Hi, I had a small contained fire inside my GF tonight. I had a 4" cut circle piece of clear acrylic that I thought was half an inch thick. I have a bunch of cut shapes of clear acrylic that I keep in a bag that I use for display pieces for jewelry and whatnot. I grabbed what I thought was .50 inch but turned out was .25 inch. I had masking on the backside but not the front side. To make it easier to see the piece inside the GF, I had a piece of thick white cardstock underneath it. Which is something I’ve done before, and I’ve cut paper many times before, and no issue with the right settings. For this, my goal was really just to cut/engrave stuff into it that piece so it would go part of the way through but not all of the way through. Basically just to give it a groove in the center and a small area to set a small item onto it for product photos.
I used “uncertified material” and set it to .50 inch. Because I assumed I had .50 inch in there, which from my experience needs a lot of passes and a slower speed/full power, I had the speed down to like 125 and 3 passes, full power for both the cut line and engrave. The cut line, was fine. Looked like it went most of the way through, which is what my intention was. The engrave area started next and it looked like it was operating fine, so I went into the other room.
I went back in a couple minutes later and noticed that a small fire had started. I immediately turned it off, opened the lid, which didn’t extinguish the flames, and put the fire blanket onto it.
It appears what happened was when I thought I had .50 in there, I actually had .25 inch in there, so the number of passes and speed were too much/too low for what was actually in there and by the time the laser had ended up ablating away the acrylic all the way through, it started into the paper or perhaps started to try to engrave the crumb tray directly, either way, it created a spark and the acrylic was now on fire and melting.
I have already sent an email to support. I THINK I may have gotten to it in time, and hope I have avoided any serious damage. Nothing inside looks to have taken any damage but I’m not an expert at this so I just don’t know. The print head was directly above the flames when I got to it so I’m wondering if the print head and/or lenses sustained any damage and how would I even check for that?
Right now the machine is off and unplugged. There doesn’t look to be any sort of damage to anything inside. What steps should I go through now to see if its working properly and safely? It doesn’t look like it was bad enough to warrant any sort of service but I just don’t know what the protocol for this is.