How to mount a wheel to a weed eater engine (direct drive) when building an r/c car? Answered
I want to use a weed eater engine to make a fast r/c car. I have already stripped the engine down to it's basic components (removed all the plastic leaving only the bare engine) to make it easier to mount to a to the vehicle.
I pulled an 8" pneumatic wheel off of a Razor electric scooter which i plan to somehow mount to the clutch system of the engine.The idea is to have a direct drive system to cut down on the complexity of a chain drive (I have the chain drive off of the electric scooter). To do this I'm thinking of bolting the wheel (which has 3 treads that previously mounted the sprocket to the wheel) directly to the bell of the clutch (the part that the clutch engages at a certain rpm and connects to the engine to the driveshaft of the weed eater). Is this a good idea or is the bell not strong enough to bolt a wheel to?
For those of you who don't know what the bell is that I am referring to: http://i1.ytimg.com/vi/6FcFkbxhAXU/hqdefault.jpg
Once I have the wheel mounted (it will have a single rear wheel), I will use the front end of a spare r/c car for the steering and the drive motor to pull the throttle cable on the engine. This will probably be mounted to a plywood base.
Ideally, the best option would be to have servos hooked up to an Arduino controller to control the steering and throttle, but a WiFi Arduino ($80) (could I substitute it for a Raspberry Pi?) + 2 servos ($30) is outside of my price range.
What do you guys think of my design? Any suggestions?