laser stopped cutting

General discussion of laser machines

laser stopped cutting

Postby Rayancaleb » Mon Apr 16, 2018 11:51 am

Hi

I have laser machine 40w with lets say max 10h of working, i was cutting some work and after machine ended things get weird. Machine doesen't cut anymore, i have checked laser tube for any cracks or anything but it seems ok, but when i measure mA on laser tube it shows max 1mA even when i have 100% power. From 0-10% power current changes from 0-1mA but from then on to 100% it stays on 1mA, is psu unit dead? or what would be cause for that.
water flow is good and cooling is working normal, everything else is working as it should only laser beam doesent come out of tube. When ampermeter shows max current 1.2mA there is visible plasma in tube but very weak. Shouldn't there be at lease 15mA or 20mA coming in tube ?

Please help.

I didn't find the right solution from the Internet.

References:-
https://bit.ly/2HCIs8y
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Thanks
Rayancaleb
 
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