Having Problem Starting Machine

I am having some issues when I try to start up and print. The attached video shows how it’s getting “snagged” up upon start. If. Can get past this by placing the head under the camera once I start the print it gets stuck again and I get the yellow flashing button.

I have an email into tech support, but in the meantime does anyone have any suggestions as to what the issue is and how I can fix it?

Thank you.

What did support say? They are the only ones that can review the print logs…

Haven’t heard back yet. I just sent in a request this morning.

This almost always because you are not really connected to the Glowforge Server, My advice is to restart over and over again , sometimes takes me 5 or 6 times for the Glowforge Server to kick in, this only happens to me on the Older Glowforge Plus but not the Pro.

Long shot but the Glowforge starts up by looking for your head and aligning itself. Generally speaking it’s best to start up with no material on the bed, as it can confuse the machine as to where things are.

So try again but with an empty crumb tray. It may solve your issues.


I’d also look very carefully at your left-right wheels, and the teeth on that belt, that jittering could be it catching on something.


I agree with @deirdrebeth. This looks like a mechanical issue. It is definitely NOT anything to do with servers or your connection. That’s not the way the machine works. I also don’t think it’s confused by material on the bed.

When the machine starts up, it takes a picture of the bed and sends that to the server. The server then calculates where it thinks the print head is and sends a command back to the machine to move it to the center under the camera. This is one straight-line movement: it might go to the wrong place, but it would never tell it “wiggle weirdly back and forth”. There’s something wrong with a belt, wheel, track, motor, etc.


Thank you everyone.

I do think it’s more mechanical. I will have to take a closer look at the wheels and see if anything is catching there that I can see.

I did send some pictures to tech support of the wiring, but haven’t heard back from them yet. I had a fire several months ago and had to replace the left side light and the cable that goes to the camera, but everything was running perfectly after that. Maybe it’s residual issues from that.


They said they can’t help remotely so they are going to send a refurbished one (for a price) and I can then send this one back in.

I do appreciate everyone’s help. I was hoping it was something small I could fix on my own.


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