When I press the frame button, the laser head moves to outline the part shape as expected. When I press “Shift plus Frame” the laser fires on low power but moves to the center of the part and then hits the side rail. I am running an Atomstack A70 Pro Max.
Thank you for reporting this. It’s very interesting.
In LightBurn, in the Console Window, Enable ‘Show all’ in the bottom right corner.
Return to the Laser window, repeat both the Frame and the “Shift plus Frame”.
The commands sent to the laser engraver should now be shown in the Console Window.
Select and copy (Ctrl C) that text, and Paste (Ctrl V) it into a reply here.
That should show the laser being enabled on low power (or not enabled), and any difference in commanded motion between the two framing commands.
The motion shouldn’t be different and I’m looking forward to seeing what’s happening here.
1 Like
Project loaded in 1 milliseconds
<Idle|MPos:0.000,0.000,0.000|FS:0,0|APP:55|USB:0>
ok
Starting stream
Stream completed in 0:00
<Idle|MPos:0.000,0.000,0.000|FS:0,0|APP:55|USB:0>
ok
Starting stream
[MSG:right offset:0]
[MSG:left offset :0]
ALARM:1
Hard limit triggered. Machine position is likely lost due to sudden and immediate halt. Re-homing is highly recommended.
On or near line 1:
Stream completed in 0:19
[MSG:alarmCodeCodeIntHandle:1
]
ok
Grbl 16AAS11A0064-AB-V1.01 [‘$’ for help]
Your Grbl may not support Variable Power mode (M4)
If your laser does not turn off between cuts,
switch to the GRBL-M3 device
[MSG:Check limits]
[MSG:Check X Limits]
[MSG:‘$H’|‘$X’ to unlock]
[MSG:Caution: Unlocked]
ok
[MSG:PreviousPage:1
]
Grbl 16AAS11A0064-AB-V1.01 [‘$’ for help]
My machine was working until this happened.
Sorry, show all wasn’t enabled
Starting stream
G00 G17 G40 G20 G54
G91
G0 X1.0236Y0.8311
M3
G1 Y9.7748S5.6F590.551
G1 X23.0496
G1 Y-9.7748
G1 X-23.0496
M5
G0 X-1.0236Y-0.8311
G0
G90
[MSG:right offset:0]
[MSG:left offset :0]
ALARM:1
Hard limit triggered. Machine position is likely lost due to sudden and immediate halt. Re-homing is highly recommended.
On or near line 1:
Stream completed in 0:10
[MSG:alarmCodeCodeIntHandle:1
]
ok
Grbl 16AAS11A0064-AB-V1.01 [‘$’ for help]
[MSG:Check limits]
[MSG:Check X Limits]
[MSG:‘$H’|‘$X’ to unlock]
$X
[MSG:Caution: Unlocked]
ok
Grbl 16AAS11A0064-AB-V1.01 [‘$’ for help]
If you do Frame twice, do you get the same Alarm notice?
Frame does not give an alarm, but Shift plus Frame gives the same alarm.
Here are all the commands with my added notes:
Project loaded in 1 milliseconds (LOADED PROJECT)
ok
$H (HOMED)
ok
?
<Idle|MPos:0.000,0.000,0.000|FS:0,0|APP:55|USB:0>
ok
Starting stream (START FRAME)
G00 G17 G40 G20 G54
G91
G0 X1.0236Y0.8311
G1 Y9.7748S0F236.22
G1 X23.0496
G1 Y-9.7748
G1 X-23.0496
G0 X-1.0236Y-0.8311
G90
Stream completed in 0:00 (END FRAME)
?
<Idle|MPos:0.000,0.000,0.000|FS:0,0|Ov:100,100,100|APP:55|USB:0> (DIFFERENT 3 100’S)
ok
Starting stream (START SHIFT PLUS FRAME)
G00 G17 G40 G20 G54
G91
G0 X1.0236Y0.8311
M3 (M3 MAYBE LASER AT LOW POWER)
G1 Y9.7748S5.6F236.22
G1 X23.0496
G1 Y-9.7748
G1 X-23.0496
M5 (M5 ?)
G0 X-1.0236Y-0.8311
G0 (EXTRA G0)
G90
[MSG:right offset:0] (LASER HEAD HITS SIDE RAIL)
[MSG:left offset :0]
ALARM:3
Reset while in motion. Grbl cannot guarantee position. Lost steps are likely. Re-homing is highly recommended.
On or near line 1:
[MSG:alarmCodeCodeIntHandle:3
On or near line 1:
]
On or near line 1:
Stream completed in 0:19
Grbl 16AAS11A0064-AB-V1.01 [‘$’ for help]
Your Grbl may not support Variable Power mode (M4)
If your laser does not turn off between cuts,
switch to the GRBL-M3 device
[MSG:Check limits]
[MSG:Check X Limits]
[MSG:‘$H’|‘$X’ to unlock]
$X
[MSG:Caution: Unlocked]
ok
1 Like
Perfect!! Thanks!
This looks like a machine offset. Probably a good idea to check.
From the Console Window in LightBurn, and with the Atomstack A70 engraver connected, enter the following report request,
$#
Then press Enter.
This should report any workspace offsets.
Please Select and copy the text from this report and paste that information into a reply here.
I see G20 issued in the setup line, this means that you’re sending measurements in Inches to the Laser.
Most still follow this standard, but some newer GRBL versions are removing inches from the working units. I can’t recall seeing this version before: Grbl 16AAS11A0064-AB-V1.01
- When the engraver is moving, does the framing operation outline a rectangle about 23" wide and about 9-3/4" tall?
If the laser is ignoring the inch units and using mm it will be less than 1/25th the size… about 1" wide and about 3/8" tall.
- When the laser hits the rails, does it crash near home or does it try to crash opposite home?
I hope it’s not attempting to move 100 inches in any direction. That could appear erratic.
The ALARM:3
On or near line 1: is warning me that the problem is ‘early on’
It might be as simple as cancelling an offset or turning off sending to the laser in inches.
Based on what we find out next, I’ll walk you through the next steps.
1 Like
I switched to mm and it’s working now. Everything was working until I upgraded to the latest version of Lightburn. The framing operation was outlining a rectangle of about 23" x 9-3/4". It was only when I pressed Shift-Frame or sent the run message that things went haywire. I suspect that Grbl 16AAS11A0064-AB-V1.01 may have been the number of an error message. Thanks for the recommendation to switch to mm. Who knew it could be so easy. Well, I guess you might have thought so. Again, Thanks.
1 Like
Grbl: Indicates the firmware type. 16AAS11A0064-AB: This is likely a unique identifier for the board or firmware build—possibly a serial number or internal version code from the manufacturer.
V1.01: Refers to the firmware version. In this case, it’s version 1.01 of Grbl
We often see upgrades or quirks in the Custom Grbl Builds.
The …On or near line 1 was the tell for me.
The open source versions of Grbl certainly seem to enjoy more user feedback, documentation, bug reporting and code sharing as part of the license requirement.