Locking Bearing Bracket for Makerbot Cupcake

This bracket is intended to be a printable replacement for the laser-cut brackets used for the threaded z-axis rods.

The side-mount bolts pass through captive nuts to lock the bearing (608-style skate bearing) in place, removing the need for precisely aligning the nuts holding the bearing in vertical position on the threaded z-axis rods. It also may allow for easier removal of the z-axis rods themselves when combined with the revised U-shaped z-platform Small Makerbot Parts (thing:926).

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