CR-30 Smaller bed adjustment knobs

These knobs are designed to provide more clearance for the print head. this will allow you more clearance for larger fanducts or may fix clearance issue if you've added linear rails or some direct drive systems.

Knob with 8mm ID is designed to use same heatsets that are in original knobs, you can remove them with a soldering iron and install in these new knobs.

Most applications may only need to replace the top knob.