[EricH]

Originally Posted by urkelman91

To be specific, is thermoplastic legal for fitting components that are typically incompatible? For instance, fitting together a gear to a threaded bolt, each with differing diameters?

Edit: Punctuation

Is it legal? Yes. (Or rather, I don't remember any rule saying that you can't use it that way.)

Is it the best way to do it? That depends. If you have a machine shop, I'd see about making a coupler out of something like aluminum or a rather solid plastic.