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Here is the picture of my tube anode. Again I have only 40 hrs on it! May be it's normal?

Here is my basic setup:

24"x48", vacuum table, Air assist.

Water flow is good with no bubbles.Water pump was purchased with requred waterflow for the tube. No arcing, I checked it. High voltage...

We actually using software energy control. We replaced low cost potentiometer with multi-turn precise potentiometer and use Z to regulate laser output.

May be I did not explane clear enough what...

I have exact same setup. My tube has the same marks and I only have about 40 hours on it.
Can you share your experience with this setup? Do you have any problems with it? Unstability etc. I have a...

If we ever get a new power supply, we will try to fix our old one!

Sorry.

Did not quite understand what you mean.

Yep!
Bank transfer.

I can say that I got mine from Steve Luo for $1106.00 shipped. Sounds cheap but look for his service.

I have big problem with his system since the beginning (see my post...

We think laser tube itself was a brand new (at least it was look like it). The power supply, however, looked old. It had scratches all over the body. Fans were full of dust and it was a lot of dust...

We paid $1106.00

Just to clarify.

My laser system exactly the same Emission Technologies sells. 50wt laser tube and matching power supply. Does anybody have any experience with it?

Hi everybody.

I have a BIG question concerning my laser cutter. I got my 50wt laser tube and matching power supply from Steve Luo:
http://www.made-in-china.com/showroom/steveluo66

Now I have a...

Also there is a wire connecting contact close to output hole of the laser and one of metal pipes where you connect your water pump. This wire not soldered just coiled around contact and the pipe. ...

We got 50w laser from the same chinese guy Steve Luo. You gave us a link for this company.

Thanks,
George.

Paul, What is the right end for high voltage? The instructions does not say anything about it.

Also, what type of water pump do you use?

Thank you,
George.

Paul,

What criteria did you use choosing your drive system?
What gear ratio did you use?
Thank you,
George.