Anyway I think I finally "get" 3D printing. I sat down for like 15 minutes the other day and drew up on paper how I wanted to design the articulated arms, then I took that to Fusion 360, and it took me about an hour because I still suck with the program, but then I had it modeled and sliced. Sent to the printer, fucked around watching YouTube and reading a book, then the print finished and I (after lots of sanding) assembled the arm. Pretty cool from an idea I had floating in my head over the past few days. Just now it took maybe all of five minutes to tweak the geometries of the arm to get what, I think will be, a better fit and require less post processing.