A couple of months ago, Dave (@metalsman) contacted me. He and his son have been working on a zero-turn mower similar to mine. We compared a lot of notes and learned from each other via Skype and Facebook Messenger. At that time Dave was not to the point of running his mower in automatic. He has made huge progress and now has an operational automated mower. Here is his first run!
Some of his design features:
- The actuators are assembled on a frame that is easily removable from the mower to allow manual operation and to allow work on the actuator subsystem on a bench.
- He is using a Raspberry Pi running Solex Base (hope I have that right) to inject the RTK correction info into the MAVLink stream. The Raspberry Pi is also acting as a WiFi access point allowing multiple computers, tablets, etc. to connect via UDP.
- Hefty (though a little expensive) Torxis servos.
In addition to a nice design and implementation, luck was on his side, too. Without ANY change to the tuning parameters, look how well his mower is tracking for its very first run. Look how snappy and perfect his pivot turns are. Dave is on his way to a great machine!
Dave, we look forward to more videos and other information!