Hi @Karl Clarke
I am trying to get the Trim Pointers to work and seeing odd behavior when I test both of them in MobiFlight. I followed @Ede Banatzke instructions in this post.
If I have 1 motor connected, the stepper moves as expected. When both motors are connected the movement is not smooth. My connections are as follows:

This is what happens when both motors are connected to TB6600.
Here it is with wiring still connected to TB6600 but only 1 stepper is connected. It is smooth as I would expect. This has me stumped.
Hello Folks...
I am struggling to get trim needle steppers to work.
I connected as per the drawings hovewer i found that stepper heats a lot and when testing it turns only in one direction. I connected only one stepper for testing purpose and i use 12v power supply.
I observed also strange noise in the stepper while it doesnt move
Captain, we need more power to the dylithium crystals! Are you using 12v or 24v?