Laser burnt a hole in the mirror
Posted: Sun Mar 12, 2017 5:05 pm
So my k40 conversion to x7 DSP and a 45w (50w max) LO tube and 40-60w LPSU is done and working great up to just now when the second mirror (on the gantry) just had the laser burn a hole in it and crack. It looks like the laser burnt through the reflective coating.
The mirrors were clean. The first mirror from the laser is still fine. I had put a new mirror and lens in the LO head.
I was running the tube at 16mA (18mA is the max for the tube). It had been running for about 5mins when it went.
Is this just the result of a bad Chinese lens or is there something else going on?
Any recommendations on what mirror to replace it with. (20mm)
Thanks
David
The mirrors were clean. The first mirror from the laser is still fine. I had put a new mirror and lens in the LO head.
I was running the tube at 16mA (18mA is the max for the tube). It had been running for about 5mins when it went.
Is this just the result of a bad Chinese lens or is there something else going on?
Any recommendations on what mirror to replace it with. (20mm)
Thanks
David