Ender 3 Bed Leveler Knob Gripper (anti-slip) with spring tensioner
Description
Original design 3611855 had problems I faced on Ender 3 Pro: 1. Diameter was less than bed screws. 2. Grip surface was made in unprintable way, hence a mess of strings, not clean print. 3. slip-on_gripper cutouts were not fitting at all stock knobs. I do not want to print knobs, I wanted to reuse them. 4. After adding nuts to hold plate screws knobs become loose as plate has to be moved higher. Spring was almost doing nothing. I do not want to buy new sprints ad stock ones are looking good. To fix I did: 1. Increase holes diameter to 4.2mm 2. Redesigned to printable surface . 3. Redesigned a bottom part for bigger cutouts for stock Ender 3 pro knobs. As editing STL is a mess I've recreated bottom part. 4. Added a simple 8mm spring tensioner.stl Fusion360 source files included for people to modify design to fit their needs. Uploading STL only is really bad practice. I went a couple of iterations and tested it fits smooth in printer. After modification bed leveling feels incredible and very digit. I will not buy springs after that, sorry retailers :) Added photo of knob without modification and with parts installed to compare sprint tension. G-code for 1 knob set attached,
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