Affichage des articles dont le libellé est Ebay 50W laser problems. Afficher tous les articles
Affichage des articles dont le libellé est Ebay 50W laser problems. Afficher tous les articles

lundi 31 août 2015

Ebay 50W laser problems

I need some help and verification please.


I have a 50W ebay laser. It's the big blue one that's similar or the same as a SH-350.


I've been using it all weekend but tonight things went very VERY wrong. I was engraving a glass when all of a sudden the laser stopped engraving. About 5-10 sec later I heard the worst noise ever. I knew right off the bat the laser was arcing. I shut everything down with the emergency stop button. The FIRST thing I checked was the water pump and it's flowing perfectly fine. I have an active 1/4hp chiller that was working properly also maintaining the water at 20-21*C.


I've completely gone over the tube and I can't find a single break over the whole thing. I've checked the HV wire and it's completely fine also. Well I needed to verify that it was indeed arcing because I didn't actually see anything spark. After triple checking everything I powered everything up and I tested the laser using the pulse and sure enough the laser arced right under the HV side of the tube.


Now what do I do?


I can't find anything wrong with the laser tube. The ONLY thing I noticed was some condensation on the hoses because the water was too cold.


After raising the temp alittle bit and waiting for the condensation to completely evaporate I decided to do another test and now I get NOTHING from the laser. Nothing when I push the pulse button and nothing when I push the test button on the power supply.


Are there any more checks I can do?
Is the tube and power supply gone?


Thanks for listening.
(.-.)


Ebay 50W laser problems