Originally Posted by strav
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Jerry, I too would appreciate the picture you requested but for some unknown reason there is a reluctance to depict something regarded as so critical. Plenty of words but still no pictures.
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Homer's WHOLE point in this was to SYSTEMATICALLY and GEOMETRICALLY control CLUBFACE MOTION...
The clubface can ONLY make 3 motions...period....respectively each motion has an associated PLANE OF MOTION
1. CLOSE ONLY-motion of the clubface in the Horizontal Plane only (no layback)
2. LAYBACK ONLY-motion of the clubace in the Vertical Plane Only (no closing)
3. CLOSE AND LAYBACK-Motion on an Angled Plane...(closing and layback SIMULTANEOUSLY)
Hinge Pin always vertical to the "associated" Plane...there are 3...Vertical, Angled (of which there are "infinite" varieties) and Horizonta...so of the 3 Basic Planes there is ONE Vertical, One Horizontal and many Angled....
So you can see how the motion would work if you positioned the pin at 90 degrees to the plane of motion you select....
True Vertical (trap door movement...or attic door)...so the plane is VERTICAL so the hinge pin by definition is position vertical (at 90 degrees) to the associated plane in this case the plane is VERTICAL the hinge pin is positioned at 90 degrees thus horizontal...
Horizontal ... the plane is horizontal...parallel to the ground ...thus the hinge pin is positioned at 90 degrees to the plane of motion thus vertical to the ground...
Angled Hinging....pin positioned at 90 degrees to the selected Angled Plane...
