I have 2x K40s, from different vendors, so they are a bit different (both digitals)
Both have the same time (1 month), and the same working hours. Both have been using always at 30% power, and both at the same time.
But one of them has stopped cutting, as it has a very low power. Have tried to cut at 30%, 50% and even 80% power (just a tiny 10mm x 10mm box), and I always get the “same” depth: just like engraving.
What should I check?
Also, I have ordered 2x MiniGerbil, that will be here this monday I guess. Should I install it before making further tests?
PS: due to strange circunstances, I can not contact or get help from vendor: he sent me it by error and I ended paying just 100€ for it.
I am checking my machines and the “broken” one is smaller: instead a 72mm laser, it has a 63mm one. It says nothing about power, but looking at description in his eb, some places says “30-35 w” in others says “40w”.
Notice that both machines where cutting at 30% power, and at the same cutting speed.
Ok, I will do it tonite. Any way there is not anything unusual. No strange noises… I will look for archs. Just the deep of the burn is not deep enough to cut.
Machine A: a 40w one, 700mm laser tube.
Machibe B: a 30w one, 600mm laser tube.
I always thought they were the same ones (a 40w), so I used both always at 30% power (cutting speed 6 mm/sec to cut 3mm MDF), and both were able to cut. So, A has been running at 7.3 mA and B at 13.11 mA.
Now, B has stopped cutting: I am now testing at 22% (aroud 10 mA) and needs around 4-5x pases to cut at 5 mm/sec speed.
Is the B tube “burn”?
I was checking tube prices and a 600mm one cost almost the same as a 700mm one. Of course, the 700 does not fit inside the box… can I make a hole in the box to fit it? Will it work?