GD&T datums for organic shapes

[hugou]

How on earth do you set up datum planes for a part with no holes or mounting details and only one small flat surface and one straight edge (neiter of which are really significant features)?
Any advice would be gratefully received.

 

[KENAT]

I'd suggest looking into datum targets.

You may be better off posting in forum1103.

Strongly suggest that if you re-post there you state what standard you are working too. Also Red Flag this post for deletion.

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(probably not aimed specifically at you)
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