Folks, sorry to bother with a question that I have seen asked differently:
I’m using a NEJE laser with an expanded work area (about 1000 X 800mm).
When I run tests, the laser doesn’t frame to where i’d think it should based on the image location in lightburn.
I’m sure there is some configuration step I’ve missed…
Would someone kindly point me in the right direction?
Many thanks!
Both start from and job origin will effect where the art is engraved.
You probably need to set your start from to absolute coordinates.
This assumes it’s been properly set up.
The art is done relative to you job origin, when applicable. With Absolute coordinates, there is no job origin, it will put it on the material in the same location as your workspace.
Good luck
Oh, thank you! That’s very helpful.
Upon reading, it seems that (perhaps) Lightburn doesn’t know that i have the NEJE rail expansion pack installed, and so my work area isn’t correctly represented/known in the workspace.
→ Any idea what to do, to get the Lighburn workspace to properly reflect my physical workspace?
A corollary to the opening question: when i open Lightburn, the workspace area is rectangular but its in “portrait” view.
How do i change to “landscape”?
There is no “portrait” or “landscape/” in Lightburn. Look at the workspace grid. Xaxis is across the bottom and Yaxis is up the side. The size and shape of the grid is supposed to match your machine travel limits. With a whole lot of work and grief, You can switch the X and Y coordinates of your machine. That will give the appearance of switching to landscape mode.
You are short of vertical space because your machine has a rectangular frame, right? Artists often buy monitors that can be mounted sideways to get more vertical work area. Maybe this idea will work for you.
MikeyH - while you answered, i was editing my post for clarity.
I think the problem is - the SW recognizes the standard size workspace, but not my true workspace.
Does it keep the changed worksize area, or does it rewrite them with a default value?
Jack, i’m not 100% of the terminology here, but the default workspace doesn’t reflect the larger size of my actual/physical workspace.
Where can i set the workspace size?
Generally with grbl machines, the size of the workspace is defined by these variables.
Some of the newer machines that contain an SD card may have parameters set on the card. Usually it’s an SD card with a text file on it.
Can you set the proper value then re-read the values?
$131=400 to set it to 400, then read it with $$ command… does it retain the changed value? You will have to use your size here…
Make sure your Working Size matches your actual workspace area. This will determine how big the grid is on your screen.
Go to Edit > Device Settings and you should be able to set Width and Height to match. This is also where you would set your Origin which is where your machine determines 0,0 coordinates.
Thank you. Definitely helpful. but… what are the 4 different Origin options in your post? Why is the bottom left chosen?
Also, what is the difference between Origin and Home? (well, even i know what Home does…)
Also - a related question: I have the working size set, but I’ll be cutting out a design from lambskin. How can i set a visible (to me) frame of the size of the hide - so i can place all my shapes inside the ellipse?
I just want this as a guide, not for cutting purposes.
Thank you all so much!!
Origin is 0,0 on X and Y axis
Home is where your machine sets to a known position. Some machines home to 0,0 but many don’t. Mine homes to 0,230 for example. Top left for my home but bottom left for my origin.
You have to know how your particular machine does it.
This might help.
That was helpful, indeed. My machine, a NEJE, has the expansion rails added on and that seems to have confused everything… or at least, confused me. Based on that video you sent, I adjusted the Job origin to be where they physically “should be” - the physical front left of my working area. (At least I hope that’s what will be when I reconnect to my laser.)
So, I also gathered for that - with regard to my second question about defining my actual work area (corresponding to the unique size of a lambskin, for example) - I should just draw my ellipse, try to frame it, and then turn the layer output to “Off” and place my items to cut inside the ellipse.
I just want to say… your patience is much appreciated! It’s kind and helpful people like @CarlFisher and @jkwilborn - who have probably answered questions like mine 100 times over - that really make a forum.
Or you could just draw them on one of the tool layers. I don’t have it in front of me but I think the last 2 layer colors are labeled T1 and T2 and they are tool layers that by default won’t output during the job. But otherwise you’re on the right track I think.
Did I understand correctly that you also want to change the orientation of your laser and LB workspace? Such that you are watching the laser in landscape orientation and want to have LB reflect that?
I described how to do this here (at the end):
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