viktor -
it partly depends on the medium, of course. i'll do some tests next time i have some spare anodized aluminum handy. i've got most of a galvo based laser engraving system sitting in a box waiting for a new pump source (it's yag) or maybe a a fiber laser. it's just money and time, but the shorter wavelength would give me a smaller spot than this co2 system.
Originally Posted by
VDX
Hi Swami,
what's the finest spot diameter or line width you can engrave?
If bigger than 0,05mm, then it would be problematic to measure grid distances or finest step differences.
With the laserdiodes I'm receiving spot diameters down to 0,04mm, with the fiberlasers down to 0,02mm - or 0,005mm (5 microns) with a beam expander ... then measuring the widths/differences or steps with a microscope is no problem ...
Viktor
suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.