Laser not firing - Glowforge Pro - Help!

I was doing a cut and engrave and during the middle of the process the laser stopped firing (it looks like the laser tube is not working). We performed all the cleaning and same result.

Hi @jenn2179 - I’m sorry to hear you’ve run into this trouble, thanks for reaching out.

If your Printer Head is moving but you aren’t seeing the laser marking your material, there are two likely causes:

  • The mirror in the Printer Head is not installed correctly and may have been damaged.
  • The print power has been set to the lowest possible setting.

First, please inspect the mirror in the Printer Head

  • Follow these instructions to access the Printer Head mirror.

  • If you see damage to the mirror or the plastic handle (for example, if the plastic handle has been melted), please check the interior of the Printer Head for any additional damage. If you don’t see any signs of physical damage inside the Printer Head you can purchase a replacement Printer Head Mirror through the shop. Note: If there is damage to the plastic handle on the mirror, the mirror may be difficult to remove. You can follow the instructions here for removing a mirror that is stuck.

  • Once you receive your replacement mirror, please clean both the lens and Printer Head window, by following these cleaning instructions.

  • If you find any damage in the Printer Head, please take a photo of the damage and send it to us and we’ll follow up with next steps.

If the mirror looks good, do a test print

  • If the mirror is undamaged, please reinstall the mirror.

  • Place a sheet of Proofgrade material in the bed of your Glowforge and open the Gift of Good Measure design.

  • Before starting the print, please select the default Proofgrade settings. Once the material has been chosen you will see the word, “Cut”, “Score”, or “Engrave” under each step in the design.

  • When the print finishes, leave the lid closed and wait until the fans stop and the lid image updates.

  • If the design prints successfully, it is likely that the power was set too low on the previous print.

  • If you still don’t see the laser marking the material, please let me know

Hi @jenn2179. It’s been a while since Mike’s response and wanted to reach out to see if you were still having any trouble with the laser not firing on your Glowforge. I’ll go ahead and leave this open for another day just in case, and will look forward to any updates. Thank you!

Since we haven’t heard from you, we’re going to close this thread. If any additional questions or concerns arise, don’t hesitate to start a new thread, or email us at