This is a parametric OpenSCAD for generating round knitting looms, that can be used for making hats, socks, etc. You can see pictures of these on google, e.g., http://www.google.com/search?hl=en&q=round+knitting+loom Because it is parametric, you can use this to create an arbitrary density of pins: make any "gauge" or size of knitting device you like.I created this mainly to learn how to use OpenSCAD and because I think knitting is theoretically interesting (although I don't have the patience to do it)The object is generated using the roundLoom() function. The model in the STL file was generated by calling the function with the following arguments. roundLoom(frameHeight = 5, frameDiam = 40, frameWidth = 5, //set the frame geometry nPins=6, pinHeight=10, pinDiam=4, //set the pin geometry addKnobs=true, knobDiam = 6, // set the knob on the top of each pin addSide=true, sideHeight=8); // add a pin on the side? the frame parameters describe the base frame, and the pin variables determine the dimensions of the pins. The frame diameter, frameDiam determines the center of each of the pins. The boolean variable addKnobs controls whether to add little knobs on to the tops of the pins, and boolean variable addSide controls whether to add a pin on the side of the frame (you can see this in some of the google images online.)