First, another Golfing Machine 'Hats off!' to Martee for his finephotos. Working only with Yoda's fax doodlings and telephone descriptions, heis making it possible for us to all be on the same page. Thank you, Martee!
Now down to business:
The Clubface can make only three motions through Impact -- Hood, Closeand Layback (2-G). Hooding the Clubface means to reduce itsnormal loft angle, and since that effect can be achieved merely byselecting a lower Club number -- a six iron, for example, instead of a seven --it normally has limited usefulness. Except, of course for 'bragging rights' inthe Men's Grill about that (Hooded) eight iron you muscled 170 yards into the18th, instead of smoothing a six (with its true loft). Or, for true usefulness,to produce an above center Impact with the Putter and thus produce an Overspin(2-C-4 #2) as opposed to a No Spin (2-C-4 #1) or a Backspin(2-C-4 #3).
That leaves us with the two basic Clubface motions of Close Only andLayback Only. We have already discussed the Close Only motionthat is produced by the Horizontal Hinge with its hinge pin and bladepositioned vertical to the horizontal plane. Now we will discuss the LaybackOnly Motion of the Vertical Hinge.
The Vertical Hinge
Clubface Layback is produced when you position the hinge pin vertical toany plane other than the Horizontal. However, there is only one Planeof Motion in which there is only Layback, i.e., zero Closing. Andthat Plane of Motion is the Vertical Plane. To produce that purelyVertical Motion, you need only to install the pin vertical to the VerticalPlane. Then, the Hinge Blade and its Motion will remain Vertical tothe Vertical Plane.
Just as there is only one Horizontal Hinge -- hey, we're gettingpretty comfortable with the terminology here, aren't we! -- there is only oneVertical Hinge. As illustrated below, this Hinge produces an unmistakable 'LaybackOnly' Motion of the Clubface. Just as the Horizontal Hinge had zeroLayback, the Vertical Hinge has zero Closing. Position thepin of your hinge apparatus vertical to a Vertical Plane and watch the Clubfaceonly Lay Back as you rotate your model Club through 'Impact.'
Vertical Hinge Assembly Hinge Pin Vertical to a Vertical Plane
Vertical Hinge Top
Vertical Hinge Impact Motion: Square to Square
Vertical Hinge Follow-Through
The Angled Hinge
The Angled Hinge has its pin positioned vertical to any Planelying between the two absolutes of the Horizontal and the Vertical.Therefore, it can be considered a hybrid whose Motion reflects thecharacteristics of both the Horizontal and the Vertical HingeMotions, i.e., a composite Motion of simultaneous Close and Layback.Position the pin of your hinge apparatus vertical to an Angled Plane, and watchthe Clubface simultaneously 'Close and Lay Back' as you rotate your modelclub through 'Impact.'
Angled Hinge Assembly Hinge Pin Vertical to an Angled Plane
Angled Hinge Top
Angled Hinge Impact Motion: Simultaneous 'Close and Layback'
Angled Hinge Follow-Through
One Motion on Three Planes
Now that we've got a handle on the Three Types of Hinge Action and theMotion each produces, let us reflect a bit.
No matter which Plane defines the Motion, the Action of the Hinge -- theHinge Action -- remains identical. Recall from Lesson One:
1. The Hinge Pin is Vertical to the PlaneSurface. 2. The Blade moves in a circle around its Pin. 3. The Blade remains Vertical to its Plane of Motion.
So, the only thing that differentiates one Hinge Action from another is the Planeof Motion.
Read that sentence again.
Thank you.
And, we now know that we control that Plane of Motion by positioning theHinge Pin vertical to one of Three Basic Planes. In so doing, weautomatically produce a corresponding Clubface Motion:
1. Horizontal Hinge and Plane of Motion(Closing Clubface Only). 2. Vertical Hinge and Plane of Motion (Laying Back Clubface Only). 3. Angled Hinge and Plane of Motion (Simultaneous Closing and Laying BackClubface).
You now know the scientific and mechanical basis of precision Clubface ImpactAlignments. The concepts you have learned do not exist outside theprivileged world that is The Golfing Machine. And because you nowknow the precise mechanics, it will be possible to Translate them intodescribable sensations (1-J) -- Feels that are describable to and by theindividual player. And that player, my friend…is You!
Our next step is to learn how to use your Flat and Vertical Left Wrist toreplicate the Mechanical Motion of each of the Three Hinge Actions. The goal is to convert our carefully developed G.O.L.F. Engineering System intoyour eagerly awaiting G.O.L.F. Feel System. When that happens, you willhave gained total control of the Clubface for the rest of your life.
Hybrid Mode
