Rokenbok Diameter 3 Half Circle

A pair of this part together creates a small circle. Put two together with two of the bearing flange (http://www.thingiverse.com/thing:323323) to create a bearing that can spin freely inside a 3 x 3 block opening.

Order this part on Shapeways: http://shpws.me/sDJG
The files with the "Rep2" suffix are optimized for the MakerBot Replicator 2 to print at standard (0.2mm layer height) resolution with built-in support (no need to add supports in MakerWare).

These designs are owned by Rokenbok Education (http://www.rokenbok.com) and published under license by kid*spark (http://www.kid-spark.org), a nonprofit corporation, for nonprofit and educational uses. Drawings of these designs are licensed under Creative Commons Attribution-NonCommercial-ShareAlike (BY-NC-SA) 3.0: http://creativecommons.org/licenses/by-nc-sa/3.0/ The drawings may be freely downloaded, modified, and used, providing that attribution is given to Rokenbok Education and the drawings are for non-commercial purposes. A