chinese laser, black box, initially i was able to use the laser, but now when i switch on it wont burn a fly. but if i turn on the spindle at a % i can get it to burn. Im confused as it was working. is there a grbl setting ive missed. Seems if the laser turned on via the spindle controlit works. but not as a laser. wiring is corect and working . Dave
Look at $30 and compare that to the S values in your gcode For example M3 S255 but $30=1000 will be about 25% If $30=1000, you want S1000 to get 100% Or other way round, if your 100% setting spits out S255, then set $32=255 Have a read through the whole Grbl Wiki sometime it is gold!
Thanks Peter, ive got to try and digets that first! new to gcode. I still dont understand as it was working. Anyway I will investigate. I even reset my eprom, re installes control software etc. its the second time its happened, last time i just reinstalled everything and it worked. But not this time. Dave
hi peter, i changed my spindle speed down to 1000 in my grbl settings and now the laser is working ok. Dave
