Platonic Solids or Archimedeans Solids Tetrahedron Geometric Development

This script returns the compound saw miter and saw blade bevel angles for cutting Platonic Solids or or Archimedeans Solids out of wood.
Each edge of the Platonic Solid or or Archimedeans Solid is a hip rafter.
Roof Surface Angle E of the Tetrahedron = 1/2 the corner angle of the face of a Platonic Solid or Archimedeans Solid.

Equilateral Triangle = 30
Square = 45
Pentagon = 54
Hexagon = 60
Octagon = 67.5
Decagon = 72

Hip Rafter Backing Angle B of the Tetrahedron = ( 180° - the dihedral angle of the plane) ÷ 2 , between faces of a Platonic Solid or Archimedeans Solid for polygon faces of the same type. Or the Hip Rafter Backing Angle B of the Tetrahedron = 180° - the dihedral angle of the plane - hip rafter backing angle of opposing polygon face. This script will work when the plane between faces of a Platonic Solid or Archimedeans Solid are the same or different types of polygon faces.

SBE Builders

Holy Grail of Roof Framing Geometry & Trigonometry

Book I & Book II. These roof framing books were written to make complex roof framing simple..

The Art of the Line for Carpentry

The book includes step by step instructions on developing stereotomic drawings on Art du Trait de Charpente, Trestles, TrÃ©teau Ã devers, Canted Trestles, Louis Mozerolles' Joiners Table, Sawhorses, and the Saint Andrews' Cross, twisted 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.

HG IV Circular Work in Carpentry

The book includes step-by-step instructions on developing stereotomic double curvature drawings for circular work in carpentry. Some of the techniques presented in this book are thousands of years in the making. As carpenters, we shouldn't have to re-invent the wheel each time we are faced with new challenges. There is a likely hood that someone, that came before us, has already refined a technique that we can use today. The tools might have changed, but the piece of wood that it is twisting and turning remains the same piece of wood.

Rafter Tools+ for iPhone

Rafter Tools+ is a rafter calculator for complex roof framing angles that other roof framing calculators don't offer.

Stair Tangent for iPhone

This iPhone app is for rough frame carpenters that don't build stairs everyday, but could use an stair app calculator to check their stair building calculations.
Build a set of stairs that you are gonna be proud of.
With Stair Tangent you can elimenate cumulative math errors when building - constructing stairs.

stairtangent.com

Crown Molding Tools
crownmoldingtools.com

Roof Framing Geometry Blog

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