I am building a robot 7kg in weight to be driven on flat surfaces
supported by two 40mm Diameter central wheels, castor wheels front and back.
By my calculations a 6v Geared Motor producing 20 kg.cm Torque and 50 plus RPM at the output shaft, should do the job, if so which motor should i choose?
Also will require 2 channel electronic speed controller to assist in driving the Robot.
Using a Spektrum DX6i as the transmitter, will need a receiver compatible to the transmitter.
I’d take a look at this motor: 172:1 Metal Gearmotor 25Dx56L mm HP | POLOLU-1577 | Core Electronics Australia
At no load it’s able to output 57RPM @420 mA and stalled it’s pushing 27 kg⋅cm @ 6.0 A
The type of reciever you pickup will dictate the driver/controller you are able to use, we stock this motor controller which takes a PPM signal (not to be mistaken for PWM). If you have queries regarding compatability feel free to reply
In regards to the receiver, I’d check out PhaserFPV(really good for RC parts)!
Will keep in touch, Robert
To increase the RPM to say 70 -100 which inevitably will decrease the Torque.