This is going to be a little warning to others using laser cutters/engravers….
A couple of weeks ago my X700 from china caught on fire during a job, but let me be clear about who’s to blame for this…. ME.
The machine is placed in my garage, and i usually sit in the next room while it does its thing… Even though i know not to leave the machine alone while its cutting, i have become pretty relaxed about the machine beeing safe to use during the years ive had it.
I was going to make a simple, small name sign for a house in white acrylic. After the first test i saw that there was some deforming of the acrylic where the acrylic touches the honey-comb surface, so i decided to place some wooden blocks under it to lift the acrylic a bit so that the deformation didn’t happen.
Then i had another problem… The letters contained some small parts that fell trough the honey-comb and dissappeared, so then i had this genious idea to put something under to catch the small parts… Now in hindsight a cardboard box was probably not the best choice, as it ends up directly in the lasers path….. (Note to self: Stop beeing an idiot).
I started the cutting and sat down in the next room and after only a couple of minutes i went back to see how it was going. What i saw was a large flame about 30cm in diameter and about half a meter tall right in the middle of the machine… Luckily i keep a fire extinguisher close by and quickly put out the fire.
Here are some photos of the aftermath:
You can still see the residue from the powder from the extinguisher. Luckily i didnt have to use it to much to stop the flames.
The acrylic got burnt to a crisp.
Underneath you can see the culprit that caught fire.
The lesson to take from this is that whenever you try something new with a lasercutter… Watch it like a hawk.