I recently engraved shot glasses. My settings were
Speed:800
FULL POWER
340 Lines
3 passes
I also used painters tape to mask the glass. I heard that was ideal to prevent cracking.
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looks great.
I did my glasses with some dishsoap on them. They have been a big hit so far. Both styles.
I did the tall tapered ones, and the Barconic square ones.
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Welcome to the forum.
Thanks for sharing your settings and results.
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Another great post from the past!
#necrogame
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I just engraved some of the tall shot glasses for a bonus wedding gift.
they turned out great.
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Where’s the pic! We want to see!
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Yes, we want to see! 
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Well confession time. I wasn’t smart enough to take a pic. however when Iget home I’ll snap a pic of my Fireball shot glasses. 