drill bike

[zip22]

http://www.munkeyworks.com/blarg.html

crazy, must be very hard to steer.

[FireTeamCharlie]

Cool, but I dont think a drill would have have the power to take somene up hill.

[Hal Hardy]

"The flexing of the brace also makes an automatic
transmission. As the drill spins faster the chain
jumps to larger chain rings."

I wonder if he built it to flex on purpose knowing it would jump cogs or if it was a surprise and he thought, "Cool, an auto tranny."

[Alloy Addict]

I hope he has a lot of cordless drills laying around. I think he's going to be going through a few.

[FlatTop]

I wonder how a car starter motor and a motorcycle 12 volt battery would work? Starters have excellent torque, and the new compact ones using rare-earth magnets and reduction gears are pretty small. It might be a good "hillclimber" motor.

[cuda2k]

I wonder how a car starter motor and a motorcycle 12 volt battery would work? Starters have excellent torque, and the new compact ones using rare-earth magnets and reduction gears are pretty small. It might be a good "hillclimber" motor.

Starters are meant to be run for a few seconds at a time, not continually for minutes (let alone hours) on end. In grade school, I was part of a project that attempted to use a starter motor to move a small wooden go-cart kind of thing. We melted 5 starters within 3 days of building.

[jeff-o]

The best electric motor for a bike is still the hub motor. Nothing that I have found matches the performance/size of a hub motor.