engraving of the proximity sensor panel

Now it’s the turn of the proximity sensor engraving…

The proximity sensor is a radial net of thin copper wires, so my idea was to hide each wire behind a line of an engraving.
With this method, the proximity sensor is totally invisible, and it seems that the sensor IS the engraving.

Drawing and first pass of the engraving:

Second pass:

Washing the panel:

The final result:

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