Restraining Bolt for R2-D2 and Other Droids

thingiverse

I thought this 3D printed bolt design would be a better fit for the dome community, even though it's not strictly an accessory or a remix of one. Other restraining bolts exist on Thingiverse, but they didn't quite meet my expectations. One thing I wanted to include was knurling on the base. Since I'm relatively new to 3D modeling, I thought this design would be within my skill level. It was created in Tinkercad using estimated dimensions at first, but I recently received some accurate numbers (May 2017) and updated the bolt accordingly. A hole is left in the bottom for a 10mm x 4mm magnet. The original version will remain available if needed. Printing this bolt shouldn't require any supports, except possibly for the hole at the bottom. The groove around the edge and other features should print well without support material. I recommend printing it at the thinnest layer height possible to achieve the best results.