Laser head jolting and making a knocking sound

I put a dog tag in my machine to put my daughter’s name on it. Just playing around. I started hearing this knocking sound and I looked and the laser head is making a jolting sound everytime it goes over a certain area. It jolts and makes a knocking noise as it goes over it. I will post a video if it dont sounnd too dangerous to you guys to un pause it.

There’s probably a piece of debris in one of the belts or on one of the rails. Turn it off and move the head and gantry around to help you find where the problem is.

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I’m so sorry for the concerning noise! As @geek2nurse suggested, please turn off your Glowforge and check the belts and rails for any debris. If there isn’t any debris present but the knocking sound persists, please post a video and we’ll be happy to take a closer look.