[Metalcrafters]

There a few threads with this same question.

We started printing parts for our robot in 2011, more than a few parts. Most of them critical. We felt that it was a worth while effort for our team so we have continued every year since.

http://www.chiefdelphi.com/media/photos/38032
http://www.chiefdelphi.com/media/photos/38033
http://www.chiefdelphi.com/media/photos/38034
http://www.chiefdelphi.com/media/photos/38831
If you have any questions I am sure they will be answered.

My only true advice, understand the design limits of "your" 3D printer and apply your robot designs appropriately.

Good luck with it,