This is a feasibility study and not a finished Product. I am trying to balance power requirements with acceptable dive times. I am testing a NEMA11 stepper motor with the POLOLU controller, Tic T500.
Advantages of an open loop stepper motor over a brushed or brushless DC motor:
Programmable parameters:
Acceleration Rate (ramp up, down)
Start velocity (torque is inversely proportional to speed)
Maximum velocity
As a result, these values can be fine-tuned resulting in no jerk on startup and piston “stiction” is more easily overcome.
Advantages of an open loop stepper motor over a brushed or brushless DC motor:
Programmable parameters:
Acceleration Rate (ramp up, down)
Start velocity (torque is inversely proportional to speed)
Maximum velocity
As a result, these values can be fine-tuned resulting in no jerk on startup and piston “stiction” is more easily overcome.
Attached Files