Vibration negating mod for the Ender 3 bed leveling knobs. Pictured is the slip on grip and the plate on one of the corners. All four corners must be done to successfully combat the vibrations.
Finally got mine to print successfully. I had to refine a profile at .08 layer height to get the locking ridges to come out correctly. This is a sanity saver for me when doing long prints. Before I had at least one of the bed leveling knobs coming loose after about 2 hrs of printing. Now they can't move with even the worst vibrations that the machine is capable of producing on its own.