Tuning peg (print a set of 4) for use with Playable Ukulele thing 268090.I printed in ABS, thinking its slight softness would better promote a friction fit. The pegs worked well in this regard. I first printed a single peg, and found that the wrapping pin (top part) was distorted due to the failure of layers to cool and solidify before the next layer was added. Printing a set of 4 simultaneously, and at lower print speed, solved this problem. If you find the dimensions are not quite right for your situation, you can adjust them in the .scad file and export a modified .stl.