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Accumulator #3

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  #1  
Old 01-19-2006, 12:56 PM
phillygolf phillygolf is offline
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Originally Posted by Yoda
The larger the #3 Angle, the earlier its Roll must begin in Release. Since all degrees of Accumulator #3 Angle (except Zero) result in Clubhead travel through an arc of identical distance, the earlier Release requires a higher Handspeed to maintain an identical travel time.
Gotcha!

When I think of release, I think of the lengthening of the third side of the triangle. When I think of accumulator #3, I was seeing that as only one component(is that the correct terminology - ] of the release itself (if there is more then one accumulator)...

But I was generally in the vicinity I think - and thank you (and Annikan) for the clarification!

Thank you sir, may I have another? Just kidding!
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  #2  
Old 01-20-2006, 02:20 AM
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elliskit elliskit is offline
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Thoughts on handspeed and acc #3
For reference, I have been incubating from the following sections on acc #3: 4-D-0; 2-P; 2-G; 7-18; 6-M-1

Here is a thought that I cannot find stated explicitly in the book, but I think it is valid and relevant to this discussion:
Increasing Accumulator #3 enables greater handspeed because it allows a smaller radius (less effective mass) for the clubhead at the top (or end). Accumulator #2 (left wrist cock) has a maximum limit (about 60-65 deg for me from level to fully cocked). If I add 40 deg of acc #3, that means that the angle between the left forearm and clubshaft at the top is 100-105 deg., which means at start down, the clubhead is closer to the center of rotation than the hands, or greatly reduced effective mass, which translates proportionately into increased acceleration from the same amount of torque. Increasing acc #3 should have a greater affect with longer clubs. It seems to me that acc #3 would probably have a greater affect for swingers than hitters, because swingers go to end and have a quick start down, giving the hands more time to accelerate with the lower effective mass.

Also, 6-B-3-0 states that "Accumulator #3 Hand Motion (4-D-0) is "Clubface Control," "Rhythm Control" and "Roll Power Control" of the Right Elbow". This seems to infer that increasing acc #3 increases control of the roll of the left wrist. The swingle (2-K) seeks its inline condition, so CF helps to pull acc #3 inline at low point, if rhythm is correct and CF is not manipulated.
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  #3  
Old 01-21-2006, 12:49 PM
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Mike O Mike O is offline
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accumulator #3
Elliskit,
I think the following from your post above is an excellent point!

Quote: "Here is a thought that I cannot find stated explicitly in the book, but I think it is valid and relevant to this discussion: Increasing Accumulator #3 enables greater handspeed because it allows a smaller radius (less effective mass) for the clubhead"...UnQuote

Of course, "smaller radius" could have a lot of different perspectives- so if not obvious to someone- we're talking about Conversation of Angular Momentum- and having the center of gravity of the lever assemblies closer to the center of rotation- i.e. the pivot, just like the speed skater- therefore allowing a higher hand speed or put another way a faster rotation.

Although, I'm not relating it to any of the previous posts- as you stated- it's a different perspective than Homer was referring to- but your point is a separate and valid perspective, and does have it's own relevance to the topic.

Original thinking should be rewarded- nice work!

Last edited by Mike O : 01-21-2006 at 12:52 PM.
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Old 01-21-2006, 01:49 PM
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tongzilla tongzilla is offline
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Elliskit, I too think you've made a good point.

But, I think the reason Homer didn't state this explicitly was because he considered the lengthening/shortening of the Lever Assembly more a function of Wristcock (Accumulator #2) which has a Perpendicular Motion. And the effect this has on handspeed as you have stated is explained in detail in 2-P.

Good point nonetheless
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  #5  
Old 01-23-2006, 06:10 PM
EdZ EdZ is offline
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Originally Posted by Mike O
Elliskit,
I think the following from your post above is an excellent point!

Quote: "Here is a thought that I cannot find stated explicitly in the book, but I think it is valid and relevant to this discussion: Increasing Accumulator #3 enables greater handspeed because it allows a smaller radius (less effective mass) for the clubhead"...UnQuote

Of course, "smaller radius" could have a lot of different perspectives- so if not obvious to someone- we're talking about Conversation of Angular Momentum- and having the center of gravity of the lever assemblies closer to the center of rotation- i.e. the pivot, just like the speed skater- therefore allowing a higher hand speed or put another way a faster rotation.

Although, I'm not relating it to any of the previous posts- as you stated- it's a different perspective than Homer was referring to- but your point is a separate and valid perspective, and does have it's own relevance to the topic.

Original thinking should be rewarded- nice work!
Yes, it should
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  #6  
Old 01-24-2006, 05:14 PM
bobbyj bobbyj is offline
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I think I am beginning to understand the effect of the #3 accumulator angle thanks to Elliskit's post.

There is rotation of the primary lever assembly about the left shoulder and, when a #3 accumulator angle is employed, rotation of the secondary lever assembly about PP#3.

If the #3 angle is zero there is no clubhead rotation about PP#3 - only clubface rotation.

If the angle is large at release, the effective mass of the clubhead is increased and angular velocity is decreased. This extra effective mass will tend to slow down the hands and a greater lag pressure will be felt on PP#3.

If the angle is small at release, the angular velocity is increased and the effective clubhead mass and swing radius is decreased. This will lessen the tendency of the hands to decelerate.

Does this makes sense?

Cheers,

Bobby J
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  #7  
Old 01-24-2006, 08:18 PM
EdZ EdZ is offline
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Originally Posted by bobbyj
I think I am beginning to understand the effect of the #3 accumulator angle thanks to Elliskit's post.

There is rotation of the primary lever assembly about the left shoulder and, when a #3 accumulator angle is employed, rotation of the secondary lever assembly about PP#3.

If the #3 angle is zero there is no clubhead rotation about PP#3 - only clubface rotation.

If the angle is large at release, the effective mass of the clubhead is increased and angular velocity is decreased. This extra effective mass will tend to slow down the hands and a greater lag pressure will be felt on PP#3.

If the angle is small at release, the angular velocity is increased and the effective clubhead mass and swing radius is decreased. This will lessen the tendency of the hands to decelerate.

Does this makes sense?

Cheers,

Bobby J

Think of it as PP#3 being 'in orbit' around PP#1 on 'the' plane
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