I didn’t see a section for ComMarker so I’m putting this here so people can find it. Using the XTOOL RA2 rotary with a ComMarker Fiber laser or Omni 1 UV laser requires changing the dip switches on the controller as otherwise it sends too many amps and will overheat the stepper motor on the rotary. Here’s a picture of my dip switches on my ComMarker B4 30Watt Fiber laser. I’ve been using them for over 3 years and in Lightburn I’m able to get the standard 12800 steps. I have tested this on my new Omni 1 and the XTOOL RA2 rotary works great. Change DIP switches at your own risk!
Switch 4 needs to be on, then with the laser off and the rotary connected, turn on the laser and quickly (1 second or less) flip switch 4 from OFF To ON back to OFF. this sets the electrical requirement for the stepper motor so it doesn’t overheat.
(Edited per @MattCaz Request) Switch 4 should be off then moved to on and back to off quickly.
Hi, I have a Commarker B4 20 watt with the external rotary driver. I just got the Omni 1 and would like to use the rotary with it. Does the Omni 1 have a built in rotary stepper driver, or do I need to use the external box that came with the B4 fiber laser? I wanted to use the RA2 pro with both of them. Thanks for your help.
I’m using the great XTOOL RA2 Rotary on my B4 30Watt and my brand new OMNI 1 5Watt. There’s a procedure you need to use and I’ve detailed it here in this thread above your post.
Using the XTOOL RA2 rotary with a ComMarker Fiber laser or Omni 1 UV laser requires changing the dip switches on the controller as otherwise it sends too many amps and will overheat the stepper motor on the rotary. Here’s a picture of my dip switches on my ComMarker B4 30Watt Fiber laser. I’ve been using them for over 3 years and in Lightburn I’m able to get the standard 12800 steps.
I just finished opening the OMNI 1 and changing the Dip switches to the following settings. Switch 4 has a special procedure to use. DO THIS AT YOUR OWN RISK.
Switches: 1 Up / 2&3 DOWN/ 5&6 DOWN / 7 UP / 8 DOWN/
Switch 4: with the laser powered off, connected the rotary and put Switch 4 UP, then when you turn the power to the laser on you need to move switch 4 DOWN and then UP within a second.. so very quickly to set the voltage correctly.
I just tested the Omni 1 with this setup and the steps are 12800 in Lightburn and it is spot on for full rotation and return.
