Struggling with stereotomy

[mklotz]

There are a wealth of roofing calculators on the interweb, e.g...

https://www.blocklayer.com/roof/roofeng.aspx

I don't know if they will be of help to your specific problem but they may be useful in checking the solution at which you arrive.

In my experience, solid geometry problems have always been easier to solve if expressed in vector form and then attacked with analytic geometry.

At any rate, good luck with your work.

[Philip Davies]

Thank you. Unfortunately, although I did further maths, vector analysis was not included. I have never used roofing tables, but my ambition is to master the stereography traditionally used by carpenters, most notably by the French master-carpenters, the Compagnons, although they’re not the only ones who are good at it.