Hi Chri, for long pieces maybe it could be possible to err on the "more spacing" side by using the maximum of width or height to make each cell size.

But does an object duplication and rotation mechanism sound like it would do the job for you? Like select an object, run an "AutomaticLayout" command, and it generates your diamond of 9 copied and rotated objects for you, then you can Make2D or export to PDF as you see fit.

- Michael

Yes , Michael , i agree with your explanation . it will do the job .

Perhaps , it could be a good way , to wait others users opinions !

Chri