When I read about the toxic micro particles dispersed into the air from 3D printing, I decided not to buy a 3D printer.
I have used Autodesk Tinkercad to make some simple geometric shaped stuff, but don't know how to copy/create irregular shapes with curves.
I also tried the Autodesk Recap 360 where you take photos of something from different angles then upload the pics and the website is supposed to make a 3D model out of it, and it really failed and gave garbage nowhere close to the intended result. The object was a black plastic sunglasses stem. I wanted to 3D print a replacement frame to replace the brittle original frame. A lot of people grow attached to their sunglasses where the style is discontinued.
There were many times I wished I could have a custom replacement part or part I couldn't easily buy from hardware store. I thought 3D printing was the solution, but it's way more complicated than I thought. Even if you have the perfect 3D model, the result might not be the same size due to shrinkage and warping.
I was hopeful seeing via the web that various public libraries gave access to 3D printing, as well as some office supply stores, but when I got a price check from UPS Store, the cost was unbelievably high!!! It's possible the employee didn't know what she was calculating and made a huge mistake with the cost quote.