Ender 3 - Locking Bed Level Knob - Retaining Lip Modification

The lip overhang is ~45 degrees, so should print well. I've included the openscad file I used to add the lip, it requires the original stl file: “Wheel_R1_0.STL” from Model. Using the openscad file it's likely you can use it to add a lip to the other versions of this wheel. Additionally, the openscad file has variables to set the height and width of your captive m4 nut, if you want to resize it