Smaller Leveling Knob

thingiverse

After upgrading my Ender 3 Pro with vibration dampening, I discovered that the rear left knob is rubbing against the Y-axis stepper motor. To resolve this issue, I've come up with a solution: designing a new leveling knob that accommodates an M4 nut, since my bed features M4 bolts - be sure to verify the bolt type before printing, as some may have M3 bolts. I created a knob with a diameter of approximately 49mm, slightly smaller than the original 60mm knob. A 0.2mm resolution should provide adequate results. Update: I've added an alternative knob version 2, which is taller and positioned further away from the bed mount to minimize interference. This design features a closed hole for the M4 nut, allowing for seamless printing. The printer will automatically stop at a height of 4.1mm and prompt you to insert the nut before resuming the print job.