A circular loom for knitting tubes. I got the idea from some laser-cut ones that were given out at a maker faire, and used it as a good way to learn Fusion 360.

The Fusion 360 file (.f3d) is fully parameterized so you can generate looms of any size. You can customize:

• Outside diameter and ring width
• Slot count, width, and depth
• Material thickness (if laser cutting)
• Hole diameter and count

I have also posted .svg (for laser cutting) and .stl files (for 3d printing) for a 5.5" diameter loom with 31 slots.