small plastics?

[kelly]

I could not find the post from 2002 2003. After reading the result I see why its not used. Still trying to find a way to pour the small plastics. I do not have a creepy crawler set but any time small plastics has been bought up in the past the creepy crawlers are talked about. The good old days. Sounds like its not posible with out injection equipment? Unless you want to fight the mold or tools.

[TightLine]

Perhaps I missed it since creepy crawlers was mentioned, but what about baking the plastic in an oven? IIRC, that's how the creepy crawlers were made weren't they?

[Delw]

gofish. another way to do it is to pour plastic in the mold then shot air from a syringe info that mold then finish topping off. some guys do that now with bigger molds that wont hand pour.

for less flashing your going to need the mold made out of a metal or something hard like fiberglass or POP. The mating surfaces will have to be smooth and flat

Kelly your pretty close, its possible however its not practicle.

Tightline. its been tried and some have been successful in an oven. I don't remember exactly the problems, but have seen pics of the results and have seen some pics.

[gofish,ill]

when your talking bout injecting the air with the syringe is the needle removed,just mating it up to the sprue?thanks

[kelly]

I might try the air shot. Has any one used seramic for a mold my sister has a kiln. It would be like a glass mold but sturdy. Any problems you can think of. I thinking of sanding after it kilned for a flat surface. Delw do you make small molds that are not custom.

[Richard Prager]

I think it would be difficult to make a copy of another bait using clay. I do believe you can make a mold from scratch pretty easily. I wouldn't use glaze (you mentioned "like a glass mold", but seal it with something like a 50/50 Elmer's glue wash. It would probably take more applications than with something like POP because the clay is so pourous, but it should work. Remember to allow for shrinkage....about 10-15% If you let the clay get to the "leather hard" stae it will be easier to work with using loop tools and/or household tools. Hope this helps.

[kelly]

They use slip, I think it called. Its a sloppy mud you dump into a mold let it dry for a minute then dump out the extra. For the glaze its like paint you put on before its baked then it looks like glass after its baked. I think the only problem it the distorting in the kiln.

[Delw]

sorry yes just the syringe into the spruce, if the spruce is to big get one of those rubber airgun tips they have a bigangle on them

Kelly the smallest I make is a 2" grub, the tail needs to be poured separate.

[gofish,ill]

thanks delw sounds safer/easier than what id tried before.dont know why but never thought of sanding the pop for mating purposes....nuther stupid question..how hard is it to pour delicate things like that 2" tail seperate and what kind of time frame do you have for a good plastic bond?already taking into consideration youve warmed the mold.thinking maybe i could change my method of thinking on this problem thanks.......kelly..just with what ive been going thru id stay away from the fired ceramic for molds....too much chance on warping unless you had a large hollow block and still chancy..the glaze never stays quite where you want it either lol.