LightBurn Camera Lens Calibration

I am first. Good like✌️

Is the red 3d printed camera holder available for download?

Have tried getting this to work all week... when I click on "capture" nothing happens. No preview, no score, no nothing. Have tried moving the camera, changing angle, pattern placement, etc. No capture or score

Great tutorial. I recently bought a camera, but haven't tried to calibrate or align it.

Lightburn❤️
I bought the Lightburn camera in January 2020, worked right away on my Custom 1300x900😎

Brilliant!
I have been using a webcam fixed to the roof about 1.5m above the laser and using a small (A5) printout of the calibration image, this has given some success but it tended to drift depending on where the laser was cutting. ie it would be way off at the edges of the bed (600x400).
To get the thumbnail image the same relative size it had to be A4 sized, now working beautifully with calibration figures at 0.05 to 0.07
This was the critical help required to get the thumbnail to match the printed image on the laser bed.

Thanks for the video and the software I would be lost without it. 👍👍
Now I just need to sort the rotary device and will be 100% chuffed.

very helpful. thank you. Now just need the camera mounting video, and I will be sorted...Terry

So in the video you keep saying "where you hold the pattern card..." aren't we supposed to be doing the calibration on the laser bed proper?

what is the webcam even used for?

Thanks for the tutorial, too bad this didn’t come out 24 hours ago. I spent forever making little mistakes and having to watch different users vids to get it right . But I really love it now that I got it dialed in .. do you know what the tolerance is on how close you can get and if I can adjust it to be exact without recalibrating ?. Right now im about 1 -2 mm off. On the x axis

I’m a bit new to laser burning.
Can you please explain what this camera is used for??

Hi Thanks a lot for the video, very helpful. So LB 1.1.00 is arriving :-) ??

Ohh.. I have been doing it wrong for the last few months! I thought the camera needed to be mounted on the laser and the card on the laser bed! Now I have to do it all again!

So, the camera does not need to be installed in the machine in order to do the calibration? Also, what does the honeycomb check do?

I've just gone through this process for a new camera today before seeing this - great timing lol. Had issues with the honeycomb bed but I just covered it up with sheets of plywood. At first I thought this process was easy but I just finished running the thing 6 times because of... issues. Now I think it really needs some more work lol!

Hello to Lightburn Software. Is there a way I can use VCarve Pro ( to my CNC machine) and use those files on Lightburn for my Laser... I cant seem to figure out the file format that both understand... Can you give me insight on this.?

So we don’t have to mount the camera for this . Since your camera is actually on the bed rather than mounted on top . Is that correct ?

Great walkthrough Lightburn! Nice to see how to do this calibration from the source! Thank you!

I thought computers made things EASIER? Give it a year and some grad student will develop an AI based solution that will do it in 10 seconds.

I've been banging my head against the wall for over a month, trying to get my LB to report anything but "pattern NOT found - try again". I've done everything suggested on the forums, and everything shown here, except hand holding the target, since that's 100% against everything advised elsewhere, including their own documentation. Maybe I'll rip the camera out of the laser and try it again in free air? This is amazing software, but the camera system REALLY needs some more attention. Like pronto. :/

Finally a video about calibration that shows what I found when I was trying to calibrate mine. I had so many, what I thought were issues and now seeing this, he has the same issues and lets us know that this is normal and how to correct it. Thank you so much for posting.

Excellent clarification. I had always assumed that it mattered that the circle pattern be on the laser bed based on the example images in LB. I'd bet that replacing those with some stills of you holding the card in the appropriate positions would eliminate some user confusion.

I spent a good bit of time trying to figure out how best to cover my honeycomb and get nice even diffused lighting for the test originally without great success. Going to try it this way now!

