We actually have one of these machines at our shop. Great machines so far, but I've only worked there for 5 months now. The only problem that the mark II has ran into is a mechanical failure of the shutter where the shutter broke the metal stop. Mazak came out and replaced it for about 14-16...
(excuse me, I'm trying to learn and clarify)
So right now there is a leak you're trying to find, you took off the vacuum pump and it has created "absolute" vacuum, but when you attached it back to the laser tube, instead of holding it at a value of 270, it is running to 480. Foostrap says that...
At our shop, we call this stuff "Red Scale." It is possible to cut through it but we usually have to slow down the feedrate and adjust the cutting conditions of the laser accordingly at least on the two 1997 3000W Mazak lasers with FANUC controllers (fixed foci). A fellow laser operator told me...
