The hobbyist 3D printer prints using a thin stream of molten plasting. By adding layer upon layer, a 3D object is created. The big boys don’t do this because of problems with resolution, overhangs, etc. Now, the people at formlabs has announced a kickstarter for their FORM 1 resin-based 3D printer.
No more filament spools, instead, resin hardened by light is used. This process, called stereolitography, offers higher resolutions. Far higher resolutions. In addition to this, the FORM 1 comes with beautiful software making printing easier than before. Less engineering, more quality. I predict that we soon will reach the point where home production becomes a viable alternative.