Originally Posted by
mwbaker63s
Hi
I am hoping the clever people who hang out on this forum can help me with a issue I am having with a new laser. I have taken delivery of a KH750 details
RDC6442G controller
KH Lazer Tube - 1000mm x 50mm 60w
Software - RDWorks V8
The issue I am having is that the laser power is way down. When firing the laser tube glows pink, but placing a piece of plywood in the beam on the second mirror only produces a weak burn (See pics) The depth of burn at 10 second is 1mm.
I have checked the beam path and it in in the middle of each mirror and the lens.
I have cleaned the lens
Using the software I have set the power to 90% min and 90% max at 3mm/s but all I get is a light mark on wood.
Setting the power to 90% on the panel and firing the laser via pulse makes a faint mark.
I have checked the water flow and temperature and have run the tests at 20 deg C.
I cannot see any damage on the tube, but that is always a possibility.
Before taking on the cost of a new tube I am looking for any suggestions of settings or tests I can run to prove it is the tube.
I have been looking for a replacement tube but the 60W 1000mm x 50mm seems a rare beast, so if anyone knows of a supplier or manufacutrer in the UK or China , information would be greatly received.
Thanks for any responses.