ULS Super Resolution Accessory
Does anyone have the ULS super resolution accessory ($2,650)? I intend to do a lot of photos on marble, granite, glass and am wondering which is better, 40 w with the resolution accessory or 50 w without as the cost would be equivalent in a vers laser 300. Any advise would be greatly appreciated!!
Tim Stamplis
High Power Density Focusing Optics
I'm not sure if I can tell you which to buy but there is interesting info in the review linked on the site. The article is from Engravers Journal and written by Steve Spence. If you go to products, then there is a link "Download VersaLaser Product Review."
Seems the lens assy refines the beam to smaller than .003 allowing finer resolution. It is an interesting option for some applications but I can't say that you would "need" it for granite, marble etc. I understand that you can do pretty good photos using 150-200 dpi with conventional optics.
There is a brief mention of photo engraving in the Review.
High Power Density Optics
Hmmm ... when I saw the jpg from Mike I realized why I was confused. Epilog has their own product which they call Radiance optics. Seems the implementation is different but the end result similar to ULS. (If you go to the Epilog site do a search on Radiance and you will find the technical info faster.)
I don't actually see Epilog put a number on the spot size. In Steve Spence's article he says ULS gets a .00125 spot size. Curious that ULS and Epilog are both using the same Aztec calendar graphic to market their systems. I have the Epilog sample in front of me. The resolution is very impressive on wood; I assume the ULS version is comparable.
I would like to see how dark the ULS can mark stainless. Steve says that on the VL-300 at 15% speed the mark is not as dark as Cermark. I do like the dark black mark that Cermark provides - I don't care for a greyish or "washed out" looking mark.