My laser has a bed size of 720x520 which is set up in Lightburn and the Ruida controller.
I’ve got a roll feeder for paper on the U axis, although I don’t think this is related to my problem as I’m not getting past the first cut, to where it would attempt to feed.
I’m trying to cut shapes into the paper that are larger than my Y axis. I’m using the “Cut Shapes” feature with an oblong 720x520 to separate each section.
After I’ve done the “Cut Shape” Lightburn says the shape is “Min (110.6x, -0.0y) to Max (624.7x, 520y) 1 objects”
When I try and frame this Lightburn says “Running this frame might exceed the bounds of your machine - are you sure?” If I say YES the frame is sent to the machine and it frames OK
When I press “Start” Lightburn says "One of more shapes crossing the edge of machine workspace AND WILL NOT BE SENT Continue? (my caps)
So my problem is although my job is not over my machine work area size and the machine will happily frame it (so I assume happily cut it?) Lightburn won’t start the cut job, or send a file to the laser, because it thinks it’s too big, even though it’s displaying the job size as not being over the machine limits?
Because I’m feeding 520mm after each cut, so the sections line up into one big object, any workaround like setting my bed area 1mm bigger or slightly moving sections before cutting is likely to stop everything lining up?
I’m not using the “Print and Cut” feature because no alignment is necessary, the feeder always moves the paper exactly 520 mm in Y.
Testing I’ve spread a test object across 2 cuts, used the “Cut Shape” to split it then moved the bottom half down slightly and the top half up slightly and I can cut both halves perfectly (apart from the small gap), but that slows everything down though and it wouldn’t work well where the object spans more than 2 cuts as the error would get worse.
Sorry for the length of this post, but I tried to get all the relevant facts in.
Thanks
Lightburn agrees. Overscan, where the laser has to stop and reverse, can be out of bounds due to inertia if your Yaxis burn command is to the edge of your workspace. If you are willing to bang the module into the frame, turn off all limits. Of course you will then get positioning errors.
Have you tried toggling this option in the settings?
You can believe the software, which means something likely isn’t setup properly. Not sure what that is or how exactly you’re doing your process.
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