Yeah this build up is pretty bad. I have used canned air on it but it’s a difficult angle to reach for a thorough cleaning. I did disconnect that cable and reconnect it, it was pretty easy to do even though there is the build up. Did you see the last email I sent over by chance?
For our next steps, I’d like to suggest replacing some components of your Glowforge. I’ll need some personal information from you so I’ve just reached out to you via email.
I’m going to close this post so our conversation can continue there.