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-   -   Geometry of the circle and how it applies to shot shaping . (http://www.lynnblakegolf.com/forum/showthread.php?t=8803)

Daryl 12-21-2012 05:04 PM

Quote:

Originally Posted by O.B.Left (Post 94785)
Great post .

Yes the circle model like all models is not perfect . Although the Victoria's Secret brochure just showed up in the mail.... now those models are perfect. So theres an exception to every rule, which in itself is a rule which might have an exception.

But how do you know Im Control, Zigfreid?

Siegfried: How do I know you're not Control?
Maxwell Smart: If I were Control, you'd already be dead.
Siegfried: If you were Control, you'd already be dead.
Maxwell Smart: Neither of us is dead, so I am obviously not from Control.
Shtarker: That actually makes sense.

Merry Christmas O.B. Left

O.B.Left 12-21-2012 06:06 PM

Quote:

Originally Posted by Daryl (Post 94787)
Siegfried: How do I know you're not Control?
Maxwell Smart: If I were Control, you'd already be dead.
Siegfried: If you were Control, you'd already be dead.
Maxwell Smart: Neither of us is dead, so I am obviously not from Control.
Shtarker: That actually makes sense.

Merry Christmas O.B. Left

Hah. Thanks for that Chief.

All the best of the season to you and yours double D.

O.B.Left 12-21-2012 06:36 PM

2 Attachment(s)
Lets hit a shot with this guy in a circle model below. But foyst another book quote:

Quote:


7-2 GRIP TYPES
............

.........For the “True” Hitter, Moving the Ball back (Hook alignment) or forward (Slice alignment) – always with the Clubface aligned to the Target Line per 2-J-1 – gives straightaway initial direction (2-B). Opening the Clubface (Slice Grip) or Closing the Clubface (Hook Grip) at your normal Impact Fix, produces Pushed Slices and Pulled Hooks and so require a compensating Target Line adjustment to make it square to the changed Clubface alignment.

OK although Homer says Hitters here he is ( per the last sentence of the first paragraph in 7-2 which I didnt include here ) also talking about Manipulated Hands Swingers using this geometry. So the only folks this business would not hold for are the True Swingers , those for whom CF alone squares the face. Which means this geometry applies to just about all of us. We can discuss this more in depth if anyone cares to.

Here's a great drawing followed by one that sucks. But it attempts to illustrate why when a player puts the ball back in his stance (say to hit it low ) and squares the face to the Impact Plane Line (or if you prefer "and keeps the face to his target line " in common speak) he should expect a draw shot tendency. Due to a divergence between face angle and clubhead path . Speaking of which I misspelled tendency in that drawing. BTW this is also how I personally hit a draw shot ... ball back a tad, plane line pointed right of the green or target . HOW BOUT YOU GUYS ? THERE ARE OTHER WAYS .



Attachment 2939

Attachment 2938

This squaring of the clubface is Grip Rotation. One face angle of it anyways. Notice how this procedure tends to deloft the club face somewhat. And speaking of which should we mark up 6-H-0 to read" Hitters and manipulated Hands Swingers" ? How about adding "True " before Swingers? "Associate the following with True Swinging". I think so but thats just me. What do you guys think?


Loft angle/ plane angle , clubhead speed etc etc will affect the amount of curvature to be expected of course ..... this model is still very simplistic. Straight away initial flight is questionable but close enough for practical purposes perhaps. We need to talk about all this stuff and more.

The model only shows a circular orbit , a fixed face angle and Angled Hinging. But hey that thing can hit a draw. Or a fade . Nobody should attempt a straight shot not even a model!

This guy can rotate his plane line too.

HungryBear 12-22-2012 12:50 PM

Quote:

Originally Posted by O.B.Left (Post 94777)
Anyone want to figure out how many 1-Ls we've knocked off?

One comment on Fig. 1-L. It doesn't have accumulators #2 or #3. By adding a pin for the cocking of the left wrist at an approtriate point on the arm/shaft (aboul half way would be a good estimate of location) 1-L would be 1-L with accumulators #2 and #3. Thats it- one pin transforms the figure. The hinge could then be changed to the desired hinge, dual horizontal is shown in the figure of 1-l , replace the hinge with a vertical hinge and it will be dual vertical or install a angle hinge and and remove the "dual" action pin.

