Setting Laser to be Triggered by M67 and M68

AntimatterAnimals wrote: It seems like that’s what’s happening. The light areas of the image are really burning the wood no matter what I change the scale to (pwm scale and joint 2 scale) and the areas where it is supposed to be darker are producing a varied output as you’d want, just inverted (this does seem to be effected by the adjusted scale figures).

That looks like inverted PWM pin/values.
Not sure, but i think the version of dmap2gcode with that config does not output anything related to Z axis, so that is puzzling.

I’ll have a play around with inverting the pins tomorrow. I can’t remember what order I inverted them and I also can’t remember if I inverted more than one at a time so I’ll go one step at a time. Yeah it’s very strange. I’ll send some screenshots of the file in dmap2gcode and then a video of my machine when I get a chance.

My config should have normal pwm on pin 2 and inverted on pin 3

Hi Tom

I have updated my plasma table with a chinese ttl laser and follow your threats about M67 so i copy paste and ajust my hal with these lines:
loadrt pwmgen output_type=0
addf pwmgen.make-pulses base-thread
addf pwmgen.update servo-thread
setp pwmgen.0.enable TRUE
net analogout motion.analog-out-00 => pwmgen.0.value
net laserpwm pwmgen.0.pwm => parport.0.pin-02-out

I don´t know how but now if i open linuxcnc and simple load file to raster engrave a image the laser doesn´t turn on.
If i set S command to for example S65, then load file and all runs well being the laser in a range of 0 to 65.
During this the S values are not updated but the result is like should be.

What could i do wrong? can you or anybody help?
thank you in advance

I'm running 2.9 with gmocappyfor laser 

Threats ??? Oh, threads!
Do you have a running base period or base thread?
Are you actually using a parallel port?
Is the port loaded?
Or just upload the hal and ini files here so we can have a look.

Hi again Tom
Base period or base thread? i simply don´t know, sorry.

• Yes i'm using parallel port and loaded
• After messing around, i return to a point now that laser don´t stop between movements, in one point i was almost there but then didn´t backup hal file....  
• Atachments here.

 

The attached file has everything spindle but nothing laser, wrong file?

Sorry Tom
Wrong filesHere are the correct ones.

Remove all this This is still active and taking control of the PWM, so it has to go.

Hi Tom
Very thanks!
I will try right now.

When you guys pass by Portugal you are welcome!!!