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These are the one of the worst possible products to engrave--
--Fiber lasers don't like copper much, especially that which is plating stainless.
--Stainless doesn't like diamond tools, they just barely make a mark and the SS wears them down quick...
I have 3 very similar copper cups I test engraved for a customer. Could barely see the diamond etching, and the fiber would go from a dark brown etch to a bright etch to no etch, all while running the same 1" diameter, very simple logo.
However-! I just drug one out and ran a simple Cermark test, using my 40w LS900, and I got a very nice mark!
It measures about 1/4" tall and 3/8" long-- and I scrubbed it pretty good with a red 'metal' scotchbrite pad and it passed the test!
copper.jpg
I'm surprised actually, but it works! (LMM-6000 Cermark btw)
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ELEVEN - rotary cutter tool machines
FOUR - CO2 lasers
THREE- make that FOUR now - fiber lasers
ONE - vinyl cutter
CASmate, Corel, Gravostyle
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