I'm new to 3D printing and I spent half a day printing this belt before I finally decided to make this file to speed things up. I figured I would share it with you. It has an extra supported dowel, so you shouldn't need to print any individual ones for the peak, end, male, and hole pieces.
I also suggest you print a single dowel at twice the length. Sand it down a bit after and it can help you figure out the fit you want without locking the shorter dowel in before your ready. (do not scale the whole thing!)