Mini-er Brain Gears
thingiverse
I decided that there was too much wasted space in my previous mini brain gear assembly, so I redesigned the gears to make them thinner. This also speeds up assembly as I can now use 2mm dowel pins (see link) as shafts rather that having to painstakingly measure, cut, and shape PLA shafts. Post-printing only requires one to quickly ream holes with a 2mm drill bit. Perhaps I will make an even smaller version in the future. https://www.amazon.com/Stainless-Steel-15-8mm-Fasten-Elements/dp/B00B3MFRRK/ref=sr_1_1?ie=UTF8&qid=1517276253&sr=8-1&keywords=2mm+dowel+pin UPDATE 07OCT18: I highly recommend using my updated design instead of this one. It may be found here: https://www.thingiverse.com/thing:3141712. Parts are not backward compatible.
With this file you will be able to print Mini-er Brain Gears with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Mini-er Brain Gears.