Hi everybody,
I have bought the lxj1390 chinese laser machine 80w and now i regret the instant when i bought it.
First, i have used the machine for about 10 minutes tests and the laser power supply was blown even though the ampermeter didn't exceed the 24ma.
Second, i purchased a new power supply, and cut 3mm acrylic at 55% power and 15 speed. I engraved a picture, and made mdf cuts, everything was very good. I used the machine for about one hour tests. I shut it down and never used it for a month till today. I tried to cut some acrylic and the surprise was loss of power and intermittent laser (sometimes fires othertimes not) .the ampermeter reads 6ma also power settings is 55% and when the laser is intermitting the ampermeter reads zero, goes up to 6 then drops to zero...
Please may you inform what might be the cause?
Best regards
Baligh