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Made in us
Fireknife Shas'el





A bizarre array of focusing mirrors and lenses turning my phrases into even more accurate clones of

I'm looking to cast a few small bits with sharp edges and I think everyone knows how much of a pain it is to sand&file greenstuff. Maybe brownstuff is the answer.

Have any of you ever tried brownstuff casting? I'm thinking I should create the initial mold in greenstuff so it stays malleable and I could peel it, but would brownstuff work as copies or would they harden and be impossible to remove from the mold?

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2009, Year of the Dog
 
   
Made in us
Foul Dwimmerlaik






Minneapolis, MN

I use brownstuff casting for various bits on my termies.



Use fimo or sculpy putty for the form, and then use some type of lubricant in the mold as a release. I use food grade lubricant made for ice cream machines, but I imagine using even easier to find lubes such as astroglide, etc would work just as well.

here is a nice tutorial for you:

http://www.sciborminiatures.com/en_,sculpting.php?id=571

   
Made in us
Fireknife Shas'el





A bizarre array of focusing mirrors and lenses turning my phrases into even more accurate clones of

Thanks for the tutorial and advice HF. I also appreciate the new excuse for buying astroglide.

This message was edited 1 time. Last update was at 2007/12/10 16:24:36


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2009, Year of the Dog
 
   
Made in us
Willing Inquisitorial Excruciator






Here is another good tutorial for it:
http://www.drunkdwarves.com/pages/artttgttccasting.html

This one specifically deals with making molds for detail that is on a miniature (not that there is too much difference, really.) There are a few good articles on this site if you poke around a little.

~Eric

   
Made in us
Foul Dwimmerlaik






Minneapolis, MN

As a small update, I have stopped using the food grade ice cream machine lubricant. It isnt as water soluable as I would like.

The reason this is a problem is that the lube wont wash off easily on these tiny tiny pieces, so it becomes a waste of time making them as primer wont stick to them. This has caused a huge delay in my project, as I made 75 of these brownstuff casts for 75 termies and now they are all useless because I cant get the lube off...

So stuff like petroleum jelly and food grade lubricant simply wont do.

As silly as it sounds, it really does look like astroglide will be the best bet. It washed of great with warm water with no scrubbing being necessary.

by the way, I tried talcum powder and I found it not only tons more messy, but that it doesnt leave the surface as smooth as does the astroglide.

   
Made in us
Focused Fire Warrior





Pennsylvania

I have casted a few things. I didn't use brown-stuff or astroglide(not sure what it is, sounds kinky) I used alumilite & thinned out fiber glass resin. I used silicon spray as a release. It came off w/dish soap & a soft toothbrush. Maybe that could help? The only problem I had was air bubbles in the resin.

"Before I have to hit him I hope he has the sense to run" Jerry Garcia
"Blood is Freedom's Stain" Bruce Dickinson/Steve Harris  
   
Made in us
Fixture of Dakka






Lancaster PA

Nah, Astroglide or KY are the way to go. I haven't started casting anything, but remember the rubber pollaxe I have by the door Shrew? That's a 1.5" rattan shaft in a 1" hole. Lubed it up and jammed it in, then a quick rinse of hot water and that bad boy is probably impossible to remove. It really is a great sort of thing if you want to have something lubed one minute and clean the next.

It also has other uses, in a pinch, and doesn't stain cloths.


Woad to WAR... on Celts blog, which is mostly Circle Orboros
"I'm sick of auto-penetrating attacks against my behind!" - Kungfuhustler 
   
Made in us
Regular Dakkanaut






shrew wrote: astroglide(not sure what it is, sounds kinky)


Yep, sure is!


Seriously though, I've been using dedicated mold release stuff from Smooth-On. Comes in their resin casting starter kits, or you can order it separately. Then again, I've only done resin casting, not putties like that.

-Hans

I hate making signatures:
Mainly because my sense of humor is as bad as my skill at this game. 
   
Made in us
Regular Dakkanaut






Hellfury wrote:The reason this is a problem is that the lube wont wash off easily on these tiny tiny pieces, so it becomes a waste of time making them as primer wont stick to them. This has caused a huge delay in my project, as I made 75 of these brownstuff casts for 75 termies and now they are all useless because I cant get the lube off...


Have you tried soaking them in a cleanser like Superclean or Simple Green? A nice soak and a light scrub while rinsing should take care of any lube residue.
   
Made in gb
Fresh-Faced New User






wat is brownstuff anyway
   
Made in us
40kenthus






Chicago, IL

http://www.gf9.com/store/product_info.php?cPath=36&products_id=166
Brownstuff is sculpting putty, sort of like green stuff only it holds a sharper edge.

Terrain, Modeling and More... Chicago Terrain Factory
 
   
Made in gb
Fresh-Faced New User






y not use GS anyway
   
Made in us
[DCM]
Illustrator






North Carolina

skaterboy wrote:y not use GS anyway


RanTheCid wrote: it holds a sharper edge.

-Aaron
Call For Fire

DA:80+S+GM(DPC)B++++I+Pw40k99+D++A++/mWD247R++T(M)DM+++++ 
   
 
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