I've been working with the struts in the AC 9 Roof Maker library 81(Strut12_1..Strut22_1). What I'd like to do is script them so that the upper end of them has a perpendicular cut rather than plumb or level(vertical or horizontal). This cut must remain regardless of the pitch. The bottom cut can remain as it is. I assume it has to do with the "Sin..Cos..Tan" formulas but I can't isolate the ones I need to create the perpendicular cut. Thanks in advance. Doug