Hello, I am a Newbie and I have a Wainlux JL7. It works very erraticaly, and the homing is impossible, I always receive the error message:"
“Homing fail. Cycle failed to clear limit switch when pulling off. Try increasing pull-off setting or check wiring.”
The pull off are set at 20 mm on each axis
When asking to home, it drags a few millimeters with a scratching sound and just stop
with the message 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
And almost all jobs I sent to the console are not possible
ALARM:2
G-code motion target exceeds machine travel. Machine position safely retained. Alarm may be unlocked. (Right-click the ‘Devices’ button to reset the connection)
I changed the pull off to 20 mm because i saw the recommendations from another topic with similar homing issues, but it did not help. What should be a better figure?
It has homing switches
The motors seem to be turning, but the laser just stops its course
I ran your commands after i got the error message, as follow:
Homing fail. Cycle failed to clear limit switch when pulling off. Try increasing pull-off setting or check wiring.
The laser otherwise works well if i ask for small size pattern that starts from current position
I am unable to get him homing or consider absolute coords.
The $24 and $25 parameters setting the homing speeds seem extraordinarily fast. Reduce them to 25 and 250, respectively, to slow it down. If that works, you can increase $25 until it fails again, then cut that speed in half.
Thank you for your answer.
I changed both as per your suggestion, it move more slowly, but it did not solve the homing issue
i think i may have to change the coordinates for the homing and delimitate the areas the laser can move - but i did not figure out how to achieve that successfully that from the tutorials
G-code motion target exceeds machine travel. Machine position safely retained. Alarm may be unlocked. (Right-click the ‘Devices’ button to reset the connection)
20mm is overly large and unnecessary. And on most implementations this would be taking away from your addressable area of the laser.
I’d suggest putting this back to the original value.
From this is looks like your homing pull-off is set to 1mm which is fine. I’m curious then what you switched to 20.
I was under the impression that your laser was not moving at all. Can you describe in detail what happens when attempting to home? Does the laser head move toward the homing switches?
Based on what I’m seeing I don’t think this is the problem.
I think what’s happening is that your machine believes the switches are engaged.
Disregard the P but the Y and Z indicate that it believes Y and Z switches are on. I’m curious about this because I suspect you don’t have a Z switch at all. This makes me believe the unit may be wired incorrectly. Can you inspect the wiring and make sure you’re connected to the correct X and Y switch ports on your controller?
I finally got an answer from wainlux support, they sent me the JL7 lbset to import and write on the machine settings.
It did not improve my issue and i keep getting the same
When asking to go ‘home’, the laser will just go ttowards the side switch and stay there. A few times it became erratic and crashed again the frame lenght (that has no switch) with a loud cracking sound.
To me it looks like it doesn’t know where it is and assume all job requests are beyond the working area (even when i request a tiny work starting as the current position).
I turned off and checked all plugs/ unplugged and replugged all that could be plugged as per user manual.
You are correct, there are only 2 switches
For your note on Pn:PYZ - it would mean that the laser only works on Y and Z, while it should be on X and Y?
How can I amend that if this is the case?
Thank you so much
Elodie
Now the parameters
Settings:
Status: Position reporting ($10): Machine Position
Double-check that the cables are plugged into the correct ports. If you’re not sure about this or it appears to be plugged in properly then can you take some high quality photos of the cables at the switches and at the controller? Ideally any markings on the controller would be visible.
The other thing to try is to unplug the limit switches and then rerun this command in Console. I’d like to see if the status changes.
Hello again and thank you!
I unplugged and replugged except for the ones that were already mounted in factory, but i pushed gently again to ensure they are in
Pictures as follow:
Here is the ? before unplugging the limit switches
?
[MSG:Using machine:JL7]
Grbl 1.1h [‘$’ for help]
[MSGok
ok
[VER:1.1h.2020081702:]
[OPT:VZ,15,128]
Target buffer size found
[MSG:Using machine:JL7]
and after:
[MSG:Using machine:JL7]
Grbl 1.1h [‘$’ for help]
[MSGok
ok
[VER:1.1h.2020081702:]
[OPT:VZ,15,128]
Target buffer size found
[MSG:Using machine:JL7]
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.
Yellow box - I assume goes to a stepper motor. Which one is it?
Red box - Looks like both switches converge to this connector. Can you confirm?
Green box - Where does this go to?
Blue box - This should lead to another stepper but not sure which one? Is this used?
White box - This also looks to be used for a stepper but unclear which one. Can you clarify?
