This
is all ideas gleaned, shared, offered up located or otherwise swiped
from folks on a number of forums I subscribe to. Some might be mine,
others from known sources, and yet others from unknown sources.
If
images are associated with the ideas, of course I will have them
here, if not, time to use that vivid imagination of yours.
I
will try to bunch them together in like categories if at all possible.
LEDS
and Electronics
OK,
well for simplicities sake, lets just leave out caps and inductors.
Its
just wires and resistors and power supplies (and LED's)
Lets
all learn Kirchoffs(sp) Voltage law.
All voltages encountered in a complete loop have to add up to zero.
Using this and ohms law you can determine your resistor size to
limit the current to your LED.
This
is how you start to figure your resister size for your LED circuit.
(The
Real) Grim Shady
aka Todd Snyder (icq 381881)
www.home-fires.com/bluemarble
Add
up the number of LED's you plan to put in series and multiply that
number by 4 (the forward drop voltage of each LED). example
2Led's X 3.8(volts) = 7.6 volts
Power supply must be at least as large as this number.
Subtract
the LED voltage from the power supply voltage.
example 12v(supply)-7.6v(leds)= 4.4 volts left that must be dropped
on the resister you put in series with the rest.
You
know that you want 30ma running through the LED's and so that means
that 30ma must also run through the resistor.
so
using algebra and ohms law 4.4v = R X 30ma or 4.4 / 0.03 = R = 146.6667ohms
for two LED's in series using a 12v source.
Easy
as Cake
Now
you do it for a 9 volt source.......
Equation
is [{(power supply voltage)-(sum of LED voltages)} / (0.03 Amps)
] = (resister size)
The
only unknown is the resister size.
(The
Real) Grim Shady
aka Todd Snyder (icq 381881)
www.home-fires.com/bluemarble
Ok,
dis boy doan do no Java, BUT... You
treat the LEDs as a Zero resistance (even though they are not, they
have a bit). The resistor defiens the current through the LED, and
you want to nail it at rated current.
So
for a 9 volt supply/battery, you lose 3.8 in the LED that leaves
5.2 volts you need to loose in the resistor.
So V=IR, R=V/I, R=5.2/.03, R=173.3ohms.
Now
your nearest standard values are 160 and 180 ohms. One 160 will
work, be nice and bright, but may shorten life. 180 (you probably
won't be able to tell the difference in brightness really) is probably
best.
So
180 ohm resistor for ONE LED on a 9 volt supply. Goes in series
with the LED DO NOT hook up the LED without it! You will burn it
out instantly.
-----LED-----resistor------
Now,
P=VI, P=5.2 (resistor) .03, P=.156 watt. Why is this important?
Because resistors come in power ratings.
1/4, 1/2, 1 etc.
More
LEDs? You can use one resistor for a set of them in parallel:
.---LED---.
|---LED---|
|---LED---|
|---LED---|----resistor----
|---LED---|
.---LED---.
But
remember now each LED adds 30mA (.03amps) to the total current through
the resistor. So:
So
V=IR
R=V/I
R=5.2/(the
number of LEDs)*.03
So
for example 10 LEDs, R=17.3ohms.
Power
dissapated by that resistor?
P=VI
P=5.2*(10*.03)
P=1.56
watts!
Play
it safe and DOUBLE the power rating of the resistor. Above 2 watts
you usually have to go to ceramic "box" resistors. RS
has them usually in 5 and 10 watt.
Summary,
these are pretty high power LEDs. As you add them together, the
current through the dropping resistor
goes up. .156 watts for each if you have used to math above. If
you use the math above, you have optimized the
brightness of the LEDs.
Have
fun.
Now,
how can I get some of these LEDs?????
--
John Henry
Visit the bug shop at www.thebugshop.org
R
= (V1 - (V2 x N)) / A where,
R
= current-limiting resistance (in ohms)
V1 = battery voltage (in volts)
V2 = LED voltage drop (in volts)
N = number of LEDs in series
A = LED forward current (in milliamps)
wbn
P.S.
If you don't have a value for 'A' use 15
Ok
Wil - here's your "Lazy Man" - 7% ($) solution
Get
on the stick this Monday morning - 7 or 8 am your time, and call
Hosfelt Electronics at 888-264-6464 or 800-524-6464.
For
each Boris, ask them to send you:
1) one - 6 volt, 800 ma regulated A.C. adaptor Cat. # 56-586 cost
= $ 3.99
and
2) one - 3 volt, 300 ma (unregulated) Universal A.C. adaptor Cat.
# 56-431 cost = $ 2.99 (this is an adjustable kind but you set it
at 3 volts for this purpose of course :)
The
reason to call early Monday is that "regulated" power
supplies like # 1 above "sell out" pretty quick - but
you may be in luck, I just got the catalog that lists this one :)
After
you get them - cut off the "connector ends" and strip
back the insulation about an inch on both. You must be able to identify
the plus and minus leads of each A.C. adaptor - either by knowing
which wire is which, stated on adaptor itself, or by measuring with
a meter.
Then
all you have to do is:
Connect the negative leads of both A.C. adaptors together and solder
this combined negative lead to the battery compartment, negative
terminal, shown as the black wire line in the diagram. Next solder
the 6 volt positive lead to the (red line) 6 volt battery terminal
and Finally solder the 3 volt positive lead to the (other red line)
3 volt batt. terminal.
Bingo..
Boris has busted his battery boundary !!
:>)
Jim
p/s
if Hosfelt is sold out of the above *regulated* 6 volt adaptor,
ask for # 56-889 which is an unregulated 6 volt adaptor that should
also work in this application, now that I know the approx. current
(100 milliamps) as shown on the diagram you found.
I
dont know how a solid state relay works..I thought they were Triacs
also???
They have to be something like that....
For the signal bridge here's the
values:
You need a Cap in Series with an inductor. I wound my own indiuctor
here at work.
Cap needs to be rated for voltage above the 230V. I used a 500V
one and its value is 0.1uf
The inductor should be about 17 or 18 uh.
This resonates at about 120khz
F=120khz
C=0.1uf
L=18uh
1
-------- = 2*PI*F
sqrt(LC)
(The Real) Grim Shady
aka Todd Snyder (icq 381881)
Bloomington, Indiana
www.home-fires.com/bluemarble
grim@home-fires.com
I may be missing the point here (or perhaps this is what you said,
and I
didn't comprehend it right), so here is how I would set this up:
Relay +------------------- 110
HOT to solenoid
+9V ------O . /
O / Relay Switch
-9V ------0 ./
Coil |
+------- 110 HOT from Wall
Where the 110 COLD is ran directly
to your solenoid from the wall.
(note, this is for a 9VDC coil relay).
If you are trying to do the opposite, where a 110VAC trigger is
used to switch on a 9VDC device, you will need the proper relay,
and just hook it up inverse to this diagram.
-- I
http://halloween.sitenation.com/
http://www.frightmareforest.com/
Typically, LEDs of old had an approximate forward voltage drop of
1.2 - 1.5 volts. Many of them these days run 2.2 - 3 or higher. As
long as you know the current spec ( which you have - 10 mA), you can
test one out with a 9 volt battery (or other known voltage supply)
and a few resistors, and watch the brightness come up to a usable
level.
First, decide on a supply voltage
- I'm using 9 volts for this example.
To try a particular forward voltage, calculate the resistance needed
to drop the remaining voltage at 10 milliamps. So to test a LED
on 1.2 volts, you'd need a resistor to drop (9 - 1.2) 7.8 volts
at 10 mA.
(9 - 1.2) 7.8v / 0.010A = 780 ohm.
If your LED doesn't give you a decent brightness, try 1.8 volts.
(9 - 1.8) 7.2v / 0.010A = 720 ohm
Keep bumping this up until you get
the results you like, or poof an LED.
(9 - 2.2v) 6.8v / 0.010A = 680 ohm
(9 - 2.4v) 6.6v / 0.010A = 660 ohm
(notice how 10 milliamps makes the math easy?)
etc...
Any of this jabber make sense?
-The YardHaunter
-Est cucurbita res...
Power=
I^2 X R
LED likes 20ma (right?)
R=330 ohms
P=0.132watts on the resister
(The Real) Grim Shady
aka Todd Snyder (icq 381881)
Bloomington, Indiana
www.home-fires.com/bluemarble
grim@home-fires.com
http://www.wildrice.com/Halloween/Construction/Images/FCGeyes.jpg
If the LED's are run in series then the current remains the same (20ma)
as one LED (but the voltage drop across the 2 would be twice the forward
voltage drop of a single LED). In that case you still only need a
1/4w 330ohm resistor
I didn't
look at the diagram but using one resistor to feed two LED's in
parallel would take 40ma and would require a 0.528 watt resister.
