Wanted to make an actual tension/stretched skin drum completely from 3D printing -- so I did. This drum uses 4 quarter inch bolts at least 2.5 inches long to draw tension on a head; similar to a standard drum you see on a drum set or marching band. Except -- this one is entirely made of PLA (or what ever you choose) and is 3D printed. I only played a little bit with my sticks at 3 inches (pp if you want a dynamic marking); I was too nervous to break it to really lay into it. It does however play well with fingers. Considering I thought it was going to break I'm quite happy with it.