I'm looking at designing a bunch of parts to vacuum form. My first mold I made by copying the part and performing a boolean of the shelled part on the mold part, cutting off the shell. This was slightly involved, and while the resulting mold is usable for this test part, the changes won't be ideal I think for other parts.
Are there other ways of doing this operation that I should be looking at? I suppose I could be looking at using a female mold instead of male, it is after all the outside I'm interested in having controlled after all, but I'm wondering if there's a way to get a good male mold.