I’ve probably got about an hour or so worth of cutting so far on this new Glowforge.
I’ve got my settings down great for this maple plywood I’ve been using. It’s been cutting perfectly, but on my first failure I noticed its kerf looked quite a bit wider than usual as it was cutting. When I took it out, it had a cut right where it began, but then slowly faded to no cuts at all (see pic).
I thought my auto focus was off somehow, so I did a test cut with auto focus definitely hitting the board. It didn’t cut through. Looked clean on the other side. Same big looking kerf.
Thinking it must be the auto focus messing up, I tried manually setting the material thickness and making sure my cut was focused for that. (material thickness was from a caliper, and I’ve successfully cut this material this way before). Same failed cut.
I then got some PG draftboard out and did the whole she-bang. It failed the cut. Looks clean on the other side. I recorded a simple video to show it failing the PG cut: https://www.youtube.com/watch?v=1FVNZL9aves
Not sure what to do from here other than attempting to clean the entire thing, but as I said, it doesn’t have that many hours on it so it feels odd to need to do that from such a fresh machine.
Even though it’s a fresh machine with only an hour or so of cut time, I gave it a shot. Cleaned all the lenses with a zeiss wipe and just did a test print and sadly it’s the same failed cut.
Thank you for posting that photo. I’m sorry that your design didn’t cut out as expected.
There are several things that need to be checked if the laser doesn’t cleanly cut through the material. As you’ve said, it’s strange to have to clean a fresh machine, but I’d like you to take the steps to clean it to make absolutely sure it’s an issue with the laser.
Please turn off your Glowforge and check the following:
I re-cleaned the optics now that my work area is lit up a lot more just in case. I even checked the mirror, noticed a tiny speck of dust, cleaned it with a zeiss wipe as the instructions say to do. Re-installed it properly. Both sides of the main lense look superb.
Thank you so much for posting those. We appreciate your patience as we continue to investigate the source of the trouble you’ve been having with cut through. Unfortunately, it looks like your unit is experiencing an issue that we can’t resolve remotely. I want you to have a reliable unit, so I’m recommending we replace this one. I’ll be in touch via email to sort out the details. I’m so sorry about the bad news. Since this is going to have to move to email, I’ll be closing this thread.