HB

O.B.Left 12-23-2012 01:57 AM

Merry Christmas to all who sail upon the good ship LBG.

Lynn and all thank you for another great year!

O.B.Left 12-23-2012 01:52 PM

Ok take that last drawing ball back in the stance along the Arc or Approach but instead instead of employing Grip Rotation you set the face square to the Arc of Approach at Fix. IMO you'd get a straight shot logically wouldn't you? There being no divergence between face and path . A straight shot that is pushed to the right of the Plane Line. You could Rotate the Plane Line to point this push shot at the hole however.

The face angle would be more lofted though wouldnt it? So Im thinking slightly higher, push shot ? Does this make sense geometrically?

Your Plane LIne is open , pointed to the left , but there's no divergence between face and path, face is lofted a tad, straight shot resulting for a ball placed back of low point.

Still talking about the geometric model here.

O.B.Left 12-23-2012 02:25 PM

Playing a slice by moving the ball forward of Low Point presents a problem in that the club will hit the ground prior to hitting the ball ....... unless the ball sits higher than ground level . LIke on a tee . This is a fairly common thing actually . Especially for guys wanting a high , low spinning tee ball . You set the ball forward in the stance , ahead of low point, you square the face to the plane line /target line (some drivers are made to sit like this these days) and swing away. But encounter a fade tendency due to the divergence in face and path . The clubhead post low point is moving UP , IN and Forward after all.

My Titleist D3 which i love seems designed to set up like this. For balls played at low point the face opens and it does seem to have a slight push/ fade tendency. I just go with it for the most part. But can add more out to the path when I need it.

To hit a slice with an iron played off the ground you create the divergence between face and path required by pointing the Impact plane line sufficiently left . Plane Line Rotation.

HungryBear 12-23-2012 04:31 PM

Quote:

Originally Posted by O.B.Left (Post 94802)
Ok take that last drawing and instead of employing Grip Rotation you set the face square to the Arc of Approach at Fix. IMO you'd get a straight shot logically wouldn't you? There being no divergence between face and path . A straight shot that is pushed to the right of the Plane Line. You could Rotate the Plane Line to point this push shot at the hole however.

The face angle would be more lofted though wouldnt it? So Im thinking slightly higher, push shot ? Does this make sense geometrically?

Your Plane LIne is open , pointed to the left , but there's no divergence between face and path, face is lofted a tad, straight shot resulting for a ball placed back of low point.

Still talking about the geometric model here.

If you angle hinge and move the ball back on the arc I see a lowe push.
hb

O.B.Left 12-23-2012 05:16 PM

1 Attachment(s)
Quote:

Originally Posted by HungryBear (Post 94805)
If you angle hinge and move the ball back on the arc I see a lowe push.
hb

K let me do a quick drawing for clarity.


Attachment 2940


I guess this particular geometry (which doesnt show Hook Face) would not see the clubs loft increased vis a vis the same club positioned at low point. Its opened but not lofted. The previous drawing which shows Grip Rotation would see some hooding/delofting though IMO.

Do you still see it as a low push Hungry Bear?

Maybe its time to skip over to the more human side of things....and look at Hook Face , Straight Away position etc.

HungryBear 12-23-2012 05:34 PM

Quote:

Originally Posted by O.B.Left (Post 94806)
K let me do a quick drawing for clarity.


Attachment 2940


I guess this particular geometry (which doesnt show Hook Face) would not see the clubs loft increased vis a vis the same club positioned at low point. Its opened but not lofted. The previous drawing which shows Grip Rotation would see some hooding/delofting though IMO.

Do you still see it as a low push Hungry Bear?

Maybe its time to skip over to the more human side of things....and look at Hook Face , Straight Away position etc.

angled hinge on the arc the face is coming down hill- This is a no compensation swing with the ball bvack on the arc. still see it low-right.

hb


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