I^ time
R is (40e-3)squared X 330 = 0.528watts.
(The
Real) Grim Shady
aka Todd Snyder (icq 381881)
Bloomington, Indiana
www.home-fires.com/bluemarble
grim@home-fires.co
Yep, long air lines OK
Long Electrical lines BAD.
You can count on a wire run of 50ft
at its rated load before the voltage drop becomes an issue (2V drop).
For a max 2V drop on a 50ft line you can get away with
#14 wire is good for 15.84 amps Peak @ 28.4watts loss in line
#12 is good for 25.18 amps Peak @ 49.6watts loss in line
#10 is good for 40.04 amps Peak @ 80watts loss in line
(for a 100' line you would need
to halve the current listed above to keep your voltage drop within
2V)
To keep your wire cool (plastic
insulated) enough you will need to limit your AVERAGE current to
this:
#14 (can run all day at 18 amps without overheating) (any length)
#12 wire to 21 amps (any length)
#10 wire to 28 amps (any length)
For better wire (rubber insulated)
wire you can have an average current in your wire of.
#14 21amps (any length)
#12 25amps (any length)
#10 36amps (any length)
THE BOTTOM LINE FOR YOU:
#14 is good for 16amps continuous for 50' with no surges
#12 is good for 21amps continuous for 50' with surges to 25amps
#10 is good for 28amps continuous for 50' with surges to 40.04amps
(The Real) Grim Shady
aka Todd Snyder (icq 381881)
Bloomington, Indiana
www.home-fires.com/bluemarble
grim@home-fires.com
Randy,
A couple of things that I don't think has been mentioned yet:
1) Air compressor will not have a problem with long air line runs.
It will just take longer to compress the system up, which isn't usually
a big deal! The air compressor WILL have a HUGE problem with a 100'
ELECTRICAL run to it. Keep the compressor as close to the outlet as
possible, make sure it is a dedicated outlet, and DON'T use extension
cords for this.
2) Any circuits that you run outside should have GFCI protected outlets!
3) Make sure to keep your loads within spec for the circuit. Add up
the AMPS for each device you have plugged into each circuit. If you
don't know the amps, but you know the watts, you can calculate the
amps by using the following: x WATTS / 110 VOLTS = y AMPS. For example,
a 100 watt flood lamp would pull: 100 watts / 110 volts = .91 amps.
4) If you use extension cords, make sure they are big enough! There
are many rules and regulations on how many amps a cord can carry,
and these are usually marked on the cable/packaging. Don't exceed
that value! When looking at gauge, remember that the smaller the number,
the bigger the wire is (and usually more expensive!).
Those are my tips for the moment...
- I
The part number you want is 275-217. The plug 275-220 might also be
handy. However, the detailed instructions can be a bit TRICKY here.
Needs graphics. And hand-waving.
On the bottom of the relay you will
see metal bits in three groupings. Along the bottom are two prongs
that are perpendicular to the other six. These are attached to the
line voltage to make the relay go click.
The other six prongs are grouped
into two sets of three. The center bit on each group is the center
of the switch. When the relay is off, this center is connected to
the top (or bottom, I don't know which) bit. When it is on, it is
connected to the other end.
You want to wire "hot"
110vac to the center of both switches. Then one water valve is switched
off the top prong on one side, and the other valve is switched off
the bottom prong on the other side.
Ummm.... I guess that's it. Maybe
someone will draw a picture...
Edwin!
A TRIAC is basically a solid state relay. It looks like a big power
transistor, with three pins. Two of the pins act as a switch, and
the
third pin is a logic level gate. When +5V is applied to the gate,
the
switch is turned on.
With a proper heat sink and TRIAC,
you can sink up to 6Amps into one of
these at 110 VAC, so they are suitable to replace relays.
Interesting enough, they are MUCH
faster than a relay, and can be used
in automated light dimming solutions, etc, and their contact's will
not
wear out.
-- I
At 08:56 AM 8/27/2003 -0600, you wrote:
With 4,200 sq ft - battery lighting is a good thing! I'm trying to
cut down on total overall power needs (as well as extension cords,
etc). There are several corridors that would be perfect for VERY dim
(practically non-existent) lighting - and not having to use additional
cords for them would be a bonus.
I'll be using batt. operated (4 - D's) lanterns (cheap at WalMart)
in two different rooms this year, as well - as directed 'up lighting'
on walls. I used them last year to illuminate the direction (driving
to the haunt) signs - 7 nights, all night. Still going strong. Good
use of lighting and batteries - especially where there is no electricity
(or long extension cord runs).
M
Subject: Hall: LED's in the Haunt
How many of you haunters have those solar LED lights that some use
to line the driveway?
These are operated with a 1.2 volt re-chargeable "AA"
cell - but the LED takes 3.5 volts to light. Neat trick to increase
the battery voltage 2.5 times to feed the LED (anyone know exactly
how they do this?? There's not much to the circuit board so it must
be rather simple)
Anyway I was thinking -since I've
got them along the driveway - that I could take advantage of the
lighting on Halloween night. Put something like those bags they
use for Luminare over the lights and have faces or some such painted
on the bags?? Anyone with a better or revised idea?
Jim
Haunt Master Products, Inc.
"Products that scare at prices that don't!"
http://HauntMasterProducts.com
Hi Jim,
I hope your season is going well!
The chips that do that kind of thing are
called charge pumps or boost circuits. They are made for handheld
devices and are typically capable of taking from 1.5-3v and pumping
it up to 5v to run standard 5v circuitry. They don't have huge current
capabilities, but they can certainly run a few LEDs etc. There are
a number of manufactures of the devices, Maxim (www.maxim-ic.com)
is the first that comes to mind though. You can even get some that
are buck/boost chips, which will reduce (buck) the voltage if the
input is above 5v or increase (pump) the voltage if it is below
5v.
Talk to you later,
Carl Cowley
ccowley@cowlacious.com
www.cowlacious.com
Hauntingly Good Electronics Products!
Assorted
Ideas, Notions and Observations
MANY
Years ago they made a bag of STRETCHY web that actually had the
Words FIRE RETARDENT on the bag.
(We
would save the bags to show the Fire Marshal.)
Then,
when this stuff got popular many companies started producing similar
products but the bags had BIG lettering that read KEEP AWAY FROM
FLAME!
It
got to the point that I could no longer find the good stuff (by
good I mean
The stuff the FM would accept.)
Just
the other day I stumbled over a new company that is producing the
product with FIRE RETARDENT on the bag again.
It
is called Phantom Fiber Webs a BOO BATTS product By the Putnam Company,
P.O. Box 310 Walworth Wisconsin 53184 USA.
Jerry
^v^
Where to find GITD Paint You
can get this at Wal-Mart in the paint section as well... it is in
the small cans near the stains. The particular product is called
"GLOWZ"
Pnuematics
I
am using graphite powder in my home-made cylinder, with "rubber"
o-rings as the packing material instead of a "plunger."
Here's
a source:
http://www.mcmelectronics.com
part
# 20-883
(graphite 19-821 powder, $4.09)
The
graphite provides lubrication, and since it's not petroleum based,
it isn't caustic to rubber products. Since you'll be pouring your
own plunger of latex or silicone, you may want to experiment with
different oils, as they may have no negative effects on these products.
Eric
The
bore is the diameter of the piston, or the inside diameter of the
cylinder.
Here's why that's a factor... the force, or amount of work you can
get from an air cylinder, is equal to the air PRESSURE times the AREA
of the piston.
So if you applied 30 psi to a cylinder with a 1 inch bore,
you get 23.6 lbs
of "work power" out of it.
Area of piston = radius squared times pi, or 0.5^2 x 3.14159 = 0.78539
Area x pressure = 0.78539 x 30 = 23.5617 pounds force
Working backwards, if you needed to lift 40 pounds, and you have 30
psi air pressure, you'd need at least 1.3 inch bore, and would want
to look for a 1 and 1/2 inch bore cylinder.
Make any sense?
-The YardHaunter
-Est cucurbita res...
At 10/12/2003 08:39 AM-0400, Wayne didst break the silence of the
night, and thusly spake:
>I have an idea bopping around my head for a pneumatic prop the
would require >the prop to rotate 180deg from start to finish.
Anyone ever design a cylinder >that could do this, or any mechanism
that would do this?
There are commercial pneumatic cylinders
that do that very thing. They use what is essentially a pin following
a groove in the cylinder wall, and that groove makes a spiral around
as it goes up the length. But these are expensive, especially in
longer lengths.
You may want to consider using a
regular cylinder, and having the prop mounted on a simple swivel
at the end. Use a spring to keep it pulled to one side, and a string
to pull it the other way. Attach the string to the other end of
the cylinder, so that as the cylinder extended, the string would
be pulled, rotating the prop on the swivel. As the cylinder retracts,
the spring rotates the prop back to its starting point as the string
slackens.
