I am starting to work with OpenScad more and am coming up with better things to make. This is a customizable rubber band loom. You can change several parameters to make this fit your needs. Curently it has 3 rows of pegs but I am working on getting more rows of pegs in there to make expanded patterns. Have fun printing this loom and making rubber band jewelry. To find the spacing between pegs just generate a STL and put it into another program and measure the distance. You could also look at the code for the equation I used to get the spacing correct. Or you can ask me and I'll try to give you a close number to the spacing