Burn a square with the I.R. Enter G28 X0 Y0 in the Console. Then burn the same square with the diode. They should be pretty much on top of each other
Did not expect that much offset. 2" or 1/2" squares?
Please work in mm only so we do not get conversion issues.
Can you do the same test, but with no offset for the I.R.?
G28 X0 Y0 for both (you only have to enter it once).
And let us know what size square you are using.
1 inch square and I did it twice. Once with original line you posted and then the 2nd line. The images were the same.
I do not have offset turned on in the basic tab. I will attach the file in a minute, I think it is still on the screen, otherwise, it is goneā¦
MIKE H.lbrn2 (3.4 KB)
The outside rectangle was only for placement purposes, needless to say.
Please confirm this one was produced with no G28 offset (G28 X0 Y0).
With the perspective angle, exact is not possible. But try this:
- I.R module mounted, Home the machine.
- In the Console window, enter G28 X-.530 Y-19.300
- Burn your square with the I.R. using the MIKE H file you sent me.
- Mount the Diode module and Home the machine.
- In the Console window, enter G28 X0 Y0
- Capture an image of the result. Straight down if possible. The squares should look square.
- Upload your image.
I need to confirm the G28 is actually working in your controller.
Here is a new file to try.
- Home the machine.
- Enter G28 X0 Y0 to cancel any offset.
- Run the blue square with the diode.
- Run the red square with the I.R.
- They should be on top of each other. Maybe!
No fileā¦but, if I enter the command into the console, does that stay, I notice that there is not $ in front, so I am going to assume, no.
I did the Please confirm this one was produced with no G28 offset (G28 X0 Y0).
With the perspective angle, exact is not possible. But try this:
- I.R module mounted, Home the machine.
- In the Console window, enter G28 X-.530 Y-19.300
- Burn your square with the I.R. using the MIKE H file you sent me.
- Mount the Diode module and Home the machine.
- In the Console window, enter G28 X0 Y0
- Capture an image of the result. Straight down if possible. The squares should look square.
- Upload your image.
That you see in the image I posted, exactly as as the you requested minus the Mike H file. The 2nd line I typed for that image was G28 X-.511 Y-14.617
I will have to convert to mm because I do imperial and while being a retired teacher. I have never used the metric system.
MIKE H - New Test.lbrn2 (22.3 KB)
Sorry, I got side tracked!
It is āmodalā which means it stays in the controller while the power is on until you change it.
Being a temporary setting, it likely ceases when you reboot the controller, but I am not sure.
That $ is a controller command. This tells the controller how to operate.
That G is a program command It tells the controller what to do while it is operating.
This one G28 X-.530 Y-19.300 was not accepted in the consoleā¦the new one for the IR. So, I could not perform the squares.
Iām taking a break from this, this weekend. I hope you will do the same. I am also thinking that where the laser point is on the IR, and on the diode, are about the same distance that was shown in the squares I did with the first console entry. Do you think so as well?
Iām at the point that I am going to uninstall all of Lightburn, make sure there is no Lightburn mentioned in the Registry and all evidence of the program is deleted as well.
Thanks again for everything you are trying to help with this situation. Have a great weekend.
You take a break. I am retired, so doing this is my break. 
It knows that will put you past the Home position. Did not expect that for G28.
Donāt bother. Doing this rarely solves any problems, and in your case it definitely will not. You have a mechanical difference between the modules. I was hoping we could compensate with coordinate settings.
When you get back:
I may be backwards in my thinking. Try G28 X.530 Y19.300 (positive values) instead and see if that makes it better or worse.
I decided to take a few minutes before the Tennessee vs Auburn football game to try with positive rather than negative, which the console did take. However, every image I have sent, like the last post, is exactly the same. I am at the point, since I know what the IR does, I can move my project over to that space, and get the project completed that way. Pain in the butt, but it works.
I am retired as well. I taught special ed from 1977-1999, then did tech support for the department until I retired in 2007. I had my last vendor event of the summer last Saturday and this is my first week without it. It was nice to sleep in and not have to load and unload, setup etc. this week. I have 2 more events for certain before Christmas and hoping for a 3rd.
Draw one square with the IR and one Square with the diode.
Consider IR as your āzeroā laser but have to add the difference in X to align horizontally with the diode.
Then add the difference in Y to diode to align vertically with the IR.
Like 1 offsets for each laser to set/get the same X0 Y0 because the lasers canĀ“t move further down and to the left.
I think the best way to handle your the two different laser modules would be to have separate device profiles. The Device management area allows for duplication and renaming of devices.
This means you can have the material library and cut settings be all set up and ready for each laser type.
It shouldnāt really matter if one laser module has a slightly offset working area (as shown below, red vs blue) for either of the relative position āStart fromā options: āCurrent Positionā or āUser Originā.
It only matters if you are using āAbsolute Coordsā (which looks like the best fit for you based on the look of the work in your video) with a fixed grid or alignment jig in the workspace and you want to switch lasers. In that case, you would have to move the jig slightly so the bottom left corner of your jig/grid is correctly aligned with the home position of the laser you are using.
There are many ways you could reposition an existing jig. For example, you could have a fixed L-shaped corner at the front left, and a similar one rear-right, so your jig or work sits hard against either the front-left or the rear-right corner guide, depending on the laser in use.
HA, and you told me to take a break!
I had the feeling that is where we would end up. Maybe put some sort of removable guide in the honeycomb or on the bed.
I still have not given up (donāt reply before Monday 
), and think maybe we can shift the diode over to where the I.R. starts. Then move the bed over to this new home position.
If you want to stop messing with it, I totally understand. But it has become personal between me and your laser, so you have to tell me when to back off.