Laser Button Doesn't toggle to mark edge and origin

I am Trying to set up a laser to align the work to the sheet in QTPlasmaC, however, it does not appear to be working properly. In the owners manual it says it should change to mark edge and then mark origin. it just changes to show it is turned on. What am I missing?

I forgot to mention that this is in QTPlasmaC

Did you make a custom user button for your Laser, or are you using the LASER button in the DRO box?

Is the DRO box the buttons added in settings, then yes. I just found that I need hal pin

qtplasmac.ext_laser_touchoff
I have to figure out where to put it and if it will work...

I am going to assume you made a custom button for your laser.  The LASER button in the DRO box is not shown until a offset is set, I reckon the user manual does not explicitly say that.  I'll mark it down to add it to the docs later.

Assuming you made the correct HAL connections

You need to use the peripheral offsets section to set the offset between the torch and the laser, and then the LASER button will appear. 

wels wrote:

Is the DRO box the buttons added in settings, then yes. I just found that I need hal pin

qtplasmac.ext_laser_touchoff
I have to figure out where to put it and if it will work...

That is not quite right. You just need to finish the following hal connection in either the <machine_name>.hal file or the <machine_name>_connections.hal file, I cant remember where it is off the top of my head.

Then do the peripheral offsets part and the LASER button will show.

That works! thanks for that little bit of advise. I could have saved myself the headache by asking right away.

Glad to help.  The user guide maybe needs a little clarification in this area. It's sometimes difficult to write user guides when you already know the process... 

Happy cutting.

To close the loop here, this commit (to the Master branch) clarifies when the LASER and CAMERA buttons become visible:

github.com/LinuxCNC/linuxcnc/commit/ce1e...442d1e9b634e2eb8c5a7