Parametric ball bearings

thingiverse

An adaptation of the model found at http://www.thingiverse.com/thing:19468 encountered printing issues on my machine, so I modified it using OpenSCAD to maintain original dimensions and added support structures. This accessory is ideal for boasting purposes or integrating into a larger project. To use, select the STL file if the measurements (inner radius of 11mm, outer radius of 30mm, height of 10mm) meet your requirements; otherwise, utilize the SCAD file and customize as needed (note that converting to STL may take considerable time on my computer but yours might be faster). When slicing (using a layer height of 0.3mm, two additional shells to prevent ball warping, and no raft or extra support), print with ABS filament. Carefully clean the balls while still attached to the support structure by cutting the ring-like feature and using a needle file to remove bumps. Lastly, detach the balls from the bearings for complete cleaning (further refinement is challenging at this point). Have fun!