I went ahead and used the bearings from RRRF, following Zach's instructions. I used a Dremel with a cutoff wheel to cut the bearings in half. Then I heated up some CAPA (using hot water in a coffee cup) and stuffed it into the two indentations and shoved the half-bearings into the blobs. I used the drive screw to line up and sink the half-bearings into the CAPA.
After letting it cool, I trimmed the excess CAPA with a razor. I removed the half-bearings, put some JB Weld on and re-seated them, using the drive screw to line them up again. The main thing I wanted to ensure was that, when I pushed the drive screw toward the motor, it sat on both bearings. This would be its normal position when it's pushing filament.
Monday, December 17, 2007
Posted by Steve DeGroof at 10:15 PM