Does that make sense?
-The YardHaunter
-Est cucurbita res...
Props
& Effects
I
also wanted to have a Flying Crank Ghost but never wanted to get involved
in building the crank motor. Then someone on the list built
the "el Cheepo" FCG that used an oscillating fan motor to
turn the crank. That was when I thought "why
build a crank at all... why not just use the osc. fans to move the
arms and body of the ghost?" So here's the How-To:
Equipment/Supplies
- Three oscillating desk fans, no smaller than 12 inch. Depending
on where you live, you may find these at a great sale price in November,
or the stores may have put them away. I think most Home Depots
carry them all year though. These are the only thing that
will cost you much money for the FCG.
- Cheesecloth
-Toelle fabric (as in a bridal veil)
-Three wire clothes hangers
-Heavy black thread or nylon line (strong)
-Horshoe nails (U-shaped, sometimes called carpet tacks
-Blacklight
Step 1: Build the ghost armature.
Take the three clothes hangers and using pliers, straighten
them into three straight rods. Now take two of them and bend
a loop onto both ends of the rod. These are the ghost arms.
They'll look like this: o-----------------------------o
The little O's are the loops on each end.
Now take the third one and bend it into an upside-down T, with each
length about equal. These will be the shoulders and head support.
Put the little loops on the end of each shoulder like you
did the arms:
I
I
I
o-----------I-----------o
Now interlink the loops of the arms and the loops at the shoulder,
as if they were links in a chain. You have:
I
I
I
o-------------oo------------I--------------oo----------------o
Where there are two O's, you have linked the loops together.
The upright piece is where you'll attach the head.
Step 2: Make the ghost. I
used both cheesecloth and toelle fabric for his body, or shrouds.
Remember if you use cheesecloth you have to spray it down with RIT
Whitener/Brightener for it to glow in blacklight. Toelle glows
on it's own. Refer to any of the websites with FCG pictures
to decide how you want the body to look. Drape it over the
armature's arms and shoulders and attach the end of the material
where the hands would be, at the ends of the arms.
To keep the head lightweight (easier for the fan to "lift"),
I also used cheesecloth. Blow up a party balloon until it's
the size of a human head. Take a double-thickness piece of
cheesecloth and soak it it Tacky glue diluted with water, or use
that "Stiffy" product made for use with cheesecloth. Spread
the soaked cloth over the front half of the balloon and allow to
dry. When it has dried, you'll have the front half of a head.
Using scissor or X-acto cut out the eyes, mouth, nostrils,
as you see fit to make the face you want. This "head"
is then attached to that upright piece of the armature.
Step 3: Set up the fans. Nail
three horshoe nails into the ceiling above where you want the ghost.
Put the middle one where you'd want his head to be. Put
the other two out at the extended distance of his arms. One
fan will go behind him, pulling up the head, the other two fans
will go out to his sides, pulling the arms up. Like this,
looking from above him:
Fan
Fan
o-------------oo-------Head--------oo------------o
Fan
Now
just tie your strong thread to the cage of each fan, run it up through
the horseshoe nail, which you did NOT pound all the way into the
ceiling, the tie the thread to each "hand" and one to
the top of the head (the hanger). When you turn on the fans,
they will move back and forth, pulling then releasing the thread,
and moving the arms and body up and down. You need to adjust
the direction the fans are facing in order to get the maximum movement
from them, as they "sweep" back and forth. Presto,
you have a great looking ghost!
Other
notes:
- You could replace the horseshoe nails with small pulleys. That's
more sophisticated, may improve the thread life. I will probably
do that next year.
- You can leave the blades on the fan or not. It's better
for cooling the fans if you leave the blades on it, but if it blows
you ghost around too much you may want them off. Sometimes
fans will overheat and stop running if you take them off.
- You get as much movement as you get fan sweep. In other
words, if your fan head moves back and forth six inches, you'll
get six inches of up and down motion from the arms. I wasn't
satisfied with that, so I straightened three more hangers out, and
just ran them through the fans and attached them. Then, by
tying the threads way out toward the end of the hangers, I got about
a foot and a half of "sweep", and a foot and a half
of arm movement. It was like this:
Fan cage -----> xxxxxxxxxxxxxxx
xxxxxxxxxxxxxxx---------------
<--- clothes hanger strut sticking out
xxxxxxxxxxxxxxx
from
cage. Attached on left side
That's all it takes! Most of the adults who were staring at
mine thought it was either a hologram or a projection! So,
I guess it worked pretty well. Be sure to ask me if any of
this doesn't make sense. Good Luck with it. One of these
days I'll get some video of mine up on my website.
CJ
www.ideal creation.com/dreadnight
Need
your help again! Now, I know that Cinema Secrets
(perhaps other companies?) have a special mixture
(some kind of 'stuff' mixed with warm water)
that can be applied then covered with makeup to give the appearance
of horribly fresh burns.
I've use it.. absolutely LOVE it!
Problem: I'm now spending personal funds (boy, is hubby gettin'
pissy!)
and can't afford 7 nights worth of this particular 'set'.
Question: Does anyone know what this stuff is they mix with water?
It kinda become gelatinous - but it's not gelatin
(which would 'melt' when the actor gets hot/sweaty).
Any ideas on something I could use to create the same bubbled/burned"
skin effect?
Thanks for any help!
-----------------------------------
I'm not postive, but I think the goo in question is called "Gel
Effects," and a number of places sell it. I got mine last year
from Burman Studios, I believe. And yes, while it is somewhat pricey,
it is reusable. Just peel it off, rewarm it, and it can be used
again. Of course, if you're putting makeup over it, it may
not be reusable then, so I can certainly understand your problem.
Now, about what it is -- basically, it's gelatin. Yup. Just as others
have
already replied here, it's just unflavored gelatin, mixed much thicker
than one would normally make for jell-o. <g> They also mix
in some glycerine, which helps it stay soft and also raises its
melting point a bit.
And, in practice, it's not so much body heat that melts the gelatin,
it's sweat. If you first apply a layer of spirit gum, Pros-Aide,
or even liquid latex over the area where the gelatin will be placed,
you'll find that it lasts a lot longer. (Of course, the standard
rules about where you can apply liquid latex apply! If you apply
it to hairy areas, it acts a lot like a much more expensive waxing
treatment! <g>)
You can also create a burn effect by putting a layer of derma wax
onto the area to be "burned," and then pulling parts of
it away. You can start by applying a base of red makeup before applying
the derma wax so that what you remove leaves behind a red, raw area.
Then gently apply some dark red, dark brown, and even a bit of black
makeup to the surface to give it that "just-charred" look.
If you're trying to create the look of blisters, you can take a
small amount
of vaseline and put it onto your skin, making a small mound. Over
that
mound, lay a piece of single-ply facial tissue, then paint that
with liquid latex. The latex will soak into the tissue, blending
it into the skin; it will also
keep the vaseline from oozing out of
the tissue . . unless you want it to,
heh-heh-heh. A little powder over the latex will keep it from sticking
and will likely be all the makeup you need, assuming you keep the
amount of tissue used relatively small.
I hope this helps.
Jon
I
will give you advice but it will cost you $300.00 per hour. I always
think of lawers as parasites or zombies feeding off worthwhile living
people. For a foam fabricated costume use sheet foam 1/2" or
so, make your patterns out of paper first so you know what you are
doing before you cut the foam. I make a paper mock up. use contact
cement to glue it, two coats on each surface, let it dry and then
stick it! To seal the suface of the foam there are three options.
1.
cover it with fabric, spray glue it on
2.
Use 3M foam fast 74, not 77 or 80 it has to be 74 foam fast. spray
two coats over the surface this will "skin" the foam.
Paint or spray liquid latex over the whole thing. It can be tinted
for the base color.
3.
Spray on your 3M foam fast 74, and then spray or paint on "Plasti-Dip"
that is the stuff used to give tool handles their rubber grips,
it used to be called tool dip. This will give a firm durable skin
that is like vinyl.
NOTE:
The spray 74 and plasti-dip will attack the contact cement and cause
your seams to open up; to prevent this paint two coats of liquid
latex or pros aid over the seams and let them dry. You can fill
some gaps with pros aid and cabosil or paintable latex caulk like
dap, don't use too much smooth it out with a tool and them blend/smooth
it with a paint brush and water. Do any filling before you latex
or plasti dip the surface. Plasti dip comes in a spray can or brushable,
it comes in many colors and clear which you can tint with Pro line
tints. You can get it Home Depot along with the tints. They might
not have clear, so try a paint shop or call plasti dip.
If you have cash, You can use L-200 foam from Foam Mart in Burbank.
It is
a special foam often used for foam fabricating costumes in movies.
