Jtech Laser, Masso - won't turn on through controller but will run from gcode

I have a Masso controller and a Jtech laser. I can’t get the Masso to turn the laser on manually with any power level through the Masso controller.

However, if I load a gcode file into the Masso for the laser, it works just fine.

The trouble is, I can’t set an x and y zero precisely because I can’t turn the laser on with low power to set it.

Clearly everything is set up correctly because I can run jobs with the laser just fine. But if I give it a sXX m3 command, the yellow laser button comes on, the controller states that the laser is on, but I get nothing.

This is a new problem. With no changes to wiring or configuration, I was using the laser without issue for the past several years.

Any suggestions?

I know this is an old post but hopefully can help someone out with a similar issue

I just upgraded to 5.13 and am having the same issue with m3 & the GUI “laser” button not firing the laser manually when in tool 111. Reading a bit on masso’s site m4 is listed to “laser on immediate” while m3 fires “laser output enabled with motion” I’m guessing this changed between my last version (5.10 I think) and 5.13

The odd thing is the laser on button must still be using an m3 because it highlights but does not turn the laser on till there is x-y movement (apparently via g-code as jogging it with an m3 on does not seem to turn it on either)

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Thank you. This allowed me to get my new laser to work from Masso MDI as the M3 command wouldn’t work even with putting a G1 in front of the line. M4 works.

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