A Engine that I did in CAD to test the limits of the UP Plus 3D Printer. The Crank and pistons were printer all as one part and required cleaning in order to fit easily into the engine block.

A Video is also available on Youtube to show you that this is a working model.

http://youtu.be/a0nBzdhAV4w

The files have been specifically designed with small tolerances to test UP Plus 3d Printed quality.

In order print the crank and pistons as 1 part, the model was printed at 0.2mm resolution. so any larger and you may have issues separating the parts.

Files are also available as Solidworks 2010 format on so each individual part can be manipulated to your own personal requirements.