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Thank you Mr. Williams for your reply, I've done that but still the lines remain, and they start at inch 1 until 10 approx, it's very frustrating. Even if i do a double pass still the same.

Dear members,

Need help with my mercury laser, when engraving photos (see attached pic) there always banding lines in one area somewhere between inch 1 until 10 then they disappear I never had...

Well I did all sorts of tests but the the only thing left is split beam (as you are mentioning) how can I fix it when i don't see it in any of the tests. No sign of it. The Synrad company in Germany...

Well I did tests all day today and what I've managed to find is that after some time of cutting, the laser beam starts to fall from the center towards bottom of the carriage hole, even in mirror...

Thank you very much, this is the area where I need your help as Dave mentioned maybe it is the coupler that is causing it (which I don't know what it is) or the beam shape. While aligning it i don't...

Before it was OK, the problem started after it was refurbished, I didn't noticed it earlier because it cuts very good for 10 to 15 minutes, but recently I had to cut small pieces on acrylic for long...

Changed the carriage mirror still the same thing, its not the mirror, nor the lens any suggestions.

Today I'll get another carriage mirror and do a test as the only suspicion is on that particular mirror I will let you know. Thank you all.

Well yes as I mentioned in the beginning of the thread I've changed the lens to a different one, no issues while engraving only cutting, it can engrave for days and not get hot. The problem starts...

Thank you all for your help. I've checked the mirrors from 1 to 3 they are OK center beam everything, as for the cone I've suspected that too so to make a test I've removed the cone for a test a...

Any help...

I've checked it looks ok, even I've changed the lens to the 2" for but still the same.

Recently I've refurbished the tube in my mercury 25w it's all good, but after a while the carriage is getting very hot and the cutting power is decreasing, I've checked from the cooling of the tube...

Thank you Dan for your contribution even i think so I've opened the tube didn't see anything suspicious in the RF Drives and closed it but tomorrow will opened it again and try smth even I really...

Thank you Tony,

Thank you Mike, as you saw the image it looks like it passed the outline of the letter and the line also, not sure what it might be but when it comes to cutting it's half the power maybe the rf...

Dear friends

Need your help, i have a mercury 25w for some 9 years now a had no problem with it at all till two days ago. It lost half or more of the power and engraving is very bad. (image will...