Z-axis coupler (stepper with pulley and threaded rod coupling)
thingiverse
Coupler for Z axis stepper motor on my 3d printer gets squeezed over belt gear, preventing damage to gearing. Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1329750 Instructions Using the following options: screwDiameter = 3.2 screwHeadDiameter = 6 nutThickness = 3 nutWidth = 5.5 screwThreadLength = 10 couplerHeight = 30 motorShaftDiameter = 5 couplerExternalDiameter = 25 threadedRodDiameter = 11 halvesDistance = 0.8
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