Help please. Shapes/lines are incomplete or aren't meeting at the end of the cut. Possible lightburn misconfiguration or axis drift

Good evening. I’m having an issue that I’m hoping someone has encountered.

Here’s a video of the problem: https://youtu.be/1z6FVLlcRU0
My lightburn file:
Stripesv2 Just Stripes.lbrn2 (34.1 KB)
My console output from trying a few solutions found in another thread:

Waiting for connection…
ok
ok
[ORIGIN:China]
[PRODUCER:ORTUR]
[AUTHOR:LEADIFFER]
[MODEL:Ortur Laser Master 3]
[OLF:210]
[OLH:OLM_ESP_PRO_V2.4B]
[OLM:GENERAL]
[DATE:20230223]
[SN:B4D87130E26DFC205E5803AACCBE73B2]
[VER:1.1f.20220325:]
[OPT:VNZHS+,63,131071,3,0]
Target buffer size found
[NEWOPT:ENUMS,RT+,HOME,NOPROBE,TC,SED,UD,CLU,WIFI,FTP,TMC=7,SD,ITG,GT,YRR]
[FIRMWARE:grblHAL]
[NVS STORAGE:*FLASH]
[DRIVER:ESP32-S2]
[DRIVER VERSION:220327]
[DRIVER OPTIONS:GIT-NOTFOUND]
[BOARD:Ortur Laser Master 3]
[TYPE:OLM3]
[CLUSTER:16]
Cluster size found
[WIFI MAC:84:F7:03:E6:88:E8]
[IP:192.168.1.240]
[NETCON:Telnet]
[PLUGIN:Power Detecter v1.0]
[PLUGIN:Power Control v1.0]
[PLUGIN:gyroscope sensor v1.0]
[PLUGIN:Trinamic v0.09]
[PLUGIN:SDCARD v1.05]
[PLUGIN:ITG STREAM v1.00]
[PLUGIN:ESP32 WebUI v0.03]
[PLUGIN:GADGET v1.00]
[PLUGIN:YRR v1.00]
ok
Project loaded in 0 milliseconds
<Home|MPos:0.000,10.000,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0|WCO:0.000,0.000,0.000|VA:24801,50|A:SFM|H:1,7>
[GC:G0 G54 G17 G21 G90 G94 G49 G98 G50 M5 M9 T0 F6000 S0.]
<Home|MPos:0.000,0.000,0.000|Bf:63,131071|FS:1131,0|CL:0,0|PS:2,0|VA:24801,63|Ov:100,100,100|A:SFM>
<Home|MPos:-9.370,-9.370,0.000|Bf:63,131071|FS:848,0|CL:0,0|PS:2,0>
ok
Starting stream
Layer C09
Stream completed in 2:45
ok
ok
[ORIGIN:China]
[PRODUCER:ORTUR]
[AUTHOR:LEADIFFER]
[MODEL:Ortur Laser Master 3]
[OLF:210]
[OLH:OLM_ESP_PRO_V2.4B]
[OLM:GENERAL]
[DATE:20230223]
[SN:B4D87130E26DFC205E5803AACCBE73B2]
[VER:1.1f.20220325:]
[OPT:VNZHS+,63,131071,3,0]
Target buffer size found
[NEWOPT:ENUMS,RT+,HOME,NOPROBE,TC,SED,UD,CLU,WIFI,FTP,TMC=7,SD,ITG,GT,YRR]
[FIRMWARE:grblHAL]
[NVS STORAGE:*FLASH]
[DRIVER:ESP32-S2]
[DRIVER VERSION:220327]
[DRIVER OPTIONS:GIT-NOTFOUND]
[BOARD:Ortur Laser Master 3]
[TYPE:OLM3]
[CLUSTER:16]
Cluster size found
[WIFI MAC:84:F7:03:E6:88:E8]
[IP:192.168.1.240]
[NETCON:Telnet]
[PLUGIN:Power Detecter v1.0]
[PLUGIN:Power Control v1.0]
[PLUGIN:gyroscope sensor v1.0]
[PLUGIN:Trinamic v0.09]
[PLUGIN:SDCARD v1.05]
[PLUGIN:ITG STREAM v1.00]
[PLUGIN:ESP32 WebUI v0.03]
[PLUGIN:GADGET v1.00]
[PLUGIN:YRR v1.00]
ok
<Home|MPos:0.000,0.000,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0|VA:24801,30|Ov:100,100,100|A:SFM|H:1,7>
<Home|MPos:0.000,0.000,0.000|Bf:63,131071|FS:1131,0|CL:0,0|PS:2,0|VA:24791,57|A:SFM>
ok
<Idle|MPos:0.000,0.000,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0|VA:24801,37|H:1,7>
ok
<Idle|MPos:0.000,0.000,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0>
ok
Starting stream
Stream completed in 0:00
<Home|MPos:4.260,4.230,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0>
[GC:G1 G54 G17 G21 G90 G94 G49 G98 G50 M5 M9 T0 F6000 S0.]
