Jeffrey Michael Wilson
02-26-2020, 11:59 PM
HELP!!! I was in the middle of a Job and 50 watt blue and white chinese laser....First time.....quit firing, but still tracked....just no beam. No door switches on this one, Emergency power switch bypassed. It would go through all the motions...just no burn from tube. Then Blew the main Fuse.....Replaced fuse, it fired and cut as usual....for a few seconds....then..blows fuse, no longer goes through the motions with no fire. Blown fuse..I figured probably power supply.....Got a new one.....put that in, and hooked up to old tube(mine was 5 years old....pretty good, still worked well) got it all set up. fired a few seconds, good clean no power loss ....then blew fuse. So I got a new tube today and put it in....did all the alignment///pulsed a few million times getting mirrors right...... no problems.....everything moving OK.... then did lines to set focal distance.... no probs....then got ready to do my test piece. I have the laser at 75% Max Power....... I was cutting wood at 5 speed and 95 power, in software program.....It went for maybe two seconds.....blew fuse, I put in another fuse....upped from 2 amp to 5 amp.... Turned the power down to 75 in the program, and 5 speed. It lasted maybe 3 seconds this time. Everything is well insulated, no popping or gapping or smoke or smell....just blowing the darn fuses. Pump and air seem OK......And it's only blowing when I am firing. I was in the middle of a big job I was already paid for.....this isn't Great.... HELP.....any suggestions would be vastly appreciated. I'm thinking next of firing at really low power, 10 or so to see if it blows a fuse.....running out of fuses....