I am trying to build the breakfast tray shown in the attached jpg file. breakfast tray table v3.skp (584.2 KB)
The instructions are sufficiently complete that I don’t need a drawing. However, before I make saw dust, I like to have a complete SketchUp drawing. Unfortunately, when I complete the drawing for the sides and back and then put the pieces together, I need to know the splay angle (measured from the vertical). The ends of the back are first mitered at 15 deg and then a router is used to create the fingers of a box joint; see scene “side clamped to router table”. If the joinery was a mitered corner instead of box joint, a 15 deg miter angle yields a splay angle of 15.542 deg; I built this box in SketchUp to confirm these compound miter numbers. I blindly thought if the sides and back were splayed at 15.542 deg, everything would fit perfectly. As shown in the scene “box assembled 15.542 deg”, I do not get a perfect match. I even tried a 15 deg splay angle and that did not work either. Ironically, you can build the box (missing the front) without ever knowing the splay angle. Any suggestions would be appreciated.