Glowforge Airflow

My Glowforge stopped printing mid project. The message I get says that the fan is not providing sufficient ventilation or something like that. I turned off the machine and then when I turned it back on it tried to move, but made a very loud bumping sound. I turned it off. Help!

Welcome to the forum.

How old is your Glowforge? Have you cleaned the air assist fan completely recently? Do you have the Glowforge filter or are you venting outside?

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It is two years old and my students use it almost daily for two-three weeks. We vent it outside. I have never cleaned the air assist fan. Not sure how to do that?


Those instructions miss out on a really important step. Flip the carriage plate over and you’ll see a metal chute on the underside of the fan. Even if the top looks perfectly clean, that chute can be almost totally blocked. Stick your air can, or a qtip, or a pipe cleaner into the chute from both sides and get out what you can!