From: Fred Nurk on
Alois Steindl wrote:

> Fred Nurk <albert.xtheunknown0(a)gmail.com> writes:
> <snip>
>> At the centre of the base triangle.
> How far ist that from the edge?
> <snip>

2 / 3 of the way from a corner to the midpoint of an edge.
I get it now - thank you.

Fred