We have a 60w laser, has been running at maybe 50% of what it should for the past year, cutting 3mm mdf on speed 10! we have had them out to repair, changed tube twice, change power supply twice , aligned all mirrors, checked coolers (thats fine) changed a load of wired inside, (new motherboard last year) changed the plug and fuses and we are now at a loss! The machine is only three years old and had an average use of 4 hours a day, cleaned regular and gerenally looked after.

We are now trying to cut at speed 6-8 and it sometimes cuts, it sometimes just marks the surface! has anyone any ideas? its like its not getting enough power! and quite often just fizzled out, its also making a screeching noise when the power doesn't seem enough.

We even had the electricity company out to check voltage to the house, thats normal! no other electrical equipment has a prioblem

Cana anyone please help we are at our whits end with this!

THANKYOU!