All of the power rangers costumes and the monsters were made out
of this stuff.
They also sell foam fast 74
Ralis, Special Make-Up Effects
www.ralisfx.com
www.deadbyday.com
Wow...there
must be a whole lot of new people and very little of the Original
list
people here now. This thread was done to death years ago and I would
Have
thought one of the oldtimers would have commented. But as I have not
seen any yet, (could be me as I could have deleted it by mistake)
I will do so: When
Great stuff first came out I was very excited about Utilizing it
in my Prop shop, I have found it to be a good replacement for the
professional 2 part mix As long as you know how to use it and only
expect Theater quality results rather then movie quality.
First
off, in an enclose mold you will need to spray a heavy Mist of water
to act as a catalyst.
With
plaster molds:
Separators such as plastic film work great if detail is not needed.
Using a latex skin FIRST then spray the foam if detail is needed.
This is done by brushing in the liquid latex and allowing it to
dry first. Then close the mold and us the Great stuff.
Simple
mold:
I designed a VERY simple and cheap method of casting hands by car
waxing a surgical glove, then put it on (wax to skin) Then duct
taping it tight to the hand. Now cut the mold from you hand and
retape back together. You will have a cloth and rubber mold. Spray
water, then Great stuff one finger at a time. Once hard (about 3
hours if done properly) The mold is cut from the cast. You will
find amazing detail (such as finger nail outlines) That you would
never expect form such a simple process!
I
had this entire article on a web page 8 years ago, but after Getting
ripped
off with no credit for the articles by numerous Web sites I gave
up trying to update that web page. One last note, a new product
is trying to claim they Are better because they can produce more
from their can and can restart the foam spray after days.
This
is all marketing bull, the same method can be used To restart great
stuff (plugging the end of the straw.) They have a bigger can with
more products in it. But it cost twice the price as great stuff.
It has not sold very well, they just reduced the price of the product.
The only good thing about it is that it will harden in less time.
Jerry
^v^
I
didn't have the patience for dry brushing. I
use a sea sponge:
http://home.earthlink.net/ ~casadesade/polyfoam
one
shade of grey - Splat Splat Splat < rinse with water >
some white Splat Splat Splat < rinse with water >
some black? - Splat Splat Splat < rinse with water >
next shade of grey - Splat Splat Splat Done!
Yeah
- the sea sponge was pricey when compared to a paint brush, but
I made it all back up in sanity retention.
ScareCrow
I'ved
use a simple and cheap way to make rock formations. A paper machet
which is made from flour and elmers white glue, cheesecloth used for
the actual substance of the wall and chickenwire (octagon shape seems
to work the best) for the structure. Hang
and shape your chickenwire onto a flat surface like a wall or piece
of playwood.
Mix
the flour with the glue until you get a thick mud simular to spackle
or wood putty.
Run
a piece of the cheesecloth through the mixture, ring the mud into
the cheesecloth so that it is saturated and actually wet with it.
lay
it across like you would any machet type of work and tuck the ends
around open holes in the chicken wire, if the mud is tacky like
it should be, the pieces will stick to themselves and when hardened,
will actually bind together.
cover
the wall with this same process.
You
will find, when the wall is nearing completion, you will have a
lot of holes where you bound and places the ends of the machet through,
here you simply need to soak a strip of the cloth in the mud, and
lay it over the hole like a bandage, again, if the mud is tacky,
it will hold better.
Let
this wall dry for about 12 hrs, it may take as long as 24 depending
on the consistancy of your mixture.
When
the wall is dry, it will be stiff like white styrofoam board and
give about the same before you begin to break the bonds of the machet.
Now
you can paint.
Start
with a primer grey colored paint and work in some sprits of green
and black.
In
normal levels of light, the wall will not appear to be more than
grafitied with stripes of the green black and grey, but with appropriate
levels of low light and back light <not BLACK lighting which
wont detract from it> it will appear as a real rock wall.
seal
with a light coat of urethane to proof it agaisnt moisture.
if
too shinny after the sealer, then re-paint as needed.
I
know this is a low tech way to do it, but it is more cost effective
than hydrocal or plaster and much lighter. As well, if this is a
tear down and re-do the next year, you wont have a lot to do to
dispose of it when you are done. You MAY be able to keep this over
a period of a few years, but with the flour mixture I wouldnt suggest
it since it may attract insects and rodents over time.
I've
used this effectivly in a haunt for the March of Dimes in a booth
I designed.
Kolus
Three
ways I have tried:
1. Sculpted out of billets of EPS foam. Cover with either Polyester
resin or Sculpt-or-Coat and sand. (See my portfolio for this technique)
2. Chicken wire frame- Great Stuff -sculpt to your liking and finish
like above.
3. Probably the best - Construction wire frame - Polyester filter
material stapled onto it - Smear Portland cement, sand, color mixture
over it.
Second coat of cement mixture - Texture - Color
See these videos for the technique #3 - it is the absolute best way
if weight and transporting isn't an issue. I have both videos and
they are worth their weight in gold !
http://www.ezyrock.com/ Gene
http://www.geocities.com/7mantis/ index.shtmll
While
I don't suggest anything as elaborate, watching the HGTV behind the
scenes show about the Rose Parade made me think there's got to be
a way to get that spray on material they shoot onto a form to create
bases for the floats. I've seen it used in mass productions at our
local zoo and assume it's done everywhere you want to create a large,
permanent (well, relatively) weatherproof freeform structure. It's
what those fake 'rocks' and caves, etc. are made of. I've also seen
this stuff used to make those fake waterfall/rocks at car dealers
where they put a featured car up onto this 'natural' looking ramp/platform.
Guess it's used to make home pool grottos, etc.
At the zoo they built a large framework (2x4's, etc.), covered it
with chicken wire or a stronger wire (the floats used what they called
'pencil steel' that was small bendable tubes). Then they (zoo construction)
used fire hoses to spray this substance on (like a resin-based liquid)
on, layer by layer to build it up. The float makers used smaller sized
hoses and I assume it's hooked up to a tank and a pump. Seems to me
we should be able to explore the construction (or pool, hot tub, etc.)
industry and find this stuff and get our own tanks and hoses and spray
away, wearing protective masks, of course....that stuff is sure to
be toxic or at least risky to work around.
Viola! Dinosaurs (and anything else you make a frame for) that never
die.
Surely this is the stuff those portable trailers that fold out into
a haunt on wheels or carnival funhouse, etc. entrances are made of.
Practically indestructible and relatively lightweight.
Then, there's that spayed on foam-like stuff the "Smoking Gunslinger"
and other commercial props are made of. If our people can make latex
masks and appliances, horns and custom-fit fangs, we surely can solve
this one. Of course, you need a permanent storage solution for this
idea.
Sis
Saw
the same show last night. They were using the industrial size
version of spray foam or AB foam. Check your yellow pages under foam
to
see if you have a company in your area. About and hour away we have
a
group that will foam frames for you. Ive seen entire sets built with
this construction method. The EXTREME down side to this form of
construction is you can't recycle it. It has to go in the garbage
after
you break it a part in big chunks. Not isn't an issue if you plan
to
keep what you build but not so environmentally friendly in terms of
float and set construction. Ronda
There
are all types of Crackle mediums out there but for a large application
such as a wall they are just not economical... SO I will give you
a trick that actually works better than the medium... TiteBond Hide
Glue is the same thing they use to make crackle medium and it is much
more affordable and does a better job.. For a realistic crackle you
apply the glue over your base coat (the color you want to show through)
... let it dry making sure you have no seperation or bubbles in it.
Then paint your after color or the color you want to be seen more
over the glue.. For
more realism, after the top coat dries add more paint and the cracks
get smaller and more real looking.. for a peeled look you can (while
the paint is wet) use a paint scraper and pull some of the paint
off leaving what you pull off on the wall.. just a tid bit.. hope
it helps..
Ray
Mitchell
Roger,
I think the crackle question has been answered, but I
know some great techniques for antiquing or
distressing. It is disgusting simple. You simple apply
a very watered down paint in areas you want to look
distressed in browns or blacks and then with a large
pump sprayer spray it while it is wet it will run and
give you lots of nice streaks and stains. Add
different colors for depth.
Kevin R. Alvey AKA MR. Gore
Gore Galore
www.gore-galore.com
goregalore@worldnet.att.net
I don't know how well this will work for you but I came across this
method by accident.
1) Apply a darker Latex paint as
a base coat. Allow to dry well.
2) Apply a lighter Oil base paint
over the latex painted surface. Allow to dry well use a fan to help
it along.
3) As the oil base dries it will
crack and show the dark color underneath. This offers a distressed
look when dry.
4) Finish it up with a medium wood
stain lightly wiped on with a rag in an up and down or left to right
pattern. This gives it an aged look.
Try this on a small area to test
before doing a whole wall.
