Hi all I suspect my issue has been addressed somewhere,

CAD & CAM Tool Chain LaserWeb/CNCWeb
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1

Hi all
I suspect my issue has been addressed somewhere, but I’m unable to find the answer so far.
I’ve got myself an aliexpress 5.5w diode laser cutter/engraver.

flashed the nano firmware up to grbl 1.1f, but when I try to cut a dfx file, the green lines (which I believe are supposed to be low power) are being cut the same as the red gcode lines.

Any suggestions?

2

Check this:

  • Check your GRBL is in LaserMode ($32=1)
  • Settings->Machine Profile, choose GRBL, apply.
  • Settings->GCODE… drop any M3 on Gcode Start (should be none as you applied the GRBL profile), Then put M3 on ‘Tool On’ and M5 on ‘Tool Off’.
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@Jorge_Robles
*Settings=> GCODE
change M4 to M3 ?!
and i have nothing write on tool On Or Tool Off … i must write ?!

4

Only M3 on tool On

5

@Jorge_Robles
i Men in this Photo … explain More
There anything Need to change !! thnx

4436298b8fc60539ae757800d5f79d3d.png
4436298b8fc60539ae757800d5f79d3d.png646×694 31.2 KB

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LOL… I’ve put clearly on third line "put M3 on ‘Tool On’ and M5 on ‘Tool Off’. "

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@Jorge_Robles
Lol :slight_smile:
Ok thnx :slight_smile:

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@Jorge_Robles ​ why do we need M3 and M5 ? Isn’t Laser mode taking care of that by using G0 and G1?

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@Ariel_Yahni_UniKpty , true, just throw up from my mind. Sorry :smiley:

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Thanks one an all for the advice. Cuts like a champion now!
I seem to be able to get away with ~10% power to cut paper which is rather nice. Would much rather drive the laser at lower power.