• 150mm Arca-Swiss quick release plate
  I used this Amazon listing
• 2x 150mm long, 6mm diameter steel linear shafts
• 150mm long T5x2mm leadscrew with nut
  I used this Amazon listing
• 2x 696 ball bearings
• 2x 1/4-20 hex nuts
• M3 socket head cap screws and heat-set threaded inserts
• M2 socket head cap screws and hex nuts

• N20-size gear motor, 200RPM
  I used this eBay listing
• SS-3GLP or compatible microswitch
• Camera remote shutter release
  For cameras with the standard 2.5mm TRRS jack, this is as simple as a matching cable and a small N-channel MOSFET
• Motor controller PCB

All code provided is released under the MIT License.

The CAD files are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.