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Maximum Compression

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  #111  
Old 11-27-2011, 09:28 PM
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BerntR BerntR is offline
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Originally Posted by O.B.Left View Post
BerntR does the empirical data you allude to exist?
Not that I know of. It seems like most of the material out there is Trackman based. Very precise on some parameters and pure deduction on others.
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  #112  
Old 11-28-2011, 02:56 PM
MizunoJoe MizunoJoe is offline
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Originally Posted by O.B.Left View Post
BerntR does the empirical data you allude to exist? That'd be very interesting.

Horizontal Hinging , Hogans little baseball bat, A.J Bonars closing clubface do seem very real to me, well given decades of field trials. Horizontal Hinging given Homers Alignments being the most precise the others though brilliant are somewhat open to interpretation, respectfully.

By the way does anybody have a copy of the Nick Seitz interview with Ben Hogan , Gold Digest 1980's? Id love to read exactly how he described the rolling face, the little bat.
The clubface is not a little bat, which implies the face is rotating around the hosel.
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  #113  
Old 11-28-2011, 03:38 PM
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Yoda Yoda is offline
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Da Bat
Originally Posted by MizunoJoe View Post
The clubface is not a little bat, which implies the face is rotating around the hosel.
Interesting, Mizuno Joe. Hadn't thought of it like that!

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  #114  
Old 11-28-2011, 04:32 PM
MizunoJoe MizunoJoe is offline
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Originally Posted by Yoda View Post
Interesting, Mizuno Joe. Hadn't thought of it like that!

Hi Yoda!

I think we'd be astonished by how many people think the clubface acts like the flippers on a pin-ball machine, when in fact, the toe chases the heel of the club around the sweetspot.
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  #115  
Old 11-28-2011, 07:07 PM
O.B.Left O.B.Left is offline
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Originally Posted by MizunoJoe View Post
Hi Yoda!

I think we'd be astonished by how many people think the clubface acts like the flippers on a pin-ball machine, when in fact, the toe chases the heel of the club around the sweetspot.
That makes sense MJ .....thanks. Effective though Rolling is, its not a little bat or flipper, lever deal per say. Its more about optimal contact. Keeping the point of contact between ball and face intact "as if welded together", no slips or wobbles except for that due to club face loft.

Would you agree? If so what does that do to Hogan's "little bat" or A.J.s "da bat" ? It'd still work but not for the reasons described I guess. Interesting.

Last edited by O.B.Left : 11-28-2011 at 07:12 PM.
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  #116  
Old 11-28-2011, 07:57 PM
kbclements kbclements is offline
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the sweet spot on a bat
While we know that the club rolls along the sweet spot plane in golf, I am not aware of a Homer Kelley type inquirey for swinging a bat. It may be similar or it may not- but should we just dismiss it?
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  #117  
Old 11-29-2011, 12:42 AM
O.B.Left O.B.Left is offline
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Hey KB how are ya ?

The little bat Im talking about is the face rolling like when you flick your wrister top cheese eh. So the "little bat" so to speak is Rolling, Horizontal Hinging etc. 2-C-1 as opposed to letting the puck just slide or roll off the end of your blade .....

Hey did you see Joe Kapp roll one off Angela's face the other day? 48 years in the making and total compression.

Last edited by O.B.Left : 11-29-2011 at 12:46 AM.
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  #118  
Old 11-29-2011, 01:18 AM
kbclements kbclements is offline
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Hogan's study
Hi OB

Was watching the Cup and the golf - must have missed old Joe.

I thought you had been discussing Hogan's study of the great hitters of baseball. I was thinking about my glory days and how I used a hitting motion to line one over the short stop or 2nd baseman but used swinging to try to go deep. The ball would slice or hook at times and best of all, my buddies didn't fall to the ground laughing if I wiffed.

I figure if Mr. Hogan thought there was something to be learned from his study, that maybe it was something of value whether zone 1...2 or 3.

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  #119  
Old 11-29-2011, 09:37 AM
HungryBear HungryBear is offline
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Originally Posted by BerntR View Post
I can't see where Homer could possible have gone wrong with his dissection of impact and ball compression in TGM.

HK's discussion of impact was very theoeoretical. I think we need empirical data to sort out how much small variations in the impact alignments matters to the energy transfer.

In any case I think HK's explanations here tells a lot about the difference in quality of ball striking between great players and high handicappers.

It may appear that the difference between a draw (with as close to perfect impact as it gets) and a fade (where the club face rotates anti clock wise and the ball rotates clock wise) is negligible for a good ball striker. But I really have to flush a fade to get the typical draw distance, so I am not convinced that a fade goes as long as a draw as long as you negotiate the difference in adding loft when hitting a fade.
The physics of Objects rotating internal vs. external may explain.
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  #120  
Old 11-29-2011, 10:07 AM
whip whip is offline
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Originally Posted by Max Impact View Post
Looking for clarification on Sustaining the Line of Compression. Assuming that the sweet spot is moving on an inclined plane during the impact interval, and the cluface is square to that plane at separation, what factors will provide maximum compression or compression leakage? Assume contact on sweet spot at impact and same clubhead speed at separation.
I admit I'm not sure if this has been addressed but why would we assume the same club head speed at separation? because this is not possible... Regardless of your assumptions to try and eliminate the variables, The factors that will provide maximum compression are....



A. Hinge action, a closing only club face (dual horizontal) will provide maximum compression whereas as vertical and angled will produce lay back therefore diverting the force losing compression comparatively

B. In order to sustain the line of compression the original contact point of face and ball must remain in contact through the entire impact interval ( which relates to hinge action) this is possible only if the motion or arc is uniform, Therefore there must be a perfectly centered action.

C. Any deceleration of the club unrelated to the slowing effect of two objects colliding. Such as bending the left wrist ( law of the flail) or any other mechanical inefficiency regardless of whether the sweetspot was hit or not will change the compression and separation speed

In other words... Hit that ball on the sweet spot with maximum separation speed by executing a horizontal hinge with a flat left wrist and a centered action

Secondly........

Originally Posted by MizunoJoe View Post
The clubface is not a little bat, which implies the face is rotating around the hosel.
Please explain your reasoning. Do you mean to say that it implies that it rotates around the hosel because the handle of the baseball bat is at one end? Why does attaching a shaft to a little bat imply the face is rotating around the hosel? Does the little bat not also have a longitudinal center attached to a shaft? of course it does... If the little bat is attached to the shaft through the sweet spot then it would still be rotating around the sweetspot it's just that the hosel and sweetspot are in line

Last edited by whip : 11-29-2011 at 10:14 AM.
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