The
Freak
The
Knight Breed
http://groups.yahoo.com/group/TheKnightBreed/
Here is a detailed how to that I started writing but never finished.
It will help you through the project but is missing some of the later
steps on
re-assembling the motors to a skull etc.
Lloyd
Notes from Sue’s Dougy/Bucky
Hack Fest
Parts list
1 – Bucky skull with removable skull cap (www.boneyardbargains.com)
1 – Dougy Singing Christmas tree with Aux port
1 – ½” x 1/8” x 15” (or so) piece
of flat iron with pre drilled holes – similar to plumbers
tape but sturdier.
I got mine in the plumbing dept. at Home Depot.
1 – 18” piece of ½” PVC pipe
1 – 8” piece of round metal rod (hammered square).
General Info
First let me start out by saying
that these instructions do not include using the Dougy eye motor
to make moving eyes. In this assemble I only discuss using the flashing
light/eye effect. You can refer to other plans for installing the
eye motor.
External Sound source and the motion
sensor – The Dougy Trees that we used came with both a motion
sensor and a sound sensor. These sensors are wired into the Dougy
circuit board and activate the Xmas
carol playback function when triggered. The bass notes from the
Xmas Carols activate Dougie’s jaw so he appears to sing.
When an external sound source is
connected to the Aux. port of the Dougie these motion sensors are
disabled so the Dougy will only sing when the external sound is
playing. I plan to use my Buggy with an endless loop tape or CD
player with auto repeat turned so I don’t have to worry about
triggering the prop. If you plan to use the Buggy (Dougy and Bucky
morph) as a motion activated prop you will need to find a way for
the sound source to be triggered at the appropriate time.
So…. unless you plan on leaving
the internal speaker in place and having your Bugie sing Xmas Carols
(oooohhh scary) you can cut the sensors off, as they will serve
no purpose when the Aux port is in use.
Denuding the Dougy –
First locate the motion sensor and
sound sensor devices and cut them free from the tree or pull them
off the branch their attached to depending on if you want your Bugie
to sing Xmas carols or not (see above). The motion sensor is a piece
of black plastic tubing about 1/8 inch in diameter that is glued
to a branch somewhere in between the eyes and mouth of the Dougy.
The sound sensing device is a shiny metal object about the size
of a quarter and can be found glued to a branch near the base of
the Dougy tree.
There are two approaches to be used
when denuding your Dougy tree depending on if you plan to use the
tree base the Dougy comes on or if you are going to mount the Bugie
on some other device. We did a little of both at the Buggy hack-a-thon.
Most of us chose to mount the Buggy on a piece of ½ inch
PVC. This gives a fairly flexible (as in useful) mount for the Buggy
allowing him to be easily used in a variety of props.
Using the Dougy Tree Base - If you
are going to use the base the Dougy comes on you should leave the
central metal wire that the tree branches attach to in place. You
will need to cut, pull and hack all the branches and greenery off
of the central wire assembly. This makes for a lot more work than
the PVC mount option described below but will leave you with a strong
enough base to attach the Bucky skull to.
Note: If you remove the central
wire the remaining plastic motor supports will not be strong enough
to support the weight of the Bucky skull. We had a couple people
who did remove the central tree support wire and we ended up having
to add a piece of heavy duty plumbers tape to support the weight
of the Bucky skull. We bent the metal plumbers tape in an “L”
shape and attached it to the plastic motor support and the base
of the Dougie using a couple sheet metal screws on the base and
a couple of the black screws that came off the Dougie jaw assembly
on the plastic upright support. The plastic motor support has a
couple of holes already drilled/molded into it that are great for
mounting the brace. Sorry but I don’t have any pictures of
this setup.
If you choose the mounting option
described above then skip ahead to “Morphing Bucky and Dougy”
Using a PVC Buggy Mount –
Working from the front of the Dougy separate the branches and bend
them around to the back of the tree exposing the plastic column
that the motors are mounted to. Cut and remove the piece of greenery
that covers the front of Dougy’s Jaw. Dig around in the greenery
and find and then cut off the 3-4 plastic tie downs (zip ties) that
hold the tree to the plastic motor mounts. After all of the tie
downs have been cut the tree part of the Dougy should be free from
the motor mount. You should be able to wiggle the tree freely.
Remove the screws from the bottom
of the Dougy base on so you can access the “Guts” of
the Dougy.
Remove the screws that hold the
“guts” (circuit board) in. Pull the large circuit board
free from the bottom of the base. In some of the Dougy’s the
circuit board is glued in so this step may require a bit of tugging.
Be careful not to break or crack the board in any way.
Using your thumbs press out, from
the inside of the tree trunk, against the small circuit board that
the power supply, auxiliary speaker jack and switch are attached
to until it breaks free from the tree trunk. What you are trying
to do here is push the small circuit board unit out from the inside.
This circuit board is held in place by some glue and melted plastic
so it should break free with just a little grunting
and groaning. Turn the small PC board at an angle and push it back
through the hole it came out of so all the “guts” are
now inside the tree trunk.
Remove the screws that hold the
speaker in place and pull the speaker free with the rest of the
“guts”.
Cut a groove down the side of the
tree trunk from the hole that the motor wires feed through at the
base of the tree to the bottom edge. The groove will need to be
wide enough to pull the wires out through without damaging them.
Remove the screws that hold the
plastic motor mount to the base of the tree. Separate the guts,
motor mount assembly and wires from the tree and tree base. Be careful
not to pull any wires loose from the circuit boards or damage them
as you guide them out through the slit you cut in the tree base.
If you don’t want to use the
speaker that comes with the Dougy you can cut it off. Try to leave
enough wire on the circuit board so you’ll be able to connect
a speaker at a later date just in case you change your mind. I cut
mine off because I plan to use external speakers to get a better
sound.
Remove all the little tidbits of
greenery from Dougy’s
eyes, mouth etc.
Remove the screws that hold both
the eye and jaw motors to the black plastic motor mount.
Give the tree and base to your kids,
toss it in the trash or pack it away with the rest of your “Other
Holiday” stuff.
Morphing the Bucky and Dougy –
Flashing eyes
Prepare the Bucky for surgery by
removing Bucky’s skull cap. Also remove the springs, nuts
and bolt that hold Bucky’s jaw on. Perform the craniumotomy.
Using a hole saw, Dremel or other suitable cutting or grinding device
remove the plastic/resin stuff from Bucky’s skull. Reference
the area marked in Sues photos. Drill a small hole into in the top
rear portion of each of Bucky’s eye sockets. The hole needs
to be small enough for the Xmas light and base to fit in snuggly.
Pull the eyeball assembly from the
eye motor. Remove the eyeball (white plastic with iris) from the
rest of the eye assembly by twisting it to the right a bit and pulling
out at the same time. Cut the green plastic that forms the back
half of the eyeball assembly from around the bulbs and bulb sockets
being careful not to cut the eye wires.
Cut the wires that lead to the eye
motor being careful to not cut the wires that go to the Christmas
lights in the eyes. On some models of the Dougy the eye wires are
connected to the motor and so you may have to cut them and reconnect
them later.
Remove the screws from Dougy’s
mouth/jaw flap and remove the jaw flap from the two jaw supports.
Slide the two jaw supports and the
return spring off of the square motor shaft and save them for later.
Remove the square motor shaft by
pulling it straight out.
Take the round rod listed in the
parts list and pound it using a hammer and vise or some other suitable
flat, smooth hard surface. Keep shaping your rod until it is square
and will slide through the Dougy motor housing where the short one
came from. Note: there is a gear inside the motor housing with a
square hole for the shaft. If the shaft you are making wont fit
keep pounding it square until it does. It might help to compare
the extended shaft you are making to the one you removed from the
motor in the step above. You’ll need to get enough of the
rod squared up so it can reach from one side of the Bucky jaw, through
the jaw motor and gear (inside the motor) to the other side of the
Bucky jaw. Once your round – now square rod will fit through
the motor at least far enough to reach both sides of the Dougy Jaw
you’ll be ready to begin the assembly.
http://www.creepcrypt.com
phreeqmeout@yahoo.com
HeadCreep@CreepCrypt.com
Took me 10 minutes with a wire sniper.
Removed the arms at the cable ties, and peeled any residual needles
off by hand or needlenose pliers.
Happy Hauntings & Nul Illigitimi carborundum est,
Gorey
Minions Web Haunt
http://www.minionsweb.com/haunt.htm
The Hallow-links List
http://www.hallow-links.com
Hey Joe, I used Grainger #6z418 $530.50 you can buy the combo motor
and controller #7z335 for $577.50 the controller will need a box to
put it in.This motor is continuous duty ,1/2 HP 146 rpm 202 in/lbs
full load torque. I used this motor on a 10' diameter blackhole with
a 10" wheel to achieve a 12 rpm of the blackhole.
