Orca 0.2 linear bearing lm8uu x-carriage

LM8UU x-carriage for Orca 0.2, created with OpenSCAD.

Printed and tested.

Inspired by:
"Orca Series linear bearing lm8uu x-carriage - better/newest version" Created by raggie: http://www.thingiverse.com/thing:15420

Uses:
- "Parametric teardrop script" Created by mattroberts: http://www.thingiverse.com/thing:9810
- "Lm8uu Y axis Holder" Created by
GregFrost: http://www.thingiverse.com/thing:9871


UPDATE May-2013, version V3 GT2:

- changed the design to fit GT2 belts
- gre