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The Deep Engraving feature allows an object to be marked multiple times at different Z heights. This is typically used to create deeper engravings by removing material layer by layer.
 
The dialog can be opened via Mark → Z‑Settings.

Figure 524: Deep Engraving Dialog                

During the marking process, the object is marked repeatedly while the Z position is incremented by the defined Step value after each pass. The Z position for each marking pass is calculated as follows:

1. Loop: Z = Start

2. Loop: Z = Start + Step * 1

3. Loop: Z = Start + Step * 2

...

i. Loop: Z = Start + Step * ( i - 1 )

...

n. Loop: Z = End – Step

The last marking is performed at Z = End – Step. Since this final pass removes material to a depth of Step, the resulting engraving depth reaches the specified End value.

For example, if:

Start = 0 mm

Step = 0.1 mm

End = 0.5 mm

the object will be marked at the following Z-positions: 0 mm → 0.1 mm → 0.2 mm → 0.3 mm → 0.4 mm
After the final pass, the total engraving depth is 0.5 mm.

The configured Z-Settings are stored within the job file.