Wish this old dog could learn a new trick. but 3D creating/printing/etc. would not be one of them. yep I'm a dinosaur...lol
I've been messing around with 3D since the original Lightwave on the Amiga Video Toaster, and reading about it since then as well. I've built a number of things, many of which are lost to time (including two Enterprises). But
Blender is definitely the best tool I've ever had, and it's completely free. Gotta love open source.
But there's no reason you can't learn. Start with a simple open-source app, and watch the YouTube videos on it. Blender may look intimidating at first, but it's easy to learn step-by-step. I highly recommend the
Blender for Noobs series on YouTube, as well as
BornCG. There are probably thousands of tutorials covering every aspect of it.
I haven't gotten into most of Blender's depth -- shading, texturing, rendering, rigging, animation, video editing, compositing, matchmoving, and such. It's actually a full-blown CGI powerhouse. All I'm doing is modeling for now, but for 3D printing, that's all you need. Hell, you could grab it and just learn compositing or video editing, and save yourself a fortune on After Effects or Premiere/Final Cut Pro. If you bought separate standalone pro apps for everything it does, it would cost you as much as a Tesla. A Tesla with solid gold rims.
Never forget...