Thumb wheel, 4mm Socket head screw
thingiverse
I use this thumb wheel for z-axis adjustment on my printer. It gives me much better control over first layer now. Print Settings Printer: Felix 3.1 Rafts: No Supports: Yes Resolution: 0.1 mm Infill: 60% Notes: Print with thick walls or the lower part as 100%. Just a little cleanup on hex part needed, but it fit snugly into socket screw the first time. Post-Printing Use on my printer I filled in numbers on top with fingernail polish, a bit messy but quite readable. How I Designed This Quick Import into TinkerCAD I imported original model, added pin and hex parts, combined them, and exported.
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