3D print devices and services

[micheus]

Using Wings, i've just select a single face and apply Intrude command, just to generate a vaccum inside the piece (and of course a general "wall" with some thickness). Therefore, i didnt yet tried to upload a model like this: i'm afraid it isnt valid... I'll try and post here the result.

Yes, I think it's valid. Take a look at this link on Imprima3D for advises about the wall thick. It probably will depends on the material you will use. Take a look at this model:


I found this other site 3D print related in Brazil: Impressão 3D Printer

EDIT3:
Sorry for extrapolate the matter, but this video affected my feelings.
https://www.youtube.com/watch?v=WT3772yhr0o

Amazing. A simple idea helping people fell better.