<Home|MPos:0.000,0.000,0.000|Bf:63,131071|FS:1131,0|CL:0,0|PS:2,0|VA:24815,63|A:SFM>
<Home|MPos:0.540,0.540,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0>
[GC:G1 G54 G17 G21 G90 G94 G49 G98 G50 M5 M9 T0 F6000 S0.]
ok
<Idle|MPos:0.000,0.000,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0|VA:24805,39|H:1,7>
ok
Starting stream
<Idle|MPos:0.000,0.000,0.000|Bf:63,131070|FS:0,0|CL:0,0|PS:2,0>
Stream completed in 0:00
<Home|MPos:4.260,4.230,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0>
<Home|MPos:0.000,0.000,0.000|Bf:63,131071|FS:1131,0|CL:0,0|PS:2,0|VA:24805,66|A:SFM>
<Home|MPos:0.550,0.550,0.000|Bf:63,131071|FS:0,0|CL:0,0|PS:2,0|WCO:0.000,0.000,0.000|VA:24745,543>
ok
Starting stream
Layer C09
Stream completed in 0:56
ok
ok
ALARM:3
Reset while in motion. Grbl cannot guarantee position. Lost steps are likely. Re-homing is highly recommended.
ok
Ortur Laser Master 3 Ready!
OLF:210.
OLH:OLM_ESP_PRO_V2.4B.
OLM:GENERAL.
GrblHAL 1.1f [‘$’ or ‘$HELP’ for help]
[MSG:‘$H’|‘$X’ to unlock]
error:9
G-code locked out during alarm or jog state.
[MSG:3:Warning: Caution: Unlocked]
ok
Starting stream
Layer C09
Stream completed in 0:01
ok
ok
ALARM:3
Reset while in motion. Grbl cannot guarantee position. Lost steps are likely. Re-homing is highly recommended.
ok
Ortur Laser Master 3 Ready!
OLF:210.
OLH:OLM_ESP_PRO_V2.4B.
OLM:GENERAL.
GrblHAL 1.1f [‘$’ or ‘$HELP’ for help]
[MSG:‘$H’|‘$X’ to unlock]
error:9
G-code locked out during alarm or jog state.
[MSG:3:Warning: Caution: Unlocked]
ok
Starting stream
Layer C09
Stream completed in 1:39
ok
ALARM:3
Reset while in motion. Grbl cannot guarantee position. Lost steps are likely. Re-homing is highly recommended.
ok
Ortur Laser Master 3 Ready!
OLF:210.
OLH:OLM_ESP_PRO_V2.4B.
OLM:GENERAL.
GrblHAL 1.1f [‘$’ or ‘$HELP’ for help]
[MSG:‘$H’|‘$X’ to unlock]
[MSG:3:Warning: Caution: Unlocked]
ok

I was originally at my wits end, having eliminated as many variables as I could while attempting to isolate the issue. However, while copying the console output for this post I’ve found the following error messages:

ALARM:3
Reset while in motion. Grbl cannot guarantee position. Lost steps are likely. Re-homing is highly recommended.
error:9
G-code locked out during alarm or jog state.

I’m transmitting from my Dell XPS Laptop over wifi to the Ortur Laser Master 3. The only recent change I’ve made is to add the extension rails and some elevated feet. I took the feet off before shooting the video and the problem persisted. I’m going to retrace my steps with the extension rails to see if I missed a step or crossed some wires somewhere.

If you can think of anything else I should check please let me know.

Thank you for your time and perspective.

Some crappy close ups I couldn’t include in the original post:


The problem was a loose gear!

Well found!

Attention @misken!

Even though it’s not a Sculpfun, that video belongs on your mechanical tuneup page!

@ednisley done :wink:

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.