I previously posted this in the wrong section...sorry if you've already viewed it!
Hello all!
I have searched the forum and read many posts, but cant seem to find a definate answer.
I have a chinese Laser Cutter SH350 D (or G) bought in April 2014, over the winter months I found I was having to increase power and/or slow down speeds to cut through 3mm Plywood.
So I cleaned the mirrors and lenses, and aligned everything.
Then when I went to do some engraving - speed 25mm/sec power 60% - it began well but then after a few minutes the lines became lighter until there was no laser at all!
I would restart the PC and the Laser Cutter, start again and the same would happen after another few minutes engraving. The laser tube glows when firing but when I place paper between the tube and first mirror it does not even mark the paper!
So my question is...am I correct in assuming the tube (which is 12 months old ) is failing or is it a power supply fault? ...or something else?
I am looking at a 45w CO2 tube and maybe a 40-60w Power Supply from Lightobject.com.