I would need to copy an existing plastic part from an old robotic arm (it's the base) it's a 6" x 6" square piece of plastic, and about 3 inches high.
The part is quite simple and I have succeeded in making a plaster mold out of it.
Think of it as a fancy giant ashtray, with a nice, complex shape and 4 "legs" to make it stand
Now... I know nothing about plastic injection.... is there any plastic resin I could pour into the plaster mold to get a similar part and with the same resistance as the original plastic part?
Anyone familiar with metal molding, with a plaster mold?. Any FAQs on the net about this?
I read much talk about molding in the RC newsgroups, but very few specific info.