My son have 3D drawing in school using Autodesk Maya, but is not allowed to use the schools 3D printer, so he want to buy a 3D printer himself.
I turns out that 3D printers can be bought VERY cheap.
Things to consider then buying a (cheap) 3D printer :
A common problem seems to be bed leveling, eg. the Ender PRO which get good reviews and sports a magnetic bed (not spring based) gets pummeled on the fact that the bed is not auto-leveling and difficult to level manually.