Engraving image on one of my Cabinet Scrapers
Opt Lasers
PLH3D_HT-50 (5 watt diode)
No metal prep
Opt Lasers PLH3D-XT-50 (5 watt diode) 30 x 40 micron beam
Extremely high Laser Fluence
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What does that mean?
@TravisGood
Laser fluence describes the energy delivered per unit (or effective) area . Within the community of laser scientists and technicians, it is very common to define fluence in units of J/cm2.
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@jkwilborn Thank you
yes $1000 CA
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@TravisGood Ahhh
plexglass
That is really neat.
Yes, it’s a simple demonstration of what I’d call “intensity” or how concentrated the laser beam power is. This visual representation was my way of asking if this is what “fluence” meant? Fluence wasn’t a word I was familiar with yet you produced such remarkable results with “Extremely High Laser Fluence”.
If my image was a poor way of asking then just ignore it.
In any case, your results are impressive.
excellence visual 
I wasnt wearing my glasses when first looking at it
In heating, we use W/cm2 as unit for “power density”
A high J/cm2 can be obtained by applying a certain power density over a long time…I think the laser you describe has an extremely well focused beam resulting in a very high W/cm2
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Yes it does
High precision lens with true optical power 5 watts at 30 x 40 microns
Laser and Lens hand Crafted in Poland
Can be done but how long did it take to etch 
Sure you can engrave to steel and even some color with a diode. But it takes a looooooooooong time.
Did i say loooooooooooooong 
Thank you for the encouraging comments
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So mutch you can with the diode. It only is slower
Owell slower i belive aromstack has a 70 watt optical diode
Are these images done with the smallest dot size or did you put the laser out of focus for larger size?
With what speed did you run these?
Focused
400 mm/min 95% power 847 DPI (beam is 30x40 microns )
Totally brilliant!..and inspiring.
But if I may ask, what occurred on the front calliper to give that pattern.
May I ask…“My first writings on this forum by the way” If I wanted to recreate such detail/resolution with 0.08x0.08 focal point, at what dimensions would the piece need to be and what viewing distance would best suit?
No equip bought yet but in talks with LT for something with training wheels.
Pete