Edit 4-28-2018: Added STL file for a larger wheel to fit the CR-10S
If you're tired of your stock CR-10 bed adjustment knobs then look no further!
Designed with comfort, ease of use, visibility, and helps prevent bed leveling from moving
out of adjustment due to the many vibrations made by the printer
Knobs have 48 vertical ribs around the perimeter to provide sufficient finger grip.
These knobs turn much easier than the stock knobs due to the improved grip and
The thickness of the knobs provide a much larger surface area for your finger to press
against. The increased surface area provides a much more comfortable grip.
Utilizes the existing bed screw and 3D printed washer
Replaces stock bed leveling knobs
*Requires additional hardware that is listed below
-(4) 4mm Nylon Insert Lock Nuts (1 per knob)
-(4) 4mm flat washers (1 per knob)
I used the following hardware to prevent the bed screws from rotating while I turn the wheels to level the bed. Please be sure to use the 3D printed washer against the underside of the heat bed to prevent damage to the heating element or electrical shock.
-(4) 4mm Metric Hex Nuts (1 per knob)
-(4) 4mm lock washers (1 per knob)
Just use (4) 4mm Nylon lock nuts here too.
I can't guarantee that using locknuts or washer/nut combinations underneath the bed will provide adequate room for your springs to compress without them bottoming out (It totally could), but it worked on mine, and there are other options like using longer screws if needed, but they may require that you adjust your Z stop, but it's totally doable. You could gain some room by using a regular hex nut (non locking), and if you secure it well it should still hold without coming lose, but that can't be guaranteed. If I find some better springs to work with this setup I will provide a reference for them.
Pictures added to this thing to use as visual aids.
Enjoy! And Happy Printing!