Did you already have a look at the log files of your MrBeam? Or did you send a mail with the log file(s) attached to the MrBeam support team? According to my inspections of the Logfiles there seems to be rather much information included thus the folks @ MrBeam may be able to identify the culprit for this rather unusual behaviour (at least I did not encounter such a pause behaviour yet). Will be interesting to hear what the outcome is.
Thanks for the help, Benjamin. This might be really helpful for now and later. Meanwhile I got an e-mail by Mr Beam and they offered an exchange laser head, because it sounds like a problem with it. That's some really great service and I'm looking forward to have some kind of experience as you mentioned with your new laser head. Anyway tomorrow I'll be back home and have a look at the log files, because I really didn't remind that earlier.
Since a few days my Mr Beam stopps for cooling even every one or two minutes. This happens when I do simple cutting jobs on 0,8mm cardboard.
The template I cut worked fine till now and the laser head never needed cooling. Suddenly this cooling issue came up. Last night Mr Beam had cooling time about as long as cutting time making the working time double at the end. Very annoying and not bearable.
Did you receive an answer what happened in your case or did they just send a new laser head?
Does anyone else experience this issue?
Indeed I got a new laser head by Mr Beam.
I think this problem occurs by lasering certain materials. Some materials release lots of dust-like particles and the Mr Beam air vent is simply over stressed by high amounts while high laser intensity jobs. As a result dust collects all around the laser head. Especially materials with sticky properties support accumulating dust more and more. This way there will be a point when too much dirty covers the laser head and this cover stores heat. So the laser head cooling has too work way more while having less effect on dirt surfaces compared to its usual effect on cooling fins.
To me the sealing of the new laser head seems to be improved so i hope in future this problem won't appear again. Still I don't really know which materials have bigger or smaller effects. I think woods with high amounts of resin produce lots of dust with sticky properties while lasering. Maybe there are comparable components in cardboard that react gluey. And maybe the same goes for plywood with it's glued layers.
I hope you will find a solution quickly and maybe this helps you although it is late.