How hard is 3D printing?

[email protected] wrote an interesting post today on
Here’s a quick excerpt
Modelling technology takes shape
If you want to make your own gun or harboured a desire to make a boat perhaps the device you need is a 3D Printer. In principle it sounds easy: just download a 3D model from the net, throw it at the printer, and whatever you desire comes out the other end.…

Read the rest of this great post here