When using Lightburn it appears as if the axis are backwards. I don’t have this issue with freeware.
When I move from the home position to the center of the work area, lightburn thinks I am way outside the box.
Click the ‘Spanner/Gears’ icon near the top-center of the LightBurn screen to expose the ‘Device Settings’ page and post a screenshot here. Do you have the ‘Origin’ set to the lower-left dot as shown below?
This indicates that LightBurn thinks the laser head is off the workspace to the low-left side. Are you saying that if you move the head to the front-left of the frame, then power up OR power up then enter G92 X0 Y0 into the console, you jog movement is still going in the incorrect direction?
What is the exact version of firmware you are running?
You say movement is opposite to what you expect. You have $3 set to 6 (2 + 4) meaning that X is not reversed, but Y and Z are. Is it only the X axis that’s reversed? If so, try setting $3=7, to reverse the X axis as well.
I tried to watch the video but your logo keeps appearing over all the stuff I’m interested in looking at, and I can’t dismiss it:
ALARM:1 is hard limit triggered, so either you’re moving the head to the point where it’s pressing a limit switch, OR you have limits and homing enabled, but don’t actually have switches, which would cause major problems. $20=1 in your settings, meaning soft limits are enabled - the machine will try to prevent you from traveling out of bounds. $21=1, which means hard limits are enabled, so if you hit a limit switch it will trigger an alarm. I could not tell from the video if you have limit switches.
That did the trick on the direction, looks like it is fixed. but now I get an ALARM 2 even though it is not up against a limit switch. I think I’ll turn off the limit switches. To do that set both $20 and $21 = 0?
Boom- fixed. Thank you so much and sorry for being so much trouble.
In the future how can I keep from programming a workspace offset? I assume I did it without knowing what I was doing.
In the future I want to use this laser to cut holes in a plastic enclosure and need repeatability so I think I will use absolute coords, find a spot to mark as the starting point then go.
It’s easy enough to check if there’s an offset by typing ? and looking at the ‘WCO’ values - if they’re not zero, you have an offset. The G54 entry when you type $# shows it too. LightBurn will never change that, but it’s common for CNC software to do it - That’s what ‘setting your zero’ is doing - setting an offset between the actual zero point of the machine and the work piece. LightBurn does this by just remembering that point (when you click ‘Set Origin’) and simply moving there when starting a job. Much simpler, no offsets required, doesn’t affect homing, jogging, or machine limits.