All of sudden everything stopped working

SkipCam · March 1, 2024, 10:14pm

I’m not sure where to post this but here goes. I have an Ultrabot U20 20w laser. Everything was working fine until today. I used it yesterday to make a slate project and didn’t have any trouble. I tried to do another slate project today and things went sideways. I centered the laser on the slate, which is the same thickness as yesterday’s piece and even reset the height. I tried moving it a little to get it better centered when all of a sudden the whole thing started chattering loudly and moving in a jerking motion. I hit the kill switch, shut it off and turned it back on. It didn’t want to home at all and I had to manually push the gantry to the home position. When I told it to home again I started getting Error 8 and Error 9 messages. I checked the wiring and everything looks OK. I tried changing the setting for $27 to 1.5 and 2. Still no luck. I get movement on the Y access when I tell it to move but nothing on the X axis. I bumped $27 up to 5 and it showed up in red on the console. Shut everything down again including restarting my computer and nothing changes. Ultrabot provided zero information for an owner’s manual so I don’t know if it’s a software problem or hardware problem. Is there any command to reset everything back to factory defaults? Any help would be greatly appreciated!!! Here’s what my console screen is showing:
[V4.00(8M.H35.20230313)]

[VER:1.1h.2023031301:]

[OPT:VMPH,63,256]

Target buffer size found

[MSG:Using machine:MKS DLC32]

[MSG:Mode=AP:SSDI=MKS_DLC16487:IP=192.168.4.1:MAC=72-04-1D-AF-67-40]

ok

Homing

ALARM:8

Homing fail. Cycle failed to clear limit switch when pulling off. Try increasing pull-off setting or check wiring.

ok

Grbl 1.1h [‘$’ for help]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]

ok

Grbl 1.1h [‘$’ for help]

ALARM:1

Hard limit triggered. Machine position is likely lost due to sudden and immediate halt. Re-homing is highly recommended.

[MSG:Caution: Unlocked]

ALARM:8

Homing fail. Cycle failed to clear limit switch when pulling off. Try increasing pull-off setting or check wiring.

ok

Grbl 1.1h [‘$’ for help]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]

ok

ok

Starting stream

[MSG:Program End]

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 0:

Stream completed in 0:00

Grbl 1.1h [‘$’ for help]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]

ok

Starting stream

[MSG:Program End]

Stream completed in 0:00

ok

Starting stream

[MSG:Program End]

Stream completed in 0:00

ok

Starting stream

[MSG:Program End]

Stream completed in 0:00

ok

Starting stream

[MSG:Program End]

Stream completed in 0:00

ok

Starting stream

[MSG:Program End]

Stream completed in 0:00

ok

Starting stream

[MSG:Program End]

Stream completed in 0:00

ALARM:8

Homing fail. Cycle failed to clear limit switch when pulling off. Try increasing pull-off setting or check wiring.

ok

Grbl 1.1h [‘$’ for help]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]

ok

$

[HLP:$$ $+ $# $S $L $G $I $N $x=val $Nx=line $J=line $SLP $C $X $H $F $E=err ~ ! ? ctrl-x]

ok

berainlb · March 2, 2024, 3:35am

Do a mechanical review of your system. Check belt tension, check that pinion gears are properly secured. It’s likely that the belts are somehow losing motion.

BradfromMass · March 2, 2024, 3:55am

You might have a bad limit switch. You might also try to slowly move the module along both x and y axis to towards the center, restart both your machine and lightburn and try to home again. Its not a good idea to re-home a laser if you manually move to the home position. Not that it will break or anything, but you might keep getting errors as it does need some space to home or hard limit errors occur.

1Vince · March 2, 2024, 3:05pm

My Ortur does that when I have a loose electrical connection.

SkipCam · March 2, 2024, 5:11pm

I checked all the wiring and it all looks to be properly connected. When I use a move command in the X axis I can hear something hum but nothing happens. I increased the pull off to 4 but that doesn’t seem to make any difference.
Here’s all my settings:
$54=12345678

$53=MKS_DLC

$52=12345678

$51=MKS_DLC

$0=10

$1=25

$2=1

$3=3

$4=0

$5=1

$6=0

$10=1

$11=0.010

$12=0.002

$13=0

$20=0

$21=1

$22=1

$23=3

$24=300.000

$25=1000.000

$26=250.000

$27=4.000

$28=1000.000

$30=1000.000

$31=0.000

$32=1

$41=1

$47=1

$46=1

$102=100

$101=100

$45=0

$44=0

$43=0

$42=0

$50=1

$40=1

$100=100.000

$103=100.000

$104=100.000

$105=100.000

$110=6000.000

$111=6000.000

$112=6000.000

$113=1000.000

$114=1000.000

$115=1000.000

$120=500.000

$121=500.000

$122=500.000

$123=200.000

$124=200.000

$125=200.000

$130=420.000

$131=400.000

$132=50.000

$133=300.000

$134=300.000

$135=300.000

berainlb · March 2, 2024, 5:47pm

Did you do a mechanical review?

SkipCam · March 2, 2024, 6:18pm

Never mind…boy is my face red. Apparently the allen screw that holds the cover over the lens worked loose and fell out. When that happened while the gantry was moving, the the cover dropped down and caught the base shifting towards the front of the entire unit and hit the Y1/Y2 switched bumping it from Y2 to Y1. I switched it back, found the little allen screw which I reinstalled very tightly and it works now.