by ArtF » Sat May 17, 2025 4:19 pm
For anyone curious:
By the way, the motor is called a RollerCan , from m5 stack. I got a couple because they intrigued me, they are FOC motors, will run from 3.5vdc to 16VDC and even at 5 volts have a fair spring to them. It is CanBus or I2c controlled and the esp32 in the photo is just a bridge to my pc so I can send commands serially. In position mode they act like a spring, you can set the pid loop to any power for that spring, as it tries to move to commanded position. They also have speed and current modes, an encoder is built in. My thought was perhaps embedded in vanes for controlled kinetics where the spring locations and power change dynamically.
The planetary was an experiment to see just how much torque I could get from such a tiny low current motor, while it has 16 watts of power if connected to a power supply, mine is currently running just on the ESP32's 5 volt output at about 100ma, so .5 watts of power, yet it turns a 50:1 planetary just fine.. I accidently used the esp32's 3.5volt at first, and it worked fine there as well. Go figure..
Art
For anyone curious:
By the way, the motor is called a RollerCan , from m5 stack. I got a couple because they intrigued me, they are FOC motors, will run from 3.5vdc to 16VDC and even at 5 volts have a fair spring to them. It is CanBus or I2c controlled and the esp32 in the photo is just a bridge to my pc so I can send commands serially. In position mode they act like a spring, you can set the pid loop to any power for that spring, as it tries to move to commanded position. They also have speed and current modes, an encoder is built in. My thought was perhaps embedded in vanes for controlled kinetics where the spring locations and power change dynamically.
The planetary was an experiment to see just how much torque I could get from such a tiny low current motor, while it has 16 watts of power if connected to a power supply, mine is currently running just on the ESP32's 5 volt output at about 100ma, so .5 watts of power, yet it turns a 50:1 planetary just fine.. I accidently used the esp32's 3.5volt at first, and it worked fine there as well. Go figure..
Art