Interesting. I assumed 80 because that’s a common value and since $101 was approximately 80 ($101=81.013).
In any case, it should be close enough to get homing to work correctly and to test further from there.
Over-tensioning can create enough friction on the rails where motion is actually resisted. This can cause motion to be restricted and result in distorted burns.
80 may very well be default for this machine. Perhaps Ahmed recalls or saved the original values.
I’m not certain how/if the machine settings can be reset.
Several members of the community see this as being a mechanical issue and not at all software. I am inclined to agree with them but I am open to changing my mind with adequate testing and a repeatable example.
When diagnostic tests show that the Software is the cause of an unwelcome behavior, and after it is known well enough to replicate on another engraver, Someone on the dev team often addresses it reasonably quickly.
You may find that you benefit greatly from writing their suggestions into a notebook that you keep by the Laser, conducting the recommended tests, and responding with your findings.
Trust me on this; folks here have experienced similar behavior with their engravers, including the messed up steps per mm values. You’re not to blame for this lack of fundamentals. It’s very difficult to ‘Google it’ if the terminology is unfamiliar.
This advice is almost always true but you are welcome to continue attempting to uninstall and reinstall the software.
If it is just beeping as you state then the error is unknowable. If an error message is offered by your laser engraver through the Console window in LightBurn, this message will likely offer the reason the engraver is in an error state. This is also incredibly common and ought to be considered important, timely, and crucial to getting this type of issue resolved.
The engraver is most likely generating a an error related to homing caused by either mechanical binding or components that do not move freely or the engraver is calibrated incorrectly and these conditions create homing errors.
You can test for binding by applying gentle pressure to the head of the laser engraver and slowly moving the engraver by hand to see if too much stiffness or resistance can be felt. Move the laser head Slowly. If you move this too quickly you can generate a high voltage spike and damage the stepper motor drivers. This can require repair or replacement of your controller board.
Community members may have been unwilling to answer this question because LightBurn does not have the factory engraver settings. Your engraver holds these values. They are in the controller firmware.
With the Laser Engraver connected to LightBurn, open the Console window in LightBurn and type the following command:
$RST=$
Then press Enter.
This will reset the Machine Settings in your laser engraver back to the factory values selected by the manufacturer. You may want to assume that these values are within 5% of optimal and then make speed and acceleration settings more reasonable depending on your project.
Write this message down. This is a homing error. It’s usually a lost motion problem caused by high speeds, high accelerations, bad switches, and/or incorrect axis lengths. This can also happen if the mechanism is binding and the motors can’t pull away from the limit switches or the settings don’t permit it.
I will write more here but I am out of time for now. I’m going to lock this then clean it up to offer more clarity.