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GRBL Homing goes 60mm disregards limits #1272

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Niccio08 opened this issue Feb 19, 2025 · 0 comments
Open

GRBL Homing goes 60mm disregards limits #1272

Niccio08 opened this issue Feb 19, 2025 · 0 comments

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@Niccio08
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Hello, got a weird one for everyone. I'm a long time 3D printer, but just getting into laser work. Here's the issue:

When homing, the Z-axis homes correctly. The X and Y axis move ~60mm and if they hit a limit switch, they continue trying to move.

Bed Size 220X220X220

Testing:
Manually jogged the head, works all around the bed, no limits on bed size
If I jog the head into any limit switch I get the expected alarm (Hard Limit)
If I manually activate any limit switch I get the expected alarm (Hard Limit)

Examples:
Home from center of bed->
Sets Z-Axis correctly, Moves X and Y 60mm then stops and errors:
...Homing Fail
...Grbl 1.1f ['$' for help]
...[Msg:Check Limits]
...[Msg:'$H'|'$X' to unlock]

Home from 30mmx30mm position->
Sets Z-Axis correctly, Moves X and Y 30mm to the limit switches. When limit switches are hit, it continues to try to move the additional 30mm:
...Homing Fail
...Grbl 1.1f ['$' for help]
...[Msg:Check Limits]
...[Msg:'$H'|'$X' to unlock]

Settings are:
$0=10
$1=25
$2=0
$3=1
$4=0
$5=0
$6=0
$10=3
$11=0.010
$12=0.002
$13=0
$20=0
$21=1
$22=1
$23=2
$24=100.000
$25=200.000
$26=25
$27=5.000
$30=1000
$31=0
$32=1
$100=800.000
$101=800.000
$102=400.000
$110=600.000
$111=600.000
$112=300.000
$120=800.000
$121=800.000
$122=500.000
$130=2200.000
$131=2200.000
$132=2200.000

I've been unable to find anything in the firmware or configuration that could be causing this anomaly and am hoping someone has some insight!

Thanks!

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