Established ### with tray out?

In wanting to forge on thick stone, I will need to remove the tray. What calculations have been set for measurements with tray out? For example, I currently can only do the trace function, and it asks for two different numbers: Thickness and height.
What is the GF designers’ given number for distance from bottom of GF without tray to laser head?
Also, I am unable to change the number of passes from 1. It stays on 1.
Thank you. Pb2u2.
(Andy in Paducah…yes, I am the least skilled owner of a GF. Your patience is appreciated!)

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You might want to start reading here:

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Emphasis on start. There’s a lot of reading about engraving and height in general. Tell your loved ones that you’ll see them in a few days, get a drink and a snack, and just sit down and dig through the forum. :slight_smile:

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@hansepe @evansd2 Thank you, lots of info found on the tutorial.
My comfort zone is growing with each piece of shared knowledge.

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You can (and should) test before committing a piece of material - using something of similar height, with a scrap of other material, and settings for that scrap, just to check focus height.

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