Now on another blackhole I used
was Grainger #2z843 $408.25 115 volts no controller ,90 rpm 1/3
HP 220 in/lbs torque. continuous duty, I used this motor on a 8'
2' blackhole , it spins at 10 rpms with a 10'" wheel, I can
make it go faster or slower by changing the wheel to a 8,9,11 or
12"
If you can find a surplus motor
make it between 85 -150 Rpm ,1/3 HP, 150 in/lb torque and Continuous
duty. If you need any info on bending those rings let me know I'll
give you the 411 on doing it yourself.
See Ya,
Phil Miller
I know what your talking about I had a shop bend ring out of aluminum
and they were like a bent bike rim, I had to use 3 wheels in some
spots just to keep the ring in place. The shop used a ring roller
which just doesn't get a perfect circle. What I did was I cut two
8' half circles out of 1/2" plywood, I screwed them together
and down to a 3/4" piece of plywood, then I put a block on the
end to hold the metal in as I bent it around the wood. I took some
little scarps of plywood 2 x 4" and screwed them around the top
of the half circles, this keeps the metal in and on the arch of the
plywood so it wouldn't jump off. The key to it was I screwed the whole
jig down to a picnic table so it was waist high and would hold the
jig in place, the other thing is I pulled on the longer part of the
metal and had someone else work on the inside. I used 10 PC 1x1"
14 gauge steel 20' lengths which were $11.50 each here in NJ. I bent
a little more than I needed, I took a piece of string and made a perfect
circle on concrete, I lad two bent halves in the circle mark then
I marked the best spot to cut them. Be sure to label each piece and
there partner. I used 3/4" metal to piece the two halves together
using self tapping screws.
The metal ring were a lot stronger than the aluminum ones I had, I
actually hung from one ring (180lbs) and it only bent 1" I used
2" wheels for the cradle and every ring stays on. It took me
2 1/2" to build the jig and bend the rings. I don't know how
long it would take to make plywood ones but it seemed easy to use
metal.
Oh , the jig had to be smaller because the metal springs back some,
I made an 8' 2" blackhole and the jig had to be 6' 8" so
8' jig should give you 9'6" - 10' rings.
Hope this helps,
Phil Miller
Jeff,
One of the other hints I've heard
(forgive me, I forget who) was to collect tall weeds during the
summer, tying them together to dry and then staking them around
the tombstones to make the stones seem more neglected. Since most
of us don't put our graveyards in long enough before Halloween for
real weeds and dead grass to grow, this works nicely.
Rowan
You can use gelatin. here is the formula:
100 grams of glycerin
50 grams of clear Kayro Syrup
50 grams of water
100 grams of Knox Unflavored gelatin
You will have to multiply this formula
to get the correct volume that you need.
Heat the glycerin in a glass bowl
in the microwasve until very friggin hot!
Stir in the gelatin.
Mix the water and Kayro together and heat until very friggin hot!
Mix the kayro/H2O and the Gelatin/glycerin together.
Cook for 2 minutes at a time for about 6 minutes stirring in between.
Let this cool a bit. Once it has
cooled enough to touch but is still pourable pour it into the hand
with your armature in place. if your latex is not strong enough
to hold it's shape fill up the hand and dump it out. Let the "skin"
of geltatin cool and repeat until it is filled. You can accellerate
the cooling by place the hand in a bucket of ice water up the the
wrist/forearm. Don't let the water get inside.
The hand will be solid and flexible.
I have made heads and body parts
out of similar gelatine formulas, it looks just like silicone.
Ralis, Special Make-Up Effects
www.ralisfx.com
www.deadbyday.com
allow the vinyl to yellow, then apply talcum powder... let stand for
days... and then go back and wipe down.. it's an old method that does
work in spite of what anyone may say...
>
Is there any way to grow real moss on it? Any tips are greatly appreciated!
> Thanks-
> Bruce (peter475@a...)
Okay... I've never done this, but
I've heard this from several different sources. This is the "National
Home Gardening Club" advise on how to grow moss on new surfaces:
"1. With a metal brush, lightly
scratch the surface of your pot.
(This makes small crevices where moss will take hold.)
2. Mix up a moist paste of one quart buttermilk, one pint composted
manure, and one pint pulverized wood-land moss. Brush the mixture
on the pot as if you were icing a cake.
3. Place the pot outdoors in a cool, moist, shady spot, or place
it on a shallow pan filled with gravel and water. Keep the pot moist
by misting it or using a fine hose spray as needed. In a few weeks,
the moss should grow into the crevices. If the pot smells a little
odd at first, be patient. The aroma should go away as the moss spreads."
The version I heard first switched
yogurt (the plain type) in place of the buttermilk. Regardless,
this recipe is probably the best use for either yogurt or buttermilk.
Hmmm.... this might look pretty
impresive on a Bucky skull! ChiaBucky!
Pete,
I can see what you mean. I dubt that they sculpted directly on any
animatronic head of any kind. It is too risky with the molding process.
I am sure that ther was a set of generic head forms that had the exact
placement of the eyes etc..
It depends on the robot head. Here is what I would do.
Take the robot head that I want to create a new skin for and wrap
it in plastic wrap. I would seal the eyelids etc with Klean klay so
that no mold material could seep into them tape other areas for that
same reason. This is hard to explain in an email but I will try. You
want to maintain the dimensions of the robot head but eliminate undercuts
and protect the electronics. Once this was done I would apply vaselint
to the eyes, mouth, anything not wrapped in plastic. You want as little
plastic as possible and for it to be smooth as possible.
Basically do a full head life cast, with alginate and then at least
a two part plaster bandage mother mold. when this is removes make
a hollow plaster casting. this will serv as your scultping form.
Clean up any defects in the plaster casting, seal it with a few
coats of shellac.
I would sculpt with WED clay. Make sure that your sculpt is at least
1/8 inch thick at it's thinnest 1/4 is better. If you did a full
head sculpt you will have to mold it in at least two parts. Front
and back usually. Seal it with Kryolan crystal clear first. Then
demold your sclupt and remove all your clay. Once the mold is cleaned
out place some plastic wrap or paint some latex into the mold. Cut
sheets of white clay 1/4 inch thick and lay them into your mold,
conform them to the negative shape thus creating 1/4 inch layer
of clay on the inside of your mold. This represents the skin that
will be cast. If the nech opening is large enough you can create
you core with the mold closed. if not you must do it in two halves
then close the mold and join them. seal the inside clay with crystal
clear. mix up some plaster and paint it into the mold reinforce
this with plaster soaked burlap. When the core is set demold. you
know have a three piece mold the front the back and the core. If
you put the core into the front and back halves and them fill with
you silicone you will get a 1/4 inch thick skin.
But
first you need a core mold. Do a brush up mold with molding silicon
on the core and create a two piece platser and burlap mother mold.
Demold when set. You can lay up a fiberglas core in this mold. This
is what the silicon skin will be attached to. Or you could puor
up the core in a rigid polyfoam and cut it in half to make a vacuumform
core.
In anycase attach your fiberglas or plastic core to your robot.
Then cast your silicone skin in your three piece mold. Put some
fabric like power stretch or panty hose on the core so that you
can attatch snaps. You can intrinsically color your silicone as
well as extrensic painting or, and hair work. Attach your finished
skin!.
It sounds like a ton of work and it is and it isn't. There are a
lot of steps depending upon what you want. There a bunch of little
things like keys and releases etc. If you want to get into this
let me know and we can go step by step.
Ralis,
Special Make-Up Effects
www.ralisfx.com
www.deadbyday.com
I use three different paints on latex.
For masks, gloves, appliance and
some props I use rubber cement paint.
5 parts rubber cement to 1 part artist oil color, thin with naptha
to spray.
Use good ventilation and a respirator.
I wipe down the the piice with
naptha to prep it for painting. after I am done painting, if I want
a gloss I use some acrylic gloss medium thinned with amonia.
For props that don't take a lot
of abuse I use Badger airbrush paints thinned with 99% alcohol.
If I need a good base color I use
PAX paint.
1 part Pros Aid prosthetic adhesive to 1 part acrylic tube paint.
I sponge or brush this on. It stays sticky even when dry. This helps
the other airbrush acrylics stick and remain flexible. You have
to do a clear coat of gloss or matt to remove the tackiness or you
can powder with tranlucent powder. You can use any airbrush acrylics
with this.
Ralis, Special Make-Up Effects
www.ralisfx.com
www.deadbyday.com
dsd@megalink.net writes:
>After finishing, go back and paint the eyes with many coats of
clear nail polish.
>The more coats the more depth your eyes will have. Just a thought.