I haven't attempted to calibrate my camera yet but I have been giving some thought to how I intend to try.
I was planning on piercing the calibration card at each corner and threading some equal length monofilament and tie them at the same length to a small ring or something.
Then by taping the ring near the camera, I can then swing the card towards each of the nine positions and keep it perpendicular to the camera (or at least close). This would swing in a spherical shape environment. Theoretically only useful for fish eye cameras.
Hopefully that makes sense.

How large should the circle card be? I have watched numerous videos and everyone seems to skip that part. Doesn't it matter?

Lightburn freezes and crashes every time I try to calibrate it. I constantly get the Pattern NOT Found or astronomically high numbers but never get past the 2nd capture before it crashes.

Good video but how about a link to the next video to finish things up.

tHIS VIDEO SUCKED! I have the camera and you are holding a card in different places for a camera that whats to focus on a fixed area? WIERD haircut too

calibration has been a nightmare.... Calibrate lens, align lens, and still laser is off when I attempt a project. Good to know its not just me having issues.

Why does LB not recognize the LB camera ? It did when I first put it up. Had to take it down when I moved, and now I have some odd name camera listed AVStreamMedia. Yes, it worked....but it's slightly distorted, and LB Camera (5 - 120) was never a problem and the preset was smack on. I've updated LB to the lastest version (ver. 1.2.04) as of yesterday. And I've recalibrated lens and alignment...still distorted? Am I missing something????? Why doesn't show the LB camera? UPDATE: Well, it is not LB fault...that's the first thing. Good O' Windows 10. I did a little research on AVSTREAM MEDIA....low and behold, Windows did their famous update . I went in and Disabled it, and in Device Manager I chose to have Windows check for changes and there was LightBurn Camera choice back...and the software picked it up as well. All is back to normal. I'll guarantee there will be others that will run into this.

Wait so you can just hold the card in front of the camera? It doesn’t have to be facing the work bed?

darn ..i just disassembled my printer, can i just burn the pattern on a white material?

You really should have done this with a 410x400 diode laser and the most common co2

aucun intérêt ..

Camera is so bright we can’t see anything. Unusable.

Thanks for this video. I calibrated my camera per the instructions, and it works great, however I am having some issues. When I put a small piece of material (round piece of wood the size of a nickel) on the board and do my update overlay to capture what is on the bed the engraving is a little bit off. I place it in the middle of the piece on my screen, but it engraves off centered. Any ideas on how to fix that? Thanks

Why is the camera pointed at you instead of the laser bed? It isn't logical to do the calibration as you present it in the video.

This is one of the most frustrating things I’ve done tbh. A lot of patience

So I was just laying the paper on the bed and getting bad results. Then I glued it flat to a piece of MDF and the numbers dropped way down. Just a slight wrinkle apparently makes a big difference.

So I can hold the pattern to do this calibration is what im getting out of this video, do I need to change the size of the pattern b4 I print it

I have the expansion for our sculpfun laser with the size 935x400. And I am using a sculpfun honeycomp 400x400. But my honeycomp is starting at 467,5 in y-position.

When I calibrate the camera lense, the first part with the points works fine. Then when I have to put my sample in the middle of my honeycomp and and click on “Frame” the laser is driving his frame in the middle of my long side, not in the place as it is. I can’t choose this start position and also my camera is in the middle of the homecomp not in the middpe from the extension. How can I change this?

this and the alignment video were very helpful thanks, got it to work with my fiber laser and is fairly accurate +/- .2 on the shift, generic 2mp with 120* lens

What isnthe point of camera calibration? I mean what is it's purpose? I see the steps but it's actual purpose does make sense so far. And when I do 1rst part and then frame my laser always crashes

thank you for the video but where do you plug it, on your computer or directly to the machine

Why not let the laser make a square and then let it calibrate to that

Calibrating the Atomstack Kraft Wow what a pain!!!

I was having a lot of problems using the circles. HOWEVER, the new update allowing the QR code things made it SEAMLESS to set up! Good stuff.

i hagve installed drives and still cant see a working camera option. any ideas?