i´m new to this forum, but due to the fact that all the threads during the last couple of days came realy handy to set up my laser i thought i might make myself an account.
I recently got an unbranded chinese.5.5W diode laser, with a board that looks like the ones build in the eleksmaker lasers aswell. It has a arduino nano wich i flashed with the grbl 1.1 firmware.
I realy like the lightburn software, but since yesterday my low light fire button is burning at 100% all the time i press fire no matter what value i type in.
Is that problem common? Does anyone have a solution or an idea on that?
$30 is “what is the highest number the software will send me” for power. By setting it to 1, if the software sends 1 or higher, your laser will be on 100% - you basically have on / off control and nothing else. Change that to 1000 (the GRBL default) and make sure the S-Value Max setting in the device settings in LightBurn is also that same value (1000).
Those are why. If you have asked LightBurn to run your design any faster than 500mm/minute, which is the setting in your firmware for the maximum allowed speed, the controller will lower the power output because it can’t go the speed you requested.
Your settings for $120 and $121 (acceleration) are also very low, and I suspect your machine is not 200mm x 200mm either ($130 & $131).
well that explains a lot,
I already tried to get into the Grbl Wiki, but due to the fact that I´m new to this topic I was quite lost with setting up the maschine.
Thanks for the tips with the $110 and $111, I was already worried that the maschine cant go any faster than that.
do you have any suggestestions for max speed, or is it more a finding out by try and error?
Also I dont know wich value for the acceleration would be suitable
The maschines frame limits the size to 610x510mm
my Grbl settings now look like this and its getting better
Trial and error is really it - Run a frame around a decent sized square, then double the max speed and the acceleration and do it again. At some point, the motors will buzz because you’ve gone too fast. Cut both settings by half, and then do just one at a time from there, going up about 50% with each test, and when you hit the limit, go back.
I´d like to support your work, and mine aswell, by purchasing a software licence. For my nano arduino i need the Gcode licence, right?
thanks a lot again