Ender 3 locking bed knob modification

thingiverse

I found multiple knob modifications that work similarly, and I also discovered spring cups that keep springs in their proper place better. This modification combines both ideas, resulting in locking knobs that maintain spring positioning effectively. All components fit snugly into the stock knobs that come with the latest Ender 3. The knobs produce a satisfying clicking sound when adjusted, with teeth spaced every 12 degrees, making it easy to determine exactly how much each click raises or lowers the bed if desired. Printing orientation is as follows: - Generally, printing these parts with the teeth facing upwards is recommended. - However, for the part that slides over the plate, rotating it so the teeth face sideways may minimize support. A unique piece on the corner where the bed wire guide mounts requires attention. I merged a lockingPlate with a bed wire "strain relief" bent 90 degrees downward from its standard configuration. EXTRA NOTE: I printed and tested the new bed wire "strain relief," realizing my previous upload was incorrect. The two parts of the assembly were incorrectly oriented, so I corrected that and uploaded pictures showing how the correct version fits. Credit for the basis of my design goes to FourDogs' "bed wire strain relief" model, available on Thingiverse: https://www.thingiverse.com/thing:2958812 I included Fourdogs' lid, but I'm unsure if it's necessary in this configuration. Securing wires with a ziptie seems sufficient. Pictures demonstrate that the wires protrude about 1 inch less than with the stock strain relief. This reduction allows for a smaller overall printer footprint when moving to Y extremes, making it fit perfectly within my enclosure... https://www.thingiverse.com/thing:4111022