Hi
i am new in using mach3 in a laser cnc , and my question is : how can mach3 control the time of running the laser head ? if i want to run the laser for a specific time period then how can i control this period ?

thank you
waleed

:)
Hello , I have the same question
I already read,
that someone controls his laser with the pwm modulation
of the axis stepper in mach 2d mod.

I have a synrad 48-1
tickle freq 5khz
pulse length 1mikrosec +- 0,2 mikrosec
raise fall time <= 100ns 0,5v to 3,5V dc nominal is 5vDC

Can anybody explain how to control wtih mach3 or linkmotion software

I prefer mach3 because I already have it!

Thanks and best regards bjoern

Hi All,
Mach ---->can do only vector,can not do raster method.
Link motion----> can do both vector and raster method.
Laser, Mach can not engrave on material. It can only cut.
In another way, Link motion can do both engrave and cut on material.

Cheers,
Mongkol

that's ok mongkol , 2D cutting is all what we want with laser , but the question is still : how can we use mach3 for 2d cutting with laser ?

Can any one imagine to take the pwm control of the z-axis for using
as the power control of the laser.... and explain it here.
Perhaps a pic( microcontroler) will be useful but without it will be less
complicated.

thanks regards:)

I have no good knowedge at laser systems but i expect that the laser pwm controller comes with the laser head and not connected to the program .

at first i belive the same.
but after looking at this videos,i think its quite possible to use mach3 to do engraving.
YouTube - CNC laser ploter burns evil monkey
i have no idea how to do that.iam trying to contact the author.once i get some info,i'll sure do share.