A
good tip I've picked up recently to give painted prop eyes that
shiny, wet look is clear, 2-part epoxy. This is a technique used
by mask makers. Mix a small amount of the epoxy with a toothpick
or the end of a cheapo paint brush, then dab in onto the eye until
it's completely covered. If you want to add a touch of realism (though
this can be tricky to do correctly - watch carefully as the epoxy
sets), let the eye dry face down. This way, the epoxy will pool
a bit on the surface of the eye and dry looking like a "corneal
bulge". I've used this recently on some of my props and have
been delighted with the result.
Carol,
Mistress of the "House of Terra"
Subject: Liquid Nails Corpsification All
you do is squirt a blob on, take a stick and rub it around. I work
in sections about 6 inches long. That gives me enough goop and enough
time to make it look really awful...in a good way.
There
is a time frame that if you use the flat edge of a stick and pull
it downwards it will form sheets that break and string. Very nice
over an eye socket or rib cage.
I've
also bought cheap wigs and cut hunks of hair off and just jammed
them into the Liquid Nails. Nice effect for pieces of flesh with
hair on them. A one step rotting flesh and Hair Club for Corpses
step!
The Liquid Nails has a nice flesh tone to it already so I don't
paint. Just a little oak stain works in getting into the cracks
and niches. I paint on the stain and wipe most of it off. If there's
a little area of skull or bone showing I'll use mineral spirits
or what ever cleans off the stain to make that area a little lighter.
You just really can't go wrong with Liquid Nails and a stick. Only
word of caution is that once it's on...it's on!
Spirit of Effie
>
How does everyone glue or mount styrofoam to plywood?
Liquid nails is the best adhesive
to attach styrofoam to just about anything. Its used in theater
to attach molding carved out of styrofoam and I've seen set pieces
that are 20 years old and still holding up.
Another tip for working with styrofoam
is to cover it with cheese cloth.
It gives texture, help the paint stay on, and allows you to blend
seams when joining two pieces together. Its also an easy way to
repair damaged foam if an actor or paying customer should break
off a corner or punches a hole. Cut a new piece of foam use the
cheese cloth as patch and just paint it on with your base paint
color. Then scumble with a sponge or roller with a darker and lighter
color for texture and depth.
Ronda
Marc Fields wrote:
> I sell Smooth-On, Alumilite and Dow. As a distributor for all
of them I have found certain characteristics unique to each product.
> The mold-max 30 is an excellent silicone rubber and priced well
below > normal for the market. The rep was correct in telling you
that the rubber would last longer with cooling periods between pours,
that is true with any > material as the heat breaks down the rubber
over time. The longer the > sustained duration, the faster the
breakdown.
> The Dow HSII is also an excellent rubber and more durable than
the Mold-
Max 30, but twice as durable? Also Dow will stop making all its molding
compounds within the next 5 years, they are looking to sell it off
(which is why we are phasing it out of our line).
Hi Marc,
I meant to send this earlier but
somehow became busy mixing juice and squirting it into cavities.
8^) Without sounding like a smart-aleck, I've a couple of questions
regarding your statements above.
I have used a practice known as
a bakeout or cookout to remove RTV killing substances from our RTV
molds with success. I'm trying to understand how heat will break
down a RTV mold. I know that heat will kill a urethane mold as I
have a great story there <VBG> but I'm not sold on how it
can kill an RTV mold. Can you give me some more info here. 8^)
Regarding heating and cooling of
the molds, this is what I've found through researching with a couple
of manufacturers: Dow Corning and Rhodia (two of the biggest suppliers
to the entire silicone industry) recommend a bake out of molds after
a period of time in which the molds have experienced numerous resin
pours. The reason for the bake out is to crosslink and remove any
of the hardeners, plasticizers, and other materials that leach out
of the casting materials that are gradually absorbed into the silicone
molds during the casting process. This bake out will also help the
remaining silicone oil within the mold to move closer to the surface
of the mold replenishing what has been drawn out by the resins being
poured thus rejuvenating the mold and extending the use of the mold.
As an added extender, we have a
practice of wiping down our molds with a silicone oil prior to putting
them in the oven for cookouts/bake outs. Sometimes we just wipe
on a plentiful amount of oil onto the skin of the mold. As a result,
we are able to realize much higher yields than expected out of our
RTV's. We have some Silastic M and S molds that have literally seen
several hundred cycles. They have seen bake outs with the addition
of silicone oil prior to oven entry.
If in fact heat breaks down the
silicone molds by preheating them as you and the Smooth-On tech
possibly suggest, why would the two largest silicone suppliers in
the world suggest the above process as a mold life extender? If
heat breaks down silicones, why would that not decrease mold life
rather than extend it? You can realistically extend your mold life
up to 50% or more (before your mold completely breaks down) by doing
a 4 hour bake out at 200 F or a 2 hour bake out at 400 F. Also,
if the mold rubber has service temperature of 400 F, how does one
figure the mold will break down by warming the mold to 200 F periodically
before casting?
I'm not trying to challenge you
as much as to figure out whether I've been really lucky or others
not so lucky. ;-)
Another item that comes to mind
is that one should demold a polyurethane casting as quickly as possible
from a RTV mold upon curing. The most potential damage comes when
one leaves a urethane casting in a mold for a prolonged period of
time. Would you agree?
My other question is related to
your statement that D-C is looking to phase out or sell its mold
making compounds division. I didn't see anything like this on their
website. Maybe I overlooked it.
<VBG> Where did this come from?
Thanks,
Terry Wellman
St. Charles, IL
Hi
Sue,
Yes I did find it.
Here are the correct ratios 1 part portland cement-2 parts screened
sawdust (use chips,shavings larger pieces, not the dust.
Always dry mix before adding water add water untill you get the material
evenly wet but not a liquid. Liquid mix will make material woody.
When mixed with right amount of water you can pack material on near
vertical surface. the cured product should be strong and waterproof.
Note; if product dries without strength try dampining the sawdust
first.
Since there is no aggregate you should be able to carve them with
wood tools but I would recommend using good ones.
Hope this helps
Al
Look
for the kicking witch how to. If you only make one leg and turn it
on it's side then you have a shaking head action. It uses the flywheel
concept but adds a few things. Imagine the arm of the flywheel, attach
it perpendicular to another members via a pivot point to form a T
on it's side, mount one end of the T to a pivot point. I'm not describing
this well. When the crank moves back and forth the leg will rock back
and forth.
You could use a mechanical version for the strobing too. Just make
a wheel with four hole cut in it that the black light can shine through,
and mount it on a motor. Then when you turn on the motor the wheel
spins, and the light goes on off as it passes through the holes.
Tom
Johnson
http://www.frightfx.com
I just tried a product by "Bondex" it's a pumice stone you
mix with paint for traction on stair treads. One box is $1.49 and
it recommends you mix it with one gallon of paint. I mixed in less
paint to get a really sandstone look. It worked out really great and
was much easier than sand, I think because it is so light weight.
Looney
There was an interesting article in the latest edition of Haunted
Attraction Magazine about lighting. They had this trick: Instead of
lighting an area with a solid color, try lighting it with more than
one color from different angles to give the same effect.
He used the color blue as an example.
Lighting an area in blue to simulate moonlight tends to wash out
everything. I know this, since I've done it in my haunted yard every
Halloween. It makes it very hard to read epitaphs and just seems
to make everything blurry. Instead, the article suggested using
2 different light sources, each with a color on either side of the
color wheel from blue: cyan and magenta. The combination of the
2 gives the same blue effect, but with interesting shadows, where
one color shines but the other doesn't. I'm going to try it this
year, assuming I can find some outdoor lights in cyan and magenta!
I
would assume you could do something similar with other colors.
Scott Messinger
http://members.aol.com/smessin983/Halloween/Halloween.html
The materials I use are the cheap Bucky Skulls, Cotton Batting and
Latex. The Hair I get from Sally Beauty supply, Only 1.99 for a ton
of the good stuff. The stain I use to give them the burnt, “Beef
Jerky” look is you average run of the mill Minwax Mahogany Gel
stain. I make my eyeballs out of Bee’s wax and paint.
Dribble bleach and or battery acid on the clothes., let it work for
a few days then wash it out. After a few washings the bleached and
acid areas will fade, rot and tear. Spray the clothes with a very
dark tea and coffee mixture.
This will give them a very old aged look. This works well on lighter
colors - I've never tried the tea and coffee thing on dark colors.
The battery acid and bleach will work it's magic no matter what
the colors are. FYI - get battery acid from an old car battery.
http://www.creepcrypt.com
phreeqmeout@yahoo.com
HeadCreep@CreepCrypt.com BTW,
a blacklight and a strobe work wonders together when you use a green
filter on the strobe.. the green complements the purple color from
the blacklit objects. I used those combos last year in a crypt I had
in the front yard.. really cool effect..
