@LightBurn, I’m hoping you can help me.
I received my lightburn camera today, but am having a hard time getting it calibrated/aligned. I ran the lens alignment two full cycles, then did the camera calibration, but in the calibration step, my preview still looks a bit fish-eyed (I have the 160-degree camera on an Ortur Lasermaster 2 if that matters)
I tried to test it, and when I did the “capture overlay” then jogged the laser to the center target, it’s landing about 2 inches below where it should.
Any ideas where I’m going wrong while setting this up? I’m happy to send any pictures you need!
The preview is always just a raw feed, so the fisheye there is normal. The edit window backdrop is the one that gets un-warped, and that looks like it’s working as intended, and it’s just scaled incorrectly.
When you ran the alignment markers, did you enter a scale value that was larger than the default? A common mistake is pressing ‘Enter’ or ‘Esc’ (I can’t remember which) in the alignment marker window which will cancel it, and then if you go back through but forget to set the same scale value the second time, it resets back to 100%, and that would make the end result much smaller, like you see here. It could also offset the center, because your camera view is at a angle.
Thank you @LightBurn for helping me troubleshoot this. I went back to the alignment tool and put in the scale of 190, which is what I engraved my 4 markers at. I re-ran the alignment at that scale. But when I tested after, I’m still ending up about an inch and a half below the target, just like yesterday. I must be missing a step.
When I look, my camera is at a bit on an angle, because it was picking up so much behind it. Should I make sure it’s dead straight over my bed? Could that be the problem?
Update: I adjusted the camera so it’s straight up and down. Then re-aligned and calibrated. Now I’m still an inch and a half down, but also about 2 inches to the right. I’m going to take a break. I’m getting frustrated
Ok @LightBurn, I must be a glutton for punishment I took a few hours off, and am back down here. I’ve re-aligned and re-calibrated at least 9 times. Every single time when I do the test to see if the laser will land on a target, it’s always off by a couple of inches. Sometimes it’s the y axis, sometimes it’s x-axis, sometimes it’s both. I can’t find any rhyme or reason.
I tried different scales, thinking maybe I THOUGHT it engraved the targets at 190, but could have been remembering wrong. So I tried 195, 180, 185, 190 again a few times. I really don’t know what else to do. Any help is appreciated!
You only have to do the lens curvature part once - it really doesn’t have much to do with the alignment, so no need to do that part again. I’m assuming the camera is hard mounted to the frame of the laser, or at least the laser cannot move relative to the camera, is that right?
@LightBurn…I’m watching youtube videos now and something dawned on me. Is it possible that my machine moved from when I initially engraved the targets and that is causing my calibration to be off? Should I be engraving a fresh set of targets everytime to be sure the placement doesn’t move at all?
Yes - if the markers are not exactly where the machine put them, it will mess up the alignment.
You can fake the markers by drawing a 180mm square and centering it, then scaling it by whatever you scaled your alignment targets at, and just drawing the square. The four corners of that square would be in the same spots as the alignment markers, so you can just tag those instead.
@LightBurn It worked!!! It was the alignment grid had moved, I made a new one and I was able to successfully engrave a super quick pen. It looks perfect. Thank you so much for your patience with me!
