Ultimaker Extruder Stepper Gear
thingiverse
The Ultimaker Stepper motor's stock gear is designed for ABS printing, requiring initial layer compression to enhance adhesion, causing wider prints. To counter this, I tapered the bottom of my model and accounted for ABS hole shrinkage. Printing instructions include .4 thickness single-wall, 100% fill, and friction retention on the stepper shaft by pushing the piece onto it.
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