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Author Topic: Gradient Line Balance Hole Placements  (Read 11112 times)

LiquidHero

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Gradient Line Balance Hole Placements
« on: April 15, 2008, 10:48:10 AM »
I am not sure if this has been discussed or not but here is a link to the Morich website that explains Gradient Line Balance Hole Placements. Just wondering if anyone has thoughts or comments on this.
http://morichbowling.com/MosCorner/GradientLineBalanceHole/GradientLineBalanceHole.htm
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fluff33

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Re: Gradient Line Balance Hole Placements
« Reply #1 on: April 15, 2008, 07:09:59 PM »
It is only a diffent way of placing the balance hole in the position to give you the reaction needed and makes available the numeric difference created by the balance hole.
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LiquidHero

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Re: Gradient Line Balance Hole Placements
« Reply #2 on: April 21, 2008, 08:57:14 PM »
With this new info available, will everyone be experimenting and using this method to drill balance holes? Any input from the gurus?  Thanks
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JohnP

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Re: Gradient Line Balance Hole Placements
« Reply #3 on: April 22, 2008, 11:36:27 AM »
If I'm reading the information correctly, a shop would have to get a Determinator so the preferred spin axis after drilling can be located.  That's a purchase that's too expensive for most small shops.  Maybe guessing its location would be good enough to aid in balance hole location.  --  JohnP
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T-GOD

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Re: Gradient Line Balance Hole Placements
« Reply #4 on: April 22, 2008, 04:29:25 PM »
The GRADIENT LINE BALANCE HOLEâ„¢ works accurately in conjunction with the DUAL ANGLE DRILLING TECHNIQUEâ„¢ for ALL bowling balls. Mo doesn't say anything about this method being based on asymmetrical core balls.
quote:
So what's the bottom line with all of these numbers? P1 placements reduce the dynamics of the ball by almost 20%. P2 placements are so minute in changing the dynamics that its almost the same as if the hole weren't drilled. And the need for a P2 if nothing changes -- to keep side weight within USBC regulations! P3 placements increase ball dynamics by 20% and P4 placements increase ball dynamics by 40%!

Hmmm so before we go much further, can you see how you might be able to adjust a bowler's preferred ball so that it can behave differently without much change required of the bowler?

As you can see, Mo doesn't say what ball reaction you're going to get with these holes, just that the DYNAMICS will be lower or higher as you move from P1 to P4. What does this mean..?

As you move from P1 to P4, the ending side weight increases as well as the finger weight. Based on the principle of statics alone, the ball should go longer with more backend, as you move from P1 to P4 with your balance hole, if the ball isn't going too long already.

P1 holes will make the ball roll earlier, which can make the ball hook more on an oily lane if the ball is going too long to begin with. P4 holes will make the ball go longer before hooking. It's not rocket science. =:^D
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strikealot

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Re: Gradient Line Balance Hole Placements
« Reply #5 on: April 22, 2008, 04:43:16 PM »
not to hijack..but tgod why doesnt lane 1 make all their balls with starting top of 3oz or more to cut down on disappointments on ball reation..by lane 1 blaming driller...by having bottom or neg side...this would cut your cost of balls being returned because customer isnt happy...by the way i do like lane1..
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khamûl

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Re: Gradient Line Balance Hole Placements
« Reply #6 on: April 22, 2008, 05:56:53 PM »
quote:
As you can see, Mo doesn't say what ball reaction you're going to get with these holes, just that the DYNAMICS will be lower or higher as you move from P1 to P4. What does this mean..?

As you move from P1 to P4, the ending side weight increases as well as the finger weight. Based on the principle of statics alone, the ball should go longer with more backend, as you move from P1 to P4 with your balance hole, if the ball isn't going too long already.

