So i noticed that my laserhead seems to bump off course whenever I cut as close to the bottom right hand corner that I can. It seems to attract to the magnet at the corner. You can visibly see a white scuff on the laserhead after printing.
In this case I am cutting a perfect 10.5" by 10.5" square. all the other corner are fine, except for that bottom right corner.
I’ve never noticed that, but I’d recommend just repositioning your square a bit more to the left to avoid that… (sorry if akin of comment from patient to Dr that “it hurts when I do this”, and Dr responds “well, stop doing that”). Though maybe it’s something that can be fixed, since I don’t think the magnet at the crumb tray door is really that strong…
Curious–does it do it with small shapes that you place in that corner? That will help confirm it’s a mechanical issue if repeatable regardless of file/image size.
(And with small shapes, you can test the motion just using small scraps, and not a whole board!)
And if it’s due to the door magnet, you should see it happen on the bottom left corner, too–or have you already tried that and it only happens on the right corner?
I honestly haven’t tried yet. Im on a little bit of a time crunch today and started cutting these squares and noticed it. I mean this square file is cutting fine now that its about an inch and a half from the far right.
Several machines have had the front right bumping issue (I would agree it’s not magnet related). Not a lot, but it’s happened before. But, I don’t think I’ve heard of it since the camera calibration tool came out.
If it were that simple a design issue we all would be having that problem. If you are not using extra magnets then I would doubt some major design problem like that/
What would be my first suspicion is some loose piece of material causing a mechanical problem. If you turned off the machine and gently moved the head to that position you should be able to see it or at least feel it bump. If you can repeat the issue with the machine off and in the open it should be a lot easier to track down, and likely be an issue that would only be visible when the head was in that position.
I mean its usually off maybe 1/2 an inch or so and yeah i will definitely calibrate the camera when I get a little free time, but I’m not quite sure how that would fix it. I’ll test out some smaller shapes in both corners, and most likely the gift of good measure for the support team at GF and see what happens
I’m sorry you’re having an unexpected result in your prints in the bottom-right corner of the work area. It looks like you’ve already received some excellent advice from our other community members. Thanks folks! As others have mentioned, doing a very detailed check for any debris that could cause a bump in motion is a great idea.
Since your prints are landing more than ¼” away from where they were positioned in the preview, I agree that recalibrating the camera in your Glowforge would also be a good place to start.
You’ll need a 12” x 20” piece of Proofgrade material with no markings or stickers. The feature was designed to be used with a flat piece of medium Proofgrade Draftboard, used upside-down (with the QR code side down). It may work with other materials that are the same size and use the same print settings as well, like Proofgrade plywood.
It prints a grid of markings, takes a picture, then measures its height in multiple locations. This data is used to make your camera more accurate for future prints.
I see that I’m not the only one having the same problem. Mine started a while ago just for no reason and my only solution to the problem was to just stay away from that corner whenever I work on the laser.