I have a masso with a jtech laser. I need a camera setup so i can do detailed work, but since i cant run the phase where lightburn draws the crosshairs via usb control, im left trying to tape together a solution which is super frustrating..
Ive seen alot of people ask for this over many forums over the years.
Plz and thanks
Is there any software you are aware of that talks directly to the Masso, and controls it live? I ask because not every controller even has this ability. Mach3/4, for example don’t.
Edit: I looked on the website, and they have a Masso “app” for the phone, and Mass software that claims to upload GCode and monitor progress, so some level of support should be possible.
Having said that, the crosshairs that you’re trying to align are the corners of a 180 mm square, centered in the workspace, scaled by whatever the scale factor is. If you can’t run the camera job you can just skip past that, having already run one yourself, just make sure whatever scale you pick matches the scale you apply “by hand”.
If I didn’t explain that well enough, say so, and I’ll elaborate.
@Mark, I just saw that you posted your question here as well.
We replied to your support ticket a day after, and sent you detailed instructions on how to calibrate the camera on your big Onefinity without direct control.
Please let us know how that works out in a reply to that ticket.
I’ll then add the instructions here.
If you could send me links to the posts mentioned, I will see if they can be solved with the same instructions.
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Hi,
Can you please post the instructions you mentioned in this post?
Thanks
The four targets in the Camera Alignment wizard are just a 180mm square, centered in the workspace, scaled by the scale factor. The corners of the square are where the markers are placed. This means you can engrave a square generated in LightBurn without scaling it in Photoshop.
It’s best to use most of the available work area when engraving the calibration targets.
For your machine with a working size of 48" (1219mm) I recommend a square at the maximum available scale of 500%, at 900mm.
I drew four targets, spaced 900mm apart - Here’s the SVG:
At this point, it’s important to know that the Camera Alignment can only be accurate at the height at which the calibration was performed.
This excellent article is worth a review: Using a camera with a diode laser - Diode Laser Wiki
Then, follow these steps: 
Import the attached SVG into LightBurn.
Select it, and press the “P” button on your keyboard to move it to the page center.
Change your speed and power values to leave a visible mark on a paper.
Place a paper under all corners of the CNC’s workspace, where the marks will land.
Save the Gcode and run it with the Masso.
Start the Camera Alignment wizard
Change the “Scale” to 500% (5*180mm = your 900mm)
Click “Next”, “Capture Image”, “Next”
And select the targets in the correct order as precisely as possible. (clockwise, starting from top left)
Please let us know how it goes!
Minimized, see @Aaron.F full response below.
I basically sent him the detailed instructions on how to calibrate a camera on a big machine without direct control.
We didn’t get feedback, on how that went, but if you are in the same situation, please give it a try and let us know how it goes.
Lens Calibration is crucial! I highly recommend redoing the Camera Lens Calibration before continuing.
LightBurn version 2.0 introduced a new way to calibrate the camera lens. It uses the new calibration card with the AprilTags and tracking function. (The circle pattern should not be used anymore)
If you haven’t already, please download and install the latest version from here: Download / Trial – LightBurn Software
You can then follow the instructions for camera calibration with Tracking here: Calibrate Camera Lens (Labs) - LightBurn Documentation
The calibration pattern should cover about a fourth of the camera’s view. I’m curious to find out whether the camera can recognize the tags when you print it on a A4 size of paper. Be sure to glue this sheet to a flat, rigid board and use good, diffuse lighting during calibration.
This feature is still in testing (Labs feature) but is currently the most precise way to calibrate your camera. It’s only accessible with a right click on the “Camera” window:
A couple of questions, before you move on:
If you can answer all of this with yes, I have a possible solution for you to try:
The four targets in the Camera Alignment wizard are just a 180mm square, centered in the workspace, scaled by the scale factor. The corners of the square are where the markers are placed.
It’s best to use most of the available workarea when engraving the calibration targets.
For your machine with a working size of 48" (1219mm) I recommend a square at the maximum available scale of 500%, at 900mm.
I drew four targets, spaced 900mm apart, and attached the SVG
At this point, it’s important to know that the Camera Alignment can only be accurate at the height at which the calibration was performed.
This article is worth a review: Using a camera with a diode laser - Diode Laser Wiki
If you’re still with me, please follow these steps:
Import the attached SVG into LightBurn.
Select it, and press the “P” button on your keyboard to move it to the page center.
Change your speed and power values to leave a visible mark on a paper.
Place a paper under all corners of the CNC’s workspace, where the marks will land.
Save the Gcode and run it with the Masso.
Start the Camera Alignment wizard
Change the “Scale” to 500% (5*180mm = your 900mm)
Click “Next”, “Capture Image”, “Next”
And select the targets in the correct order as precisely as possible. (clockwise, starting from top left)
Please let us know how it goes!