...
Once we laser cut our Geneva drive gears, we realized that the motor would not be at an optimal spot to drive the linkage system that would move the pizza cutter slider back and forth. So, we made a larger version of the Geneva drive that would position the motor closer to the corner of the entire mechanism. Using our kinematic analysis, we laser cut two links, one 4.5in link and one 15in link.
Scaled-up Geneva Drive:
The 4.5in link was attached to a bevel gear using an 8mm shaft that would rotate the 4.5in link and thus rotate the 15in link. A 30-tooth gear interfaces with the non-angled side of the bevel gear that drives the Geneva drive which rotates the 8mm axle that rotates the 4.5in link. The 15in link would then move the slider back and forth, cutting the pizza in the process. After laser cutting all the links, 8mm shafts were cut at certain lengths that would be placed in their appropriate spots in the mechanism.