[O.B.Left]

Ok I just realized the 1-L-18 animation didnt make the move to the new format.


Here is an Einstein like mind experiment to try to illustrate it conceptually.

-Imagine a square shaped, school type wall clock.
-take it down off the wall and snap off the hour and minute hands, leaving only the second hand.
-the clock face is the plane and the second hand represents the clubshaft. You can adjust the second hand or shaft with the knob on the back of the clock so it swings back and through in golf like fashion.
-you place the bottom edge of the clock on a table angled at 90 degrees to the table top to start.
-As the shaft swings back and through one end of it always points at the Base Line/ Plane Line except when the shaft is parallel to the Plane Line.
-Ok now tilt the clock back onto an address like elbow plane angle. Start swinging the shaft back as if in Startup by turning the knob and increase the plane angle to a Turned Shoulder Plane or what ever you wish at Top. Then return it to the Elbow Plane or what ever as the shaft approaches release.
-the shaft or second hand always points at the plane line, the change in Plane Angle (or Shift if you will) had no effect on the plane line. The clock face is the Plane. The shaft travels "The Plane", their relationship is fixed despite the Plane Angle changes.
-to be "off plane" is to have one end of the shaft not pointing at or tracing the plane line, base line. Say you move the bottom edge of the clock on the table top. A separate deal to Plane Angle changes.