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Prosthetic Limbs!

Posted: Thu, 26th Jun 2003, 5:18pm

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Mantra

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Hey everyone! Inspired by Sollthars fine make-up effects work, I thought I'd post a shot of a limb I made. This is actually just one of 3 versions of the limb, we made this one, a version just up to the bicep and a wrist stump. As you can see it has hair punched into it (quite a hairy fellow) and was used as a 'Barbarian Arm'.

Mantra

Posted: Thu, 26th Jun 2003, 5:24pm

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Hajiku_Flip

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That's freaking amazing. I thought you just laid your arm on it and photoshopped the rest out. You did this all yourself? Explain! biggrin
Posted: Thu, 26th Jun 2003, 5:32pm

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Mantra

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Thanks Flip! There's no P/Shop involved, trust me smile I made this with my film buddy who kindly donated his arm to be moulded.

The limb is made from gelatine, a great product for making life like props as it requires very little make-up.
Basically it goes like this:

1) Use alginate to cast 'actors' limb.
2) Pour melted clay into negative mould once actors limb removed (if not it's very painful eek )
3) When cooled you have clay version of the limb.
4) Make a 2 part mould in silicone of the limb.
5) Then back these in plaster or fibreglass.
6) You now have a 2 part mould ready to have gelatine poured into to create limb.

Glad you like 'Ralph the Barbarian Arm!'
Posted: Thu, 26th Jun 2003, 8:47pm

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AndrewtheActorMan

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how do u go about melting clay? it just hardens....
Posted: Thu, 26th Jun 2003, 9:14pm

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anonymous

Hey Andrew!
I use an oil based clay (plasteline) which is never fully hardened and can be melted and even re-melted if you need to. It's great for sculpting with as it retains impressions and detail very well.
If you choose to use this method be sure to melt the oil clay in a well ventilated area as it has a strong smell when hot. When it cools it regains all the properties mentioned above and can be sculpted with once again.
Hope that helps...
Posted: Thu, 26th Jun 2003, 9:19pm

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Mantra

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Oooops! Sorry about that Andrew, it was me in the last reply but being half asleep I didn't sign in! Hope the post helped...
Posted: Thu, 26th Jun 2003, 9:41pm

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AndrewtheActorMan

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me, being so stupid tryed to melt sum clay in my microwave and it started smoking and smoke filled the kitchen, now i am currently probley breathing posionous feums......... my main consern is all my pet birds....






thanks for ur help, tho i prob. wont do that again.......
Posted: Thu, 26th Jun 2003, 10:04pm

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Mantra

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Burnt clay, nasty!

Don't use a microwave to melt ANY clay, even oil based clay, the heat will be far to intense!

I use a small portable electric two plate stove and melt the clay in a teflon coated saucepan in my workshop. Adjust the heat as you go, always watching the clay to make sure it doesn't start bubbling up. Make sure all the workshop doors and windows are wide open.

Mantra
Posted: Thu, 26th Jun 2003, 10:07pm

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AndrewtheActorMan

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i told u it was stupid.... smile .................................
Posted: Thu, 26th Jun 2003, 10:37pm

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Aculag

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I also thought that was photoshop. That's a really great job. Proud of ya!
Posted: Thu, 26th Jun 2003, 10:43pm

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Merola

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AndrewtheActorMan wrote:

me, being so stupid tryed to melt sum clay in my microwave and it started smoking and smoke filled the kitchen, now i am currently probley breathing posionous feums......... my main consern is all my pet birds....
Nice move Andrew smile
HEHE, try putting meatloaf in the microwave for an hour... It smells AWFULL!

wink
Posted: Thu, 26th Jun 2003, 10:46pm

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Merola

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Mantra... I (and probably everyone else) really think you should create a well ilustrated tutorial about how to create Prosthetic limbs etc smile

You really REALLY should smile

BTW, Nice work smile

</merola>
Posted: Thu, 26th Jun 2003, 11:57pm

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Spam_Daddy

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yea yea yea! I wanna see what the mold looks like smile
Posted: Fri, 27th Jun 2003, 12:14am

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Obi

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Am I right in thinking alginate is 10/16? Or is 10/16 a self-skinning urethane foam? Damnit, I can't remember. Anyways, can you PLEASE show us how to do this. I'm trying to make a fake head, what you produced looks real enough without an hours worth of makeup.