P1 holes will make the ball roll earlier, which can make the ball hook more on an oily lane if the ball is going too long to begin with. P4 holes will make the ball go longer before hooking. It's not rocket science. =:^D


lol...

but they generally also decrease precious top weight... what do we do then?!?!?!?

p1 holes tend to delay overall ball reaction by raising the rg of the ball at its initial axis point (as well as raising overall average rg), reducing differential and potential friction.

compared to position 1 holes, p3 and p4 holes will not increase the distance the ball will travel once the ball encounters friction in the pattern.  

when using p3 and p4 balance holes the drilled ball will have a higher rg differential, higher intermediate differential and a lower overall average rg.  all of these factors play a part in helping the ball to increase the amount of potential friction and react earlier.

/fixedcausemommasaystoplaynice-edit


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Edited on 4/23/2008 0:18 AM
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strikealot

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Re: Gradient Line Balance Hole Placements
« Reply #7 on: April 22, 2008, 06:05:00 PM »
tgod, have you been called out again...
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T-GOD

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Re: Gradient Line Balance Hole Placements
« Reply #8 on: April 22, 2008, 07:06:47 PM »
Strike, I'm sure if you contact Lane #1, they will have plenty of balls over 3 and even 4 oz. top. Depending on the layout and finger holes sizes, you don't alwyas want a high top weight to start. I never hide by the way...

khamûl,  
quote:
p3 and p4 holes most definitely do not increase the "length" of the balls transition,
I never said P3 and P4 holes increase the length of the balls transition (from oil to dry or when it hits the dry I'm assuming). It increases the length in oil. There's a difference, which obviously you've confused the two. =:^D






Edited on 4/22/2008 7:08 PM
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khamûl

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Re: Gradient Line Balance Hole Placements
« Reply #9 on: April 23, 2008, 12:42:04 AM »
quote:
 It increases the length in oil.


actually, a hole in a position that increases core dynamics (p3 or p4) will shorten the length of time the ball takes to turn translational energy into rotational.  the ball will slow down and rev up earlier due to the increase in overall rg differential and decrease in average rg.  it will also change direction sooner and stronger as the ball will lose rotation angle quicker (lower rg) in the pattern.

so no confusion, depending on the friction relationship between the coverstock and lane environment, this could happen in the oil pattern, in the buff, on the dry, carrydown... wherever.

/deleterantbeforeeditthistime


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purduepaul

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Re: Gradient Line Balance Hole Placements
« Reply #10 on: April 23, 2008, 07:53:35 AM »
<i>
As you move from P1 to P4, the ending side weight increases as well as the finger weight. Based on the principle of statics alone, the ball should go longer with more backend, as you move from P1 to P4 with your balance hole, if the ball isn't going too long already.

P1 holes will make the ball roll earlier, which can make the ball hook more on an oily lane if the ball is going too long to begin with. P4 holes will make the ball go longer before hooking. It's not rocket science. =:^D
</i>

Since people want to talk about data, I will provide data.  I would like people to guess which one has the P1 hole and which one has the P4 hole.

RG/Total Diff/I-Diff
2.507/0.070/0.031
2.518/0.050/0.017

Both balls were assymetrical to start and drilled the exact same way pre weight hole.  
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Strapper_Squared

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Re: Gradient Line Balance Hole Placements
« Reply #11 on: April 23, 2008, 08:14:52 AM »
quote:

As you move from P1 to P4, the ending side weight...


Irrelevant.  Lost me... move on.  

LOL.

Paul... just a guess
P4
P1

S^2



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purduepaul

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Re: Gradient Line Balance Hole Placements
« Reply #12 on: April 23, 2008, 09:32:39 AM »
Sorry that wasnt my writing I was quoting t-god....


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JohnP

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Re: Gradient Line Balance Hole Placements
« Reply #13 on: April 23, 2008, 10:53:52 AM »
ppaul and others -- Do you know if the PSA Mo uses is the marked mass bias or a PSA determined after the ball is drilled?  --  JohnP
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dR3w

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Re: Gradient Line Balance Hole Placements
« Reply #14 on: April 23, 2008, 12:54:15 PM »
quote:
ppaul and others -- Do you know if the PSA Mo uses is the marked mass bias or a PSA determined after the ball is drilled?  --  JohnP


In the picture, the P4 is right over the marked PSA on the ball, so I would assume that that is the answer.
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