Home position reading as x:-600 y:-600

This is driving me crazy.
I have an Ortur Laser Master 2 Pro S2
Work area is 400x400
With the laser in the bottom left corner when I click “Get Position” in Lightburn it says x:-600 y:-600

I can’t move it anywhere because anything I do gives me an error message saying that the requested position is outside of the work area.

How do I reset the home position at x:0 y:0?

I have searched everywhere for an answer.

There has to be a way to put the laser at what should be x:0 y:0 and then tell Lightburn that the laser is now at x:0 y:0

What’s your history with this laser? Has this worked properly in the past?

The issue is likely caused by a work offset being configured but there may be a couple of different causes for it.

Can you run these commands in Console and return the full output:

$H
$I
$$
$#
?

I bought it used and it was working perfectly. I decided the 5.5w laser wasn’t enough power so I bought a Laser Tree 20w laser. Ever since I installed it I’ve had this problem.

Here is what shows up in the console when I power it up:

Waiting for connection…
Waiting for connection…
[ORIGIN: China]
[PRODUCER: ORTUR]
[AUTHOR: ORTUR]
[MODEL: Ortur Laser Master 2 Pro S2]
[OLF: 190]
[OLH: OLM_ESP_PRO_V1.2]
[SN: D2C2FB363123BC0B73C344DAA69EE8CC]
[OLM:GENERAL]
[DATE:17:14:34 - Nov 3 2022]
[VER:1.1f(ESP32).20210403:]
[OPT:VNMZHSL,35,7680,3]
Target buffer size found
ok
Homing
ALARM:9
Homing fail. Could not find limit switch within search distance. Defined as 1.5 * max_travel on search and 5 * pulloff on locate phases.
ok
Ortur Laser Master 2 Pro S2 Ready!
OLF:OLF 190.
OLH:OLM_ESP_PRO_V1.2.
OLM:GENERAL.
[MSG:Warning: Flame Sensor Disabled by User OverRide]
[MSG:Flame detector active,Ambient infrared value:27]
Grbl 1.1f [‘$’ for help]
[MSG:‘$H’|‘$X’ to unlock]
[MSG:Caution: Unlocked]
ok
<Idle|MPos:-600.000,-600.000,0.000|Bf:35,7679|FS:0,0|Pn:PX|CL:0,100|PS:2,1|ER:27,31|VA:24735,14|Ov:100,100,100|A:S>
ok

Here is what I got after inputting the commands you asked me to use:

$H
ALARM:9
Homing fail. Could not find limit switch within search distance. Defined as 1.5 * max_travel on search and 5 * pulloff on locate phases.
ok
Ortur Laser Master 2 Pro S2 Ready!
OLF:OLF 190.
OLH:OLM_ESP_PRO_V1.2.
OLM:GENERAL.
[MSG:Warning: Flame Sensor Disabled by User OverRide]
[MSG:Flame detector active,Ambient infrared value:11]
Grbl 1.1f [‘$’ for help]
[MSG:‘$H’|‘$X’ to unlock]
[MSG:Caution: Unlocked]
ok
$I
[ORIGIN: China]
[PRODUCER: ORTUR]
[AUTHOR: ORTUR]
[MODEL: Ortur Laser Master 2 Pro S2]
[OLF: 190]
[OLH: OLM_ESP_PRO_V1.2]
[SN: D2C2FB363123BC0B73C344DAA69EE8CC]
[OLM:GENERAL]
[DATE:17:14:34 - Nov 3 2022]
[VER:1.1f(ESP32).20210403:]
[OPT:VNMZHSL,35,7680,3]
Target buffer size found
ok
$$
$0=5.0
$1=100
$2=0
$3=6
$4=7
$5=7
$6=1
$10=2047
$11=0.050
$12=0.002
$13=0
$14=6
$15=0
$16=1
$17=4
$18=0
$19=0
$20=1
$21=1
$22=1
$23=7
$24=600.000
$25=3000.000
$26=100
$27=3.000
$28=0.100
$29=0.0
$30=1000.
$31=0.
$32=1
$33=1000.000
$34=0.000
$35=0.000
$36=100.000
$37=0
$39=1
$40=1
$41=0
$42=1
$43=1
$44=3
$45=0
$46=0
$56=1.000
$57=1800.000
$58=395.000
$59=6000.000
$60=0
$61=0
$62=0
$63=3
$64=1
$65=0
$100=80.000
$101=80.000
$102=2124.000
$110=10200.000
$111=10200.000
$112=600.000
$120=2200.000
$121=1800.000
$122=200.000
$130=400.000
$131=400.000
$132=100.000
$259=0
$260=70
$261=0
$262=400
$263=0
$264=0
$265=50
$266=100
$267=0
$268=0
$269=0
$270=5120
ok
$#
[G54:0.000,0.000,0.000]
[G55:0.000,0.000,0.000]
[G56:0.000,0.000,0.000]
[G57:0.000,0.000,0.000]
[G58:0.000,0.000,0.000]
[G59:0.000,0.000,0.000]
[G59.1:0.000,0.000,0.000]
[G59.2:0.000,0.000,0.000]
[G59.3:0.000,0.000,0.000]
[G28:0.000,0.000,0.000]
[G30:0.000,0.000,0.000]
[G59.6:0.000,0.000,0.000]
[G92:0.000,0.000,0.000]
[HOME:0.000,0.000,0.000:0]
[TLO:0.000]
[PRB:0.000,0.000,0.000:0]
ok
?
<Idle|MPos:-600.000,-600.000,0.000|Bf:35,7679|FS:0,0|Pn:PX|CL:0,100|PS:2,1|ER:27,34|VA:24745,11|Ov:100,100,100|A:S>
ok

Is your machine homing properly? When you turn on the machine, does the laser module move toward the front-left, actuate each X and Y switch, then back-off, reactuate both switches again, back-off, and come to a final stop?

It looks like the X-limit switch is either mis-wired or is being perpetually pressed. You can see that with the “Pn:PX” in the status line.

Review the geometry of the laser module. It may be sufficiently different from the original one where the X-axis limit switch is having difficulty getting actuated.

Did you touch any of the wiring other than swapping out the laser module?

Nailed it!

The new laser head is a lot bigger than the old one and I had to relocate the limit switches. I looked underneath the x-axis limit switch and found that I had pulled a wire loose. I had to cut it and solder in a little piece if wire to make it long enough, and now it works like a charm.

Thanks, I probably never would have noticed that if you hadn’t asked.

Glad you were able to isolate the issue and remedy it. Well done.

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