M3 Bed Knob

Manage to mangle a bed leveling knob on your printer? Here's a replacement knob for you! 

Designed around the same M3x10 threaded insert used on the original bed knob that came with my CR-10. Includes small portion of plastic past the threaded insert to act similar to a nyloc nut to prevent loosening over time.

Link to the threaded insert kit I bought: https://www.amazon.com/Hilitchi-Threaded-Embedment-Assortment-Projects/dp/B07VFZWWXY/

If you're sufficiently motivated you can also use your soldering iron to pull out the threaded insert from your damaged bed knob.

Press threaded insert into print before removing from your print bed.

I used ASA here, but I don't think it matters which kind of filament you use.