Starts the homing procedure for a open-loop stepper motor. Because open-loop steppers do not have any sensor feedback, they home by travelling backwards their maximum axis length in units of counts. This procedure ensures the stepper will start from a known position. Using this method often results in the axis running against the hardstop of the home position for some portion of the home procedure, causing a buzz. This sound is intentional and safe.

home_OL_stepper(self, axis: int, home_length: int, vel: int = 1000, accel: int = 50000)

axis: int

The axis of the open-loop stepper to home, [0, 7].

home_length: int

The maximum length of travel of the axis in units of counts. I.e., the number of counts of backwards travel to move in the worst-case scenario to ensure the axis reaches the home position.

vel: int, optional

Max velocity of the move in units of counts per second [0, 100000]. Values [0, 100] are interpreted as a percentage of the maximum velocity (100,000 cts/s). If the accel parameter is not given, the acceleration will be set to 10x the  velocity in units of cts/s². Note velocity scaling may occur, as explained in goto function description.

accel: int, optional

Constant acceleration of the axis to reach the given velocity, in units of counts per second² [0, 500000]. Values [0, 100] are interpreted as a percentage of the  maximum acceleration (500,000 cts/s²).