Its called an opaque projector and they are super easy to make. All
you need is a box, a mirror, a light source, and a magnifying glass.
And now for an ascci diagram. The thing on the left is the lense,
the V's are feet on the bottom of the box to lift the contraption
above the image you are trying to project, the tilde's are the image
you are projecting, the slashes are a mirror at a 45 degree angle.
You fill that box with light and you're golden. I built mine with
a projection lense from an old projection TV and it works like gangbusters.
Not
too long ago, there was a thread regarding finials on 1/2" PVC
pipe. Some different ideas were exchanged and different vendors were
mentioned. This past weekend I was working on my new fence. It has
two levels of finials. Anyway one question was how does one fit a
finial with a 3/4" square over a 7/8" OD diameter pvc pipe?
The answer is very easily. Once the PVC is heated it behaves like
rubber. All I need to do was gather the sides into the square and
use my thumbnail to push in the 4th side. Press the finial down and
let it cool. When the finial is removed, the PVC remains square and
the finial will slide right back on. It took less than 30 seconds
per piece. That's includes heating it. Randy
So I am looking for a way to make it look like you are under water...
I know there is a lighting effect to do this help????
There are 2 ways to do this:
1. Against a wall: fill a shallow
pan with water (like a baking dish). Place a mirror in the bottom.
Place a fan so that it blows on the water and creates ripples (an
oscillating fan works well; set it so it passes over the water on
each turn). Shine a light at an angle into the pan so the reflection
of the ripples shines on the wall you want.
2. On the floor: Take a bucket and
cut a large hole in the bottom. Cut a circle of Plexiglas and use
silicone sealant to glue it over the hole from the inside. Add a
small amount of water (a few inches). Hang it from the ceiling,
and hang a light above it. Position a fan above it to create the
ripples.
The second method is a little more
difficult than the first method, but I hear it looks great. The
advantage is that it keeps all the mechanisms out of reach of the
public. The person who described this to me used it for an underwater
exhibit at a museum.
Scott Messinger
http://members.aol.com/smessin983/Halloween/Halloween.html
If you want something to have a cracked paint look, first you would
paint it a solid color such as black acrylic paint, smear Elmer's
glue all over it, let it dry about half way and then add a top coat
of another lighter color. When the glue and paint start to dry it
crackles very nicely. I have been in the craft business for many years
and that is the best and cheapest way I have found to do it. You can
buy crackle spray paints, but they are expensive and you still have
to start with a base coat. Just another idea
for ya...Evil Angie
You
can also use things like rasps, files, hammers, etc. to do the beating
up of a piece of furniture. Instant aging that way.
~TVD~
Subject:
Hall: Re: ((())) How can I make ANTIQUES?
Well depending on how much of an antique and how much wear this
"antique" should have I know of several ways to distress
new stuff to make it look old. you can use a piece of chain and
beat your piece of furniture with it to make gashes, dents and other
wear on a piece. Another way to get that old finish on a piece is
to use a white candle and rub it on all the areas that would normally
wear over many years of use( edges, corners, etc..) then paint the
piece and where the wax is, it wont hold the paint. You can then
go over the waxed areas with sand paper and easily remove the color
of the paint( instant aging) also, you can use what is called an
antiquing gel( basically a very dark umber paint) and do a paint
on and rub off technique. You paint it on and immediately rub it
back off. the gel will settle in low spots and cracks, giving the
appearance of years of dust, dirt and oils that have been deposited
on it and settled in the normal places these things do. Hope this
helps!
~TVD~
Get a taste of religion....lick a Witch!
http://www.geocities.com/night_stalker1669
From: "Susan Meeks" <smeeks@csg.org>
Subject: Hall: Boarded Windows
This weekend I spent working on the boarded up windows. The boards
are made of 1" foam insulation that I snagged from my husband's
job site.
They are attached to the window with fishing line tied around the
screen frame. I've still got the two smaller windows on each side
of the bay to go, but so far so good. I was really surprised at
how long it's taking to do the faux painting. I'm painting both
sides of the foam so it looks like wood planks from the inside too.
Check it out.
http://www.angelfire.com/crazy2/mssususu0/boards.JPG
From: Gwen [mailto:gwenb@whidbey.com]
Subject: Re: Boarded Windows
That does look really great!!!
What is the fishing line attached to on the board end of it?
What are you using to paint with
for the wood look?
I find just waiting for paint to
dry on the foam at this time of year is frustrating. I have to paint
tombstones today. Inside.
Gwen
The fishing line just wraps around the boards and through the screen.
I dabbed some brown paint on the line where it crosses the board.
I can see it because I know where it is and I look for it, but my
husband said he couldn't see it at all. I had to point it out to him.
The paint wasn't hard, just time
consuming. But maybe I'm just slow. I started with a base coat of
milk chocolate brown and before it dried I smeared on gray and black.
When that got almost dry I took a clean dry brush and smudged it
all together. They I dabbed big spots of black for the knot holes.
When that got almost dry I feathered out the edges.
I get impatient with paint drying
too. I ended up covered in paint because I was trying to paint one
side before the other side was completely dry. What a mess!
Pumpkin
Preserving
I
used to make dried apple rings, so make a solution of 1tsp bleach
to a gallon of water to stop the mold... then I started making wine
and now use sodium or potassium betabisulphate - cheap cheap stuff,
spray it on, stops mold...
I'm no botanist, but I don't think its drying out that destroys
a carved pumpkin.
Right after you carve it - it begins to grow mold, and I think it's
the mold that eats the pumpkin and breaks it down to a gooey mess.
I think if you could prevent the mold with some sort of preservative
you'd have the battle won. (At least prolong the inevitable) So
putting Vaseline on the pumpkin "seals" the pulp from
air and refrigerating it also keeps mold from developing. But who
has that much room in their fridge? That's why I think my idea of
a preservative would work well - remember it doesn't have to be
edible after its carved.
Maybe I can build a REAL science lab to test my theory then make
the lab a prop. ;-)
Steve in Pa.
From: "Higgy"
I start carving my pumpkins a couple nights before Halloween. I
rub the cut edges with Vaseline then wrap with saran wrap and put
them in the fridge
Software,
Video, and Tool of the Trade
John
wrote:
"So, what company makes this PC-VCR or Power VCR? Is is capable
of transferring VCR, or VHS tape to digital format? Or is the
Title
misleading?"
-------------------------------
I've got 3 of these...sort of says the first two didn't work at
100% of
advertised or to my satisfaction?
One
is from Creative Labs - "Digital VCR"....records digitally
from TV or VCR...not high quality capture...MPEG-1 encoding. I
felt ripped off. ($100?)
The
Second is a USB device "Instant DVD"....slightly better.
Box claimed you could capture directly to CD-R or DVD drive...but
this feature had a problem with drivers and did not work...as
stated on their web site...I felt ripped off. ($150?)
The
third is Pinnacle Studios..."Studio 8" with a breakout
box for analog input and a firewire input. This seems ok....it
comes in 2-3 different versions. This one uses MPEG-2 compression.
($200-$300?)
As
a side note, I installed a DVD-R drive and use DVD-X Copy to make
perfect copies of my DVD collection (for back up purposes only?).
I think this program which lists for $99 and I bought for $79...is
on sale this week at Compusa for $19. I've since also used Nero
to copy DVD's...which works fine for DVD's that fit on a single
disk but DVD-X Copy works better for larger (newer/wide screen
DVD's). Blank DVD's run about $1.50 - $2 each on sale.
PropMaster
http://www.halloweenpropmaster.com
Subject:
RE: Hall: Loop tape
What model # for the DVR, and is it a kit or a finished device
when you
buy it? Happy Hauntings & Nul Illigitimi carborundum est,
Gorey
Minions Web Haunt
http://www.minionsweb.com/haunt.htm
The Hallow-links List
http://www.hallow-links.com
Subject:
RE: Hall: Loop tape
You could also use a digital voice recorder, you can get these
in different lengths also. Radio shack has then for around
9.00. It comes with a small speaker that I cut and spliced
a pair of amplified speakers to, the MIC is also the speaker
that's on the device so I left it attached and placed it in
one of the project boxes for about 2.00 2x3x2 in box.
The
one I use is for up to 20 seconds, model # 276-1323 name on
the box is Recording Module, Its already built and runs on a
9 volt or transformer. I had to solder some leads for my trigger.
Subject: Re: Hall: Loop tape
The endless loop tape works for me. The kind used for the old
fashioned answering machines. Everytime they are tripped they
start the recording at the beginning. Is this the kind of loop
you were using? Maybe it's magnetic (or whatever that stuff is
called) silver strip has worn away and it's not resetting correctly.
I believe you can buy them at Radio Shack, in 15-sec, 30-sec,
45-sec, and 1 minute lengths and some longer.
Kit
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