Self Aligning Bushing Block
thingiverse
Improve your Thing-O-Matic's Z axis performance by following these steps. First, plot four bearing blocks and install an o-ring and bronze bushing in each one. These modifications enable self-alignment of the bushings, reducing binding and noise. Mount the blocks on the Z axis with #2 wood screws, ensuring ample clearance for alignment. This $5 upgrade enhances Z axis stability and quietness significantly. Be mindful of tight clearance near the shaft retaining bolts; using a different screw head or lowering the Z axis home switch may help.
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