Z_endstop for Prusa i3 rework
thingiverse
An improvement for Prusa i3 rework's Z-endstop tuning (from eMotion Tech). Instructions Fix "Z_endstop_holder" to the left Z axis motor using two screws, and it will support the mechanical Z endstop sensor. Fix the second part "Z_endstop_tuning_screw_holder" on the lower screw of X-end_motor. This holder supports a 4mm diameter screw with an M4 nut installed below and a spring. However, omit the spring if you print the hole smaller than 4mm. Then, the screw threads directly into both plastic and nut to prevent shifting after tuning adjustments. Tuning homing position for the Z axis will become much simpler with these components: adjusting just a quarter of the screw's turn affects the home position by less than 0.2 millimeters. August 2016 : STEP files are now available.
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