Help, I have a Glowforge Plus. The liquid filler cylinder used to light up and bubble. It's not doing that now. Is that a problem?

[salvatore.internicol]

I”m new to Glowforge. I have a Plus given to me by a friend. When I first got it the cylinder device inside would light up and bubble. It has stopped doing that. Is that a problem? Can I fix it?

Any help would be appreciated as I’m very new to this.

Thanks Sal

[dklgood]

You can see pulses in the laser tube when the machine is firing the laser during a cut or engrave, but not when the machine is idle. Bubbles usually only appear when the machine has been moved or remained idle for long periods of time.

When you try to cut or engrave a file, what happens?

[salvatore.internicol]

The machine seems to work fine, I’m concerned as to why the bubbling stopped. Sounds like you are saying it’s normal and I shouldn’t be concerned. Thanks in advance!