[george4657]

Travel rate depends on 3 things.
- steps per revolution of stepper motor. Both yours are 200 per revolution( .9 comes from half stepping)
- steps of driver, both are using the same as this comes from the driver
- pitch of the drive screw on the machine. It looks like your laser is 5 times greater than your router.
You need to change the steps per inch number in Mach under config -> motor tuning to mach your laser.
I believe you can set up two profiles, one for each machine but I have not done it so you will need to look it up in the manual.

The other problem is that the current required by your Nema 17 may be far less than your Nema 23. If it is you are going to burn out your steppers unless you changed the current setting of your controller.

George

[Thomas T]

Thanks George. It works fine. Changed the "steps per..." settings 5 times less and the travel distance is now right.
However the motors are getting hot after a few minutes. I need to constantly monitor them and eventually turn them off before
i fry them. Is there a way to change the current settings on CNC3020 or Mach3 Mill? I need to find a temporary solution. The thing is bought a blue board from ebay but shipping takes forever from China usually a month...

Travel rate depends on 3 things.
- steps per revolution of stepper motor. Both yours are 200 per revolution( .9 comes from half stepping)
- steps of driver, both are using the same as this comes from the driver
- pitch of the drive screw on the machine. It looks like your laser is 5 times greater than your router.
You need to change the steps per inch number in Mach under config -> motor tuning to mach your laser.
I believe you can set up two profiles, one for each machine but I have not done it so you will need to look it up in the manual.

The other problem is that the current required by your Nema 17 may be far less than your Nema 23. If it is you are going to burn out your steppers unless you changed the current setting of your controller.

George

[herby08]

Hi Thomas
yes you need to set the current on the driver to the lowest because nema 17 motor can only take max 1.5A.
greetings
waltfl