- Joined
- Jun 2, 2008
- Messages
- 2,176
- Reaction score
- 228
- Points
- 78
- Location
- Valmorea
- Website
- www.fabri91.eu
So what's one to do with a 3D printer and confined at home?
Well, convert an old nitro RC car to run on a quadcopter motor made for 11-or-so inch props.
The original RC car:
Electric motor:
Since I'm using an ESC more suited for airplanes/quadcopters (and possibly also due to the type of motor used) it cannot move reliably at too low speeds, so for now I've decided to keep the centrifugal clutch.
Which, since both the nitro engine and the brushless motor have an M6-threaded output shaft, fits perefectly and is a convenient way to mount the output gear anyway:
First run on a bench:
Finally, first roll on it's own power:
[ame="https://www.youtube.com/watch?v=wzAu-XvMExw"]Quacopter BLDC conversion - P190 Chassis - first roll - YouTube[/ame]
Things to improve:
Well, convert an old nitro RC car to run on a quadcopter motor made for 11-or-so inch props.
The original RC car:
Electric motor:
Since I'm using an ESC more suited for airplanes/quadcopters (and possibly also due to the type of motor used) it cannot move reliably at too low speeds, so for now I've decided to keep the centrifugal clutch.
Which, since both the nitro engine and the brushless motor have an M6-threaded output shaft, fits perefectly and is a convenient way to mount the output gear anyway:
First run on a bench:
Finally, first roll on it's own power:
[ame="https://www.youtube.com/watch?v=wzAu-XvMExw"]Quacopter BLDC conversion - P190 Chassis - first roll - YouTube[/ame]
Things to improve:
- Clutch bites at too high RPM (approx. 1/2 throttle) - should be possible to remove the closing spring on the clutch since the motor doesn't have to "idle"
- Add Arduino controller to account for the need to retain the throttle/brake servo to actuate the mechanical brake
- Most likely add control from bluetooth via phone since I do not want to dedicate a remote/buy a receiver to this "concept"
- Lower the shift point of the two-gear transmission to enable a shift to second gear?