EDIT: I actually tried this once. How do you get the persons arm out of the damn alginate when its cast? Doesnt it just go hard around the person arm? crazy
Posted: Fri, 27th Jun 2003, 1:07am

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AndrewtheActorMan

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Merola wrote:

AndrewtheActorMan wrote:

me, being so stupid tryed to melt sum clay in my microwave and it started smoking and smoke filled the kitchen, now i am currently probley breathing posionous feums......... my main consern is all my pet birds....
Nice move Andrew smile
HEHE, try putting meatloaf in the microwave for an hour... It smells AWFULL!

wink
Thats not funny!!! lol... grrrrr
Posted: Fri, 27th Jun 2003, 1:21am

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Obi

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Tomorrow I'm gonna experiment and make a lifecast of my hand. To find out how it goes, stay tuned!
Posted: Fri, 27th Jun 2003, 3:40am

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wdy

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Very interesting. I'd really like to try this out, but you think you could write up a more deatialed tutorial for people can maybe try this out? Also what did you do about the hair on the arm...anyways a nice tutorial would be nice and keep up this creative work.
Posted: Fri, 27th Jun 2003, 8:37am

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Obi

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Unfortunately, your gonna have to get hold of compounds you never even heard of. This time, newbies on the forum cant just jump right in and make a pile of crap. With every new post about something cool, theres a horde of 13 year olds now suddenly adding zombie effects to their movies. Go figure.
Posted: Fri, 27th Jun 2003, 8:37am

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Obi

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Don't assume that was a personal attack to anyone either. Just my 2 cents.
Posted: Fri, 27th Jun 2003, 9:59am

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Merola

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Obi! you are my hero you have inspired me to make Brain Dead 2 1/2! I'm gonna have like many arms and stuff, like, all bloody and stuff, Like ... you know...

Not smile

Keep up the good work smile

</evilmerola>
Posted: Fri, 27th Jun 2003, 10:06am

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Obi

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Actually, Brain Dead 2 (Dead Alive 2) is probably already on the cards, since Pete Jackson recieved so much cash for making LOTR, it's unreal. sleep
Posted: Fri, 27th Jun 2003, 10:18am

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Merola

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Dang, I'll sue him for stealing my idea.

Hehehe, I like the progress of Peter Jacksons careere....

Brain Dead, Bad Taste.. and all those shitty low budget movies...
and then, some years later Lord of The Rings, a multimilion dollar movie.

</meexmerola>

Obi, remember, we want LOTS of pictures in your tut
Posted: Fri, 27th Jun 2003, 10:26am

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Obi

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Bad Taste was probably his ownly 'Low-low' budget movie. Braindead (Dead Alive), Forgotten silver and Heavenly Creatures cost him a pretty penny. Especially since he created his own effects company (Weta Workshop and Weta Digital) specifically for the creation of Heavenly Creatures.
Posted: Fri, 27th Jun 2003, 1:55pm

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Animator

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Realy nice arm.
How did you get that natural skin colur?

Is it a solid gelatin arm? and how do you get gelatin to be so strong?
When they did the gelatinears in LOTR they mxed it with some chemicals (can´t remember´what). Did you do this?
Where do the hair come from?

Realy nice work! biggrin
Posted: Fri, 27th Jun 2003, 2:56pm

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Mantra

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Hey guys, thanks for the positive comments. I will indeed put together a 'pictorial' over this coming weekend.
As 'Obi' said there a number of elements to creating this stuff and it can be expensive and time consuming. Can I also be boring for a moment and say that when using chemicals you HAVE to be SAFE. Don't want to burn, poison or suffocate your actor. Ok, that's my friendly lecture mode over...

The arm as you see it plus the moulding materials probably worked out around £200. That said, once you have the mould it'll keep for a long time and there are alternative ways of making this stuff, (make a plaster version and coat it in air dry latex for around £20) this just happens to be my chosen route.
To answer some questions raised :

>The color is obtained when you mix your batch of gelatine, you add make-up powder to get the right tint/skin tone of the actor.

> The arm is solid gelatine. The 'real' weight of it normally freaks people out. This was done because it feels and looks more real when actors are interacting with it.

>Gelatine is strongest when it is mixed with as little water as possibe, I'll try to cover this on the 'Pictorial' when I post it.

> The hair is real hair,my partners girlfriend is a hairdresser and so she 'nuked' all the bugs and made the hair safe to use. Nice!

For those wishing to try this kinda stuff out there are some good books available which I'll post up with the 'Pictorial, and please experiment safely.

Mantra