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Building a rear steering wheel for an Electric Snow Thrower Conversion

1239 Views 4 Replies 3 Participants Last post by  sameh4
I am combining the auger and chute from a Toro snow thrower, with the wheels, motor, transaxle and wheel-frame from a golden companion mobility scooter, in order to make an RC controller snow thrower, similar to the one in this video

Unfortunately I am limited by what I have, so I cannot replace the single motor and transaxle with two independent motors to support differential drive.

Therefore I have to add steering support by attaching the third/steering wheel from the mobility scooter behind the frame in a reverse tricycle style, and attach a servo motor to that wheel somehow, which will turn the wheel left/right thereby supporting the steering of the overall vehicle.

Please see the photos below for the idea and current status. I am able to bind the frame with the auger with no issues, and the batteries and motor driver (not shown here) are also fulling working.

My question is about the best way to attach this reverse tricycle wheel and servo.

I am a software engineer during the day so getting this far without learning welding has been a real challenge. I intend to learn how to weld in a night school program that starts in the winter semester, but I am hoping to continue my progress before then and possibly redo the whole thing after.

When I start thinking about the design of this I know there will be a standard bolt through a C shaped bracket around the wheel which has the bearings already in place. But then I get a mental block! Any help is appreciated

Wheel Tire Vehicle Bicycle Automotive tire
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I suppose I assumed it was clear from the pictures. Were you able to view the photos?

The idea is an RC controlled snow thrower. I have two sabertooth motor drivers, and a standard 2.4GHz flight controller that will drive scooter motor for forward/reverse movement, the servo motor for steering, and a third motor for spinning the auger to throw the snow
Thank you very much @TeZla this is incredibly helpful. Just last night I was looking at pictures of the necks of electric scooters, the kind you stand on, as an option for how to connect the wheel to the main drive chassis, so to hear someone else describe this is a positive sign.

The idea of the gear and chain to drive the wheel is very impressive and I already have everything to make that happen I believe.

The control system is a sabertooth motor driver, and that does allow me to change polarity using a simple flight controller like the this one.

I agree with you the weight of the auger is defiantly a concern. I am not experienced enough in chassis work to visualize how that will end up being. I think once I put everything together I will realize where the pressure points are, and will have to make adjustments.

Finally I think as a pre-step to the auger; for example a simple snow shovel blade would be a good idea as long as it's easy to swap out with the auger. This would give me some confidence and forward momentum to continue the project.
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