I bought an 80W Chinese red laser With Ruida 6442.
I am trying to engrave small (1.5mm height) text and it missing details. I have tried various settings the best working is 300 speed, 25% power, and 500 Lines per Inch.
The lens is 18mm FP 50.2mm - maybe buying a new better quality lens would help? Or select the one with a lower FP 38.1mm or even 25.4mm?
Or it’s simply a Chinese-quality laser and I can’t do anything about it?
I have no direct knowledge here! But I personally bought a 100W laser because I wanted to cut more than to engrave, and am expecting lower engraving quality as a tradeoff for higher cutting power. I have read that higher power tubes generally have lower resolution because of the greater energy needed to “strike” — @donkjr were you the one who explained this to me?
Unrelated to your question: I didn’t at first see the fold-down for “Laser Specifications” and would like to warn that the CW-3000 is not a chiller and except in a cold climate is a quick way to destroy a laser tube. It’s a travesty that they are ever sold for lasers. From the K40 Intro linked at the top of every page, see Cooling the K40 laser tube which describes this. I know it’s not what you are asking about in this post, but this knowledge might avoid destroying a tube prematurely.
Thanks for your response. I have ordered, lower FP lenses will let you know how much it helped.
CW-3000 yea… it sucks. I have disassembled it and to out the radiator and put it in a separate 50L water tank. So in CW-3000/laser system flowing distilled water and around the radiator cold water from the “vell”, if outside +30C it might need a few water changes, its sucks but at this moment don’t want to spend 600$ real chiller.
What you are getting is the result of excessive speed - notice your verticals in the last 2 lines are fainter/missing because the laser does not have time to “ramp up” the power at that speed - try slowing down to +/- 100mms and see if that improves it. A shorter focal length will likely help as well but I would suggest checking your speed will be as effective. Just FWIW. Cheers
So I bought 25.4mm focus length lens and it did quite a trick. Of course, it does not match lasers for mainly engraving, but 0.8mm letters engrave quite nicely on glass.
