Created this model because I am planning to sell some of my tuners that I swapped out. I wanted to create a better way for shipping tuning pegs safely in the mail without them getting damaged for a buyer. This was designed around Gotoh SG381-MG tuners, butthey may fit others. I included the diagram of the tuners in case you needed to know more about the fit or compatibility. I recommend surrounding the tuners in a few layers of bubble wrap before shipping. I never kept the original packaging from Gotoh, and this was fun to design.
Additional info: the small screw holes are 2mm, which was fine for me and my Prusa MK4 printer. FYI if you make them too small, the screws will get chewed up while trying to screw them into the print. You could also use a 5/64 drill bit if yours ends up being too tight. Originally, I tried 1.5mm but it was too tight and I had to use a 5/64 drill bit. For that reason, I redesigned the holes for 2mm.
Here are some print settings…
PLA or PETG is fine
4 perimeters
10-15% infill (I did rectilinear, but could do gyroid if you want)