I'm working on a gift for the wife for Christmas - an electric bobbin winder (a winding machine/spooling machine) - which will work in the same way as this machine:
It winds yarn on spools, and you control the rotational speed using a pedal. My idea for the motor and control setup is as follows:
- Brushless motor for durability and low noise
- Brushless motor is connected to an ESC (electronic speed controller)
- Electronic speed controller is connected to power supply AND an analog servo tester
- I utilize the potentiometer on the servo tester, for speed control of the brushless motor.
The motor will have to run smoothly on low RPMs ( < 15 rpm) as well as high RPMs (~5000 rpm).
- What should be the specs on the motor - will more poles be better? (i.e. 24n22p is better than 14n12p?) Should it be sensored?
- Will a setup as described, using a servo tester, be able to run the motor on low RPMs ( <15 rpm)? Or do low-RPM running of motor require different type of controller unit? (i.e. arduino, raspberry pi, ...)