They are pretty beefy servos, and I have most of the tensioning mechanism removed, so the required torque is pretty low. These servos have been working for over a year now - never a failure. I designed this linkage so I could somewhat easily revert to manual operation, but I haven’t needed to actually ride the thing since the day I converted it, so I’m considering moving the servos closer to the hydro drive levers to eliminate nearly all of the free play in the linkage.

Look at discuss.ardupilot.org for topics related to mowers. I don't have a full BOM, nor am I interested in creating one.

2012 ExMark Pioneer 48"