How to set different scale for motors connected same Thorlabs controller

[James-ZWu]

I am using PyLabLib to control my Thorlabs controller which has 3 channels, each channel is connected to 3 different motors.
I want to set different scales for different motors.

However, I can only create one KinesisMotor instance for each controller, and the constructor takes one scale. How can I set different scale for different motors connected to same controller.

[AlexShkarin]

Hi!

Unfortunately, there is no option for this right now; I've never used multi-axis Kinesis devices myself, so it never crossed my mind. I'll try to add it in the next release. In the meantime, there is always a workaround of using the raw scale for the device and applying the scale manually when calling the methods. After all, all that the scale does under the hood is multiplying the numbers sent to Thorlabs devices and dividing the returned values. You can find the appropriate coefficient in the Thorlabs APT protocol, pages 39-41.