Study of Chamfer Cut or Shelf Cut
at intersection of
Valley Rafter Peak with Principal Purlin

Model of Principal Purlin housing to accommodate intersecting Valley Rafter Peak Model of Valley Rafter Peak ... end view depicting planes of the Compound Angle
Model of Valley Rafter Peak with Shelf Cut, Tenon and Layover Extension ... view of face abutting the Principal Purlin                     Model of Valley Rafter Peak with Shelf Cut, Tenon and Layover Extension ... view of plumb face abutting opposite hand Valley
Valley Rafter Peak intersects Principal Purlin
Shelf Cut or Chamfer Cut extracted from the Valley Rafter Peak
Compound Angle and Shelf Cut at the Valley Rafter Peak
Compound Angle at the Valley Rafter Peak ... Parallel Square Cuts
Compound Angle at the Valley Rafter Peak ... Exploded View of Parallel Square Cuts
Tetrahedron extracted from Compound Angle modeling the Shelf Cut at the Valley Rafter Peak
Development of Tetrahedron modeling the Shelf Cut at the Valley Rafter Peak
Joe Bartok