[Laser Larry]

I have a 80w 1290 chinese laser that had been working fabulously for 8 months straight off the boat... now I have no beam... I have replaced the tube, power supply and controller with a friends... not a bit of luck.... I have put all my components into his laser.... same same as me....and all the components work... I have a beam...
Put it all bits back into my machine... no beam...
Any thoughts...
Yes I have contacted the manufacturer and they are as confused as I am... they suggested all the steps I have already taken...
HELP...

[gweikelaser]

Hi
Did you check the water protector? water cycle

I have a 80w 1290 chinese laser that had been working fabulously for 8 months straight off the boat... now I have no beam... I have replaced the tube, power supply and controller with a friends... not a bit of luck.... I have put all my components into his laser.... same same as me....and all the components work... I have a beam...
Put it all bits back into my machine... no beam...
Any thoughts...
Yes I have contacted the manufacturer and they are as confused as I am... they suggested all the steps I have already taken...
HELP...

[Laser Larry]

I have checked the water cooler ... it is cycling ok... there is a sloppy fitting on the protection wire...but still seems to be connected.... will check further tomorrow...thank you for the suggestion...

[gweikelaser]

Besides this possibilities, you can consider the controller question
Any others let me know

I have checked the water cooler ... it is cycling ok... there is a sloppy fitting on the protection wire...but still seems to be connected.... will check further tomorrow...thank you for the suggestion...

[Bec Weir]

Larry,

If you need to use my machine to finish jobs, let me know, huh?

Bec

[Bec Weir]

Have you checked the fuses and laser output settings in Lasercut for your machine?

If your laser is not putting out a beam, what does the mAmp gauge say when firing?

If the laser is putting out a beam, have you checked your final mirror and lens?

Bugger....

[Gweikelasers]

Many possible. Usually the reasons are water circulation problem, tube setting up problem or the magnet switch position problem.

[EXLASer]

Hi，
Reasons of no laser (take our laser machines for example):
In the case of you can not see the laser beam inside of tube by eyes :
1. water circulate not good , check water chiller work normal or any leak or block through the water pipe .
2. water chiller alarm plugger should connected with the machine . On the right side door there is a plugger ,which are intend to connected with the chiller .Or no laser get out .That is related with the water protector , this part might be broken sometimes .
3.The wiring should be good without disconnect . Check the PUS ,controller and all wirings or pulggers.
4.Panel /laser set /laser power is 0 or weak figure .Input 50% or 80% or 100% test .
5.PSU or tube broken . In this case , intall a ammeter in serials and check the output current of laser tube . With 60W tube , the current should be at 23-25 mA .If no current
,that shows PSU broken . If there correct current but no laser firing , tube got problem .
This methods is dangerous and should under permission and guide from manufacture .
6.Controller broken .Test current by ammeter while firing .

In the case of you can see the laser beam was emitted inside the tube by eyes :
7.The optics might not be good . Check the beam alignment with the manual details .

Mary Lee
XYZ Machinery

[Exsecratio]

Flow control sensor
Door switch

Both are hold open circuits so can be bridged to test

best wishes

Dave

[Bec Weir]

I have spoken with Larry and he says it was a loose connection to the flow meter.