Hi Vigy,
To make the holes, they are first contained within the surface then expanded to the edges, this makes the remaining surface act as one, and "self heals" as per attachment.
Its probably best to build the mitre ends as 3 part component if you wish to use Dynamic Components
At some point though your efforts may be best spent on the ruby code. Its fairly simple to move an edge to form the mitre using a script.
I have considered your concept of engraving, which is to develop the hole further, attached is a reversed moulding to build a cutout in a panel.
The biggest problem with DC's is that they soon become memory hungry and "clunky".
Cheers for now
still experimenting
Philip
PS
after a weekend check the mitre box in wood working forum for update
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