[lincpimp]

Hmm, I was putting some thought back into my rc weedeater the other day.

Still set on using 2 outrunners with custom gearboxes for wheel drive. Setup like a zero turn mower, independent drive wheels on the back and swivel casters on the front.

Decided that a semi floating deck would be a good idea. My design has a central backbone chassis, and the deck would pivot off that in the center. The deck would have the ends cut off so the weedeater blades (plan to use those plastic blades that they sell to use on a weedeater) could stick out 2 inches or so. That way I can cut around trees, etc. The deck would have rollers on each corner so that it would remain at a fixed height, so no grass gouging.

I planned to use a stick radio, and have each stick control the rear wheels. So it would "feel" like my gravely zero turn.

I agree that worm drive would be nice, but making the gearbox to hold it all would be complex to say the least. My gearbox idea uses 4 gears riding on 3 shafts to get enough reduction to use a axi 2826 (660kv) outrunner with a 40 series mulcher tire to get around 5-10 mph. I plan to run 4s lipo as it fits the motor requirements and allows for cheaper escs. I would also use the gearbox as a stressed member of the chassis.

As for the blades I have a pair of axi 4130 outrunners that could be directly driven to power the blades. A pair of inexpensive air escs would be used for them, as they would be controlled by the 5th channel knob on my dx6 transmitter. Knob would give me variable speed as well. Might even set it up so I can switch off either side when just cutting down a fence line or around a tree?

This will be used primarily to weed eat around trees, poles, etc. So not as much as you plan Brian.