Some monasteries and barns built in the middle ages have canted hip rafters with jack rafters that have upper and lower claws. The roof framing Axioms can also be used on restoration work on buildings built in the middle ages by the monks and Knights of the Templar. These drawings will also allow a carpenter to install the Saint Andrews' Cross on any roof. There are examples of developing the geometry for the Saint Andrews' Crosses on hip rafters plumb to the earth, hip rafters canted into the short plan, hip rafters canted into the long plan, and hip rafters rotated 45° from plumb.
These drawings of developing the Saint Andrews' Cross need to be studied thoroughly before developing the Saint Andrews' Cross on trestles.
#HIP RAFTER HOW TO#
There are 500 plus French art du trait of Charpente and German Schiften Geometry drawings with step by step instructions showing how to develop the Saint Andrews' Cross on the fold- down roof surface. With this base drawing it can be used for canted trestle legs rotated into the long plan, short plan, with plumb trestle legs, or plumb legs rotated 45° from plumb. All of the Saint Andrews' Crosses will be in the same location on the drawings and the cuts on the Saint Andrews' Crosses will be dependent on the rotation of the trestle legs. I've developed a Trestle Base Geometry drawing that can be used for a combination of trestle drawings with Saint Andrews' Crosses. You'll also find theories on hip rafter shift-offset, standard roof framing kernel trait drawings, German Schiften DP-Shadow Line techniques, folding net roof surface and net plane geometric development, when hip rafters collide, the Warlock Cut, and developing upper and lower claws on rafters using Axioms. The book includes step by step instructions on developing stereotomic drawings on Art du Trait de Charpente, Trestles, Tréteau à devers, Canted Trestles, Louis Mozerolles' Joiners Table, Sawhorses, and the Saint Andrews' Cross, twisted crosses.
This book is a subset of the Holy Grail of Roof Framing Geometry & Trigonometry books.
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