I have a feature in the shape of a hexagon and was wondering if I could use a hexagon symbol(similar to the square symbol) instead of dimensioning across the flats.
You could, but I very much doubt that it follows any dimensioning standard. I would just dimension across the flats or a in/circumscribed circle, along with a 6X 60deg dim.
we typically just dimension accross on set of flats and add the text "hex" to the dim (i.e. .050 HEX).
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