I'm working on rebuilding the mowbot. One of the main problems with my previous design was that a lot of weight was placed on the front caster wheels, eventually causing them to fail. My next iteration of the mowbot will position most of the weight over the rear drive wheels. With less weight on the caster wheels (and perhaps sealed bearings?) they should last much longer.
The first step for the new frame is the motor mount plate. I designed this in OpenSCAD, exported to Inkscape and finally printed on paper to use as a template. A good friend allowed me to use his plasma cutter (thanks Chris!) to make this plate.
Next I will start mocking up placement of the mower deck and batteries.
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