Easiest/cheapest way for a beginner to cast custom plastic parts? Answered
I tried searching, but I couldn't find anything that fit exactly what I want to do.
I have a hard plastic figure and I'd like to be able to create removable pieces, such as armor, for it.
I'm thinking that what I need to do is to sculpt what I want to make directly over the figure using some type of modeling material, make a mold of that and then cast it in the final material? I'd like the finished pieces to be strong and durable, and not fragile/brittle.
I even thought of sculpting the pieces directly out of epoxy putty since people say it's strong and rock hard when cured, but I've never used it before and I wouldn't know how to keep the pieces from adhering to the figure, but still let them stick until they've begun to set and then be removed without deforming them. I don't want to damage the figure or end up with bits of material permanently stuck to it.
Please keep in mind that I have NEVER made a mold or cast anything before. I have no fancy equipment and I live in a relatively small town with virtually none of the specialty stores that every other DIYer in the US seems to live five minutes away from. I see Halloween projects where they say you'll need a quart of liquid latex and that you can get it at any theater supply shop for about $10. Um no. More like five ounces for $10 at a craft store. If I can't get it at a mainstream chain store, I'd probably have to order it online and I would really like to avoid spending $50+ for something that's just a fun project.
What would be the easiest and cheapest way to do this?