Compatibility with existing gear and sprocket families:
- LEGO Technic
- Fabrication on laser cutters is common, works well.
- Sherline examples
- Taig Mill examples
- Bridgeport examples
Hybrid fabrication; RepRapping and then precise tidying of each layer with a milling/routing head is the most promising.
- Direct: We can make the plastic gear directly
- Mold: We can make the molds for filled epoxy gears. See HandmadeGears.
- Timothy Edward's build of a Meccano Gear Making Machine, technically a gear hobber:
- Forrest Higgs proposed this once.
- We can make molds for Filled epoxy
CNC plasma cutting
2D cuts can be stacked, with through holes for bolts to provide alignment and compression, allowing for the construction of sturdy power transmission components for keyed shafts.