Spherical Differential

pinshape

At some point I might develop this mechanism into something more valuable, but right now it only serves as a showpiece. The photos are outdated; check out the STL of the assembled parts for the most current visualization. I'm using four 3x10 screws to hold the frame together and one 3x20 screw to secure the two halves of the core in place. If you have a dual extruder, you might want to look at this alternative design for the gears: Gears - Candy Cane Remix Print Settings: Printer: Ultimaker 2 Supports: Yes Resolution: 0.4 nozzle __ 0.2 mm layer thickness Infill: 20% Notes: The bottom part of the gears can be tricky to work with, as only the tips of the teeth make contact with the build plate. For this reason, I have included a supplementary support structure in the STL file itself (see JPG). You will still need slicer-generated support structures for all other overhangs; use "touching build plate" instead of "everywhere." For the gears, I strongly recommend using a brim to get better contact with the build plate.