Bed Leveling Knob for Tevo Tornado

This is a 40 mm diameter, bed leveling knob that makes a very small footprint. The original leveling knobs are fitted into it so that the printed knob takes up no height. The center/hub fits directly over the ends of Tornado bed carriage, and the “gears” extend 10 mm beyond, making it very easy to grip and turn.

I used a DIY, rubber stepped washer to prevent the bed screw from spinning when the knob is turned. (An O-ring will work, too.) This allows for one-handed operation when raising or