Hi, I purchased a 50w shenhui 3050 laser engrave about 6months ago and it has been working very well.
But recently it stopped firing, I tried to get the problemdiagnosed by the supplier but I’m not getting any replies from them. So I decidedto replace both the laser tube and PSU. But after replacing the PSU and thetube then aligning I’m now getting dashed lines instead of nice hard lines.
Could this have something to do with the TH or TLconnections on the PSU?
Is the new PSU faulty?

Is the new laser Tube faulty?
Please help