The Prusacaster with Guitar Strap Mounting Holes

These are the same parts as provided by the “official” Prusacaster model, just with 4.7mm diameter holes added at the supposedly optimal locations for guitar strap buttons. The seemingly strange diameter of 4.7mm is simply so that threaded heat set inserts (M3x5x4) can be used to attach the buttons, instead of directly screwing into (and potentially splitting) the parts.