#8 Thumb wheel

thingiverse

I'm Using a Custom Thumb Wheel for Bed Leveling on My Printer. I'm Utilizing Mostly SAE Hardware, So I Drilled a Hole in the Center of This Device That's 3.8mm in Diameter and Ran a #8 x 32 Tap Through It to Create Some High-Quality Threads. So Far, It's Working Extremely Well for Me. The Design of This Thumb Wheel Is Very Simple and Flat, Making It Easy to Print and Update If You Need To Make Any Changes. I've Included the Sketchup .skp File If You Want to Modify Anything.