Gents,
With all the hype here regarding 3D printers, I seriously went out and started to shop for one. Looking at software, getting samples, looking at costs of raw materials etc, etc. I have even went to the trouble of learning CAD software (still in the process...big job..can't put it down.....kinda like Rubic's Cube).
What did I find?
First, the resolution and fidelity on the 'consumer grade" printers SUCKS! As do close parts tolerances on the FDM based printers, as the plastic cools unevenly.
2nd, the out put is very grainy or stripey. One will have to fill and sand till the cows come home, so they are really only good for for big pieces right now.
Perhaps this is why the manufacturers show dog dishes, flower vase and trolls as output samples
3rd, they take hours to print, some so long that you can get optional software to monitor the thing by cell phone!
I can perhaps, see a busy resin caster/master maker using one, lets say to produce a round tire, rather than going to a lathe, but short of using a $40,000.00 3D wax printer I just don't see it for home modelling. They certainly aren't at the point that lug nuts or raised letters can be reproduced nicely.
I think if guys are serious about 3D printer possibilities in modeling, then the path is to learn CAD and farm out the printing to a service that offers prints from high end machines.
Regards
Brian Kroon