Its weird. Its an intermittend issue. Sometimes it will do it, others it wont…I tried to update to the latest lightburn version earlier. and had many problems even connecting to the board. with the same settings.
Ill try again on the latest update and see if i have the same issues.
Hey @LightBurn,
The issue is still there, and its intermittent.
If i run the gcode straight from lightburn, it pauses for the first few mm of lines engraving.
If i save the gcode and run it from cncjs, it doesn’t pause at all.
I think this needs to be looked at internally.
The only way for me to debug this will be to get a Gerbil board and see what’s going on. It could just be that the controller is overloading at the start. Try this: Insert a G4 P0.5 command at the beginning of the GCode, and run that from LightBurn to see if that helps (that’s what I’m doing with Smoothiware clusters now). This gives the controller a chance to fill its buffers which helps when running fast rasters.
Nope that doesn’t make a difference. still pauses for the first few lines or so. Its intermittent, but only with lightburn. The gcode running from cncjs doesn’t have the problem.
I even tried G4 P5000 and it still doesn’t make a difference. Still stutters for the first few lines.
The stutter changes, could be 5lines. could be 15, could be 1 could be 0. It is never the same.
But after the stutter. it usually is perfectly fine.
Does that command actually pause the controller? If not, then it’s not working as it should. G4 P5000 should pause the controller for 5000 seconds, so if it doesn’t, then the command isn’t working, which is bizarre. According to the Gerbil website, it’s supported.
yes. it pauses and then 5 seconds later it runs. Sorry, i mean it doesn’t stop the stutter
Type $? into the console and tell me what it returns?
Ive tried many different things.
Checking chassis ground all good
Changing usb cable
changing driver boards
changing mini gerbil boards
slower speed
different laser settings.
the only thing that is known to work. is saving gcode and running in cncjs.
Ive also changed the board type to gerbil (grbl) from grbl m3 and i get the laser adjusting its power depending on speed which is nice, but still makes no difference.
The Mini gerbil board aparently connects using 230400, but whether i use that or 115200, it doesn’t make a difference either, and still connects no problem
Cncjs uses 115200 right now and its engraving perfect.
So i dont understand why different baud rates still connect fine.
$?
<Idle|MPos:0.000,0.000,0.000,0.000,0.000|Bf:15,252|FS:0,0>
[HLP:$$ $# $G $I $N $x=val $Nx=line $J=line $SLP $C $X $H ~ ! ? ctrl-x]
ok
and $$ returns
$$
$0=10
$1=255
$2=0
$3=1
$4=0
$5=1
$6=0
$7=0
(ATC M6, pulse/ff)
$8=100
(ATC Tool Td, milliseconds)
$9=100
(ATC M6 Td, milliseconds)
$10=31
$11=0.010
$12=0.002
$13=0
$19=0
(Softstart, milliseconds)
$20=0
$21=0
$22=1
$23=3
$24=2000.000
$25=2000.000
$26=250
$27=2.500
$28=5
(Spindle freq. 0 to 15)
$30=255
$31=0
$32=1
$100=78.000
(x:stp/mm)
$101=78.000
(y:stp/mm)
$102=160.000
(z:stp/mm)
$103=160.000
(a:stp/mm)
$104=160.000
(b:stp/mm)
$110=15000.000
(x:mm/min)
$111=12000.000
(y:mm/min)
$112=5000.000
(z:mm/min)
$113=5000.000
(a:mm/min)
$114=5000.000
(b:mm/min)
$120=5000.000
(x:mm/s^2)
$121=3000.000
(y:mm/s^2)
$122=3000.000
(z:mm/s^2)
$123=3000.000
(a:mm/s^2)
$124=3000.000
(b:mm/s^2)
$130=318.000
(x:mm max)
$131=205.000
(y:mm max)
$132=200.000
(z:mm max)
$133=200.000
(a:mm max)
$134=200.000
(b:mm max)
Not a massive deal at the moment, because after changing to gerbil (grbl), the altered laser power with speed has stopped the darker engraving section on those first few lines. They seem to match the rest of the lines with the power. But the stuttering is still bothering and would be good to sort it out eventually.
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.