UPDATE 25-01-2020: Addes some DXF files, you might want to resize the holes to place screws in.
Want to imnpress you friends? Print out these weird looking gears for them! they will love it.
Scale all 3 parts down by 50%
Print them solid at 0.1 - 0.2mm layer height
Lock the gears in place and spin the wheel!
Have fun printing! I'd Love to see your results