Designed these so I could print them in the same color as my guitar. They fit my MIM(Made in Mexico) perfectly! Printed on a Replicator 2 in MakerBot Translucent Red PLA.Oriented upside-down so supports won't be needed. If printing in PLA make sure to have your print fan on for the overhang. If you're printing in ABS you might need to scale 1-2% to account for shrinkage, but I haven't purchased another color guitar to print more knobs yet!