Is the version, probably compiled on 6/6/21015
Might have to go looking for a grbl upgrade.
In Lightburn can you go to ‘Edit → Machine Settings’ and see what you get?
You need to save your configuration before you change it out. You can do that with the ‘save’ button in the Machine Settings.
Well, you’ve already proven it’s a Benbox firmware.
There are a few ways you can update the firmware. The easiest is probably to use laserGRBL.
Some information is here:
Flashing Grbl Firmware – LaserGRBL
Essentially, open laserGRBL. Go to Tools->Flash GRBL Firmware.
Pick Arduino Nano as Target. And suggest you first try v1.1h custom firmware.
Keep in mind that this will require some post flashing setup. Minimally for work area if you want soft limits to work. Possibly also for homing direction.
Some things you’ll want to note before making this change:
Other resources for you:
How I can upgrade grbl in lightburn? my $32 disapered - LightBurn Software Questions [OFFICIAL] - LightBurn Software Forum
Arduino Based cheap laser engraver help please - Getting Started [Archived] - LightBurn Software Forum
Firmware for Benbox. Changing firmware to LaserGRBL and vice versa. - YouTube
These describe different ways of flashing and provide other context.
I didn’t notice the Benbox before. Sorry
This is what I found
There’s no Flash GRBL in tools
Doesn’t Home
Get Position brings up all 0.00
25.5 x19.5
I’ll check the resources you included
What part of the world are you in?
Not surprised that comes up blank. It uses the same mechanism as $$ to get the information and that didn’t work either.
laserGRBL is a different program entirely from LightBurn. It is also quite popular for laser burning and is free and open source. You can find it in the link I included.
Okay. That could make this simpler although you still want to get the configuration correct.
I’m in SE part of the US. You?
I thought the benbox firmware wasn’t supported. Seems I remembered reading this a while back…
I think they upgraded the firmware to grbl.
I’m outside Vancouver BC Canada
It’s just above freezing right Now
The link below shows how to use T2laser to load the firmware. Since T2laser worked I loaded its default 1.1e
I figured it Might work, It did
Of course now it won’t fire again, and I can’t remove it. lol I’ll reinstall Lightburn if need be.
I made some adjustments… Of course I forgot what they were now
But Now it Works 
Except the Fire button doesn’t work 
And yes I made sure it was enabled. lol
One funny thing, before I installed the firmware the stepper motors would hum/vibrate, now they do just for a second then they’re quiet
A little focus and (Fire button would help)
You really want to be on a firmware 1.1f or higher. From the T2Laser list not sure of all the options but your best best is the 1.1f High Freq PWM.
Once you do that, switch your device type to GRBL instead of GRBL-M3.
I have no idea
just what I heard in the video
That’s Good to know
Thank you
Ok… I loaded 1.1f High Freq PWM and changed to GRBL and still the same No fire with fire button. Yes I reenabled
Not sure where to go from here!
Can you take a full screenshot of LB?
Also, please run these commands in console:
$I
$$
Screenshot after load
$I
$$ output after pic
Waiting for connection…
Waiting for connection…
Grbl 1.1f [’$’ for help]
ok
[VER:1.1f.20170131:]
[OPT:VZL,15,128]
Target buffer size found
ok
ok
ok
ok
ok
ok
$I
[VER:1.1f.20170131:]
[OPT:VZL,15,128]
Target buffer size found
ok
$$
$0=10
$1=25
$2=0
$3=0
$4=0
$5=0
$6=0
$10=1
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=0
$23=0
$24=100.000
$25=1000.000
$26=250
$27=1.000
$30=255
$31=0
$32=1
$100=80.000
$101=80.000
$102=80.000
$110=4000.000
$111=4000.000
$112=6000.000
$120=800.000
$121=800.000
$122=5000.000
$130=400.000
$131=300.000
$132=200.000
ok
Go to Device Settings and set S Value Max to equal 255 so that it matches $30=255.
Can you take a screenshot of the Move window with the Fire button?
$20 is used to enable soft-limits. It’s up to you if you want to use this. This can prevent crashes if setup properly.
$130, $131 set X and Y size of your engraving area respectively in millimeters. These will need to be setup for the soft-limits to work.
This should match the dimensions you enter for LB workspace size (again in millimeters). They should all be in agreement but determined by your physical dimensions.
Since your system doesn’t have limit switches and setup to home it should be assigning 0,0 to wherever the laser head is at startup. As part of your startup procedure have the head be at front left.
Ok
Don’t think I completely understand soft limits or how to set up and how much do I need them.
Soft limits… I think is when it gets to the end (limit switch would stop it) soft limits stop it a little earlier
This morning I was moving it around and it seamed to know its limits(it would either stop just before or at the end, if I hit the go button (move to position set at x0 and y0) it would go to the front left(later I changed Something, (I don’t remember) it would go to the back right)) then moved it with the x and y arrows say 5 inches then moved it back 1/2 " in both by hand, when I hit the go button again it would hit the end and try to go further(vibrate)
I hope that made sense
Work area $130=400 and $131=300 don’t look the same
This is probably for another thread (I haven’t checked the forum for that yet)… I tried to burn txt It would go to position, the laser would lite but wouldn’t burn!
Haha. You’ve perfectly obscured the fire button which is what I was interested in seeing. Can you take another screenshot with Fire button visible?
LightBurn will limit some movement at the application level based on the size listed in Device Settings.
Sorting this out should be fairly straightforward.
$130=[X VALUE]$131=[Y VALUE]$20=1Can you confirm that you updated S Value Max to 255 in Device Settings? Doesn’t show that in your screenshot. Make sure you do this first or else you’ll have a bad time.
This is likely an issue of your cut settings. Power too low or speed too fast.