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Author Topic: Layout-reaction questions  (Read 2288 times)

justinmill14

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Layout-reaction questions
« on: June 06, 2010, 02:50:28 PM »
I have looked everywhere on the Internet for something to help answer this question but really haven't found what I'm looking for. I am wanting to know about different drillings such as a 4x4 or 3x5 or something. I know what the numbers mean but not sure what the difference is going to be in reaction. So, I guess what I am wanting to know is what is going to be the reaction of a 4x4 drilling vs. A 5x5 or a 4x5 and so on..

 

charlest

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Re: Layout-reaction questions
« Reply #1 on: June 07, 2010, 05:24:59 AM »
YOu're looking for somehting that doesn't exist except in someone's head.

Even for a given PAP, those drillings do not take into account a bowler's tilt, rotation and ball speed.
Nor do they take into account distance from the VAL or above the midline.
Nor do they take into account the design of the ball, the actual combinaiton of the core + coverstock.
Nor do they take into account the surface of the ball, at any one point in time.

So for any given combination of the the above, a 4x4 will produce a different reaction, as will any of those you mention: 4x5, 2x5, 5x5, 2x2.
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agroves

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Re: Layout-reaction questions
« Reply #2 on: June 07, 2010, 05:43:01 AM »
What he is saying is, those numbers are the distance from one persons positive axis point (PAP) to the pin and their PAP to the marked CG/MB.

However, those terms have all but been eliminated as far as ball drilling goes.  The "new" terminology is drilling angle x pin to pap distance x VAL angle(something like 60 x 3 x 30).  Some companies, storm/roto, are using measurements from the val, like 1" or 3".  The smaller the measurement, the smaller the VAL angle.  

I think you'll find most people are using the Dual Angle method to describe their layouts.  You'll find more info about that here:  http://morichbowling.com/Drilling/DualAngleSeminar/DualAngleSeminar.htm


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leftykev

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Re: Layout-reaction questions
« Reply #3 on: June 07, 2010, 02:50:17 PM »
agroves: don''t know if it''s possible, but could you give an estimate how a rico drilled ball would translate to a dual angle drilling?

I read the morich document and just trying to wrap my brain around the idea of moving to a dual angle drilling for my future ball drillings.

An example of another ball drilling I have,

Reign of Fire
3-3/8" stacked leverage
My pap is 4-1/2 x 1/2" up.

Thanks!

Edited on 6/7/2010 2:51 PM

sps300

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Re: Layout-reaction questions
« Reply #4 on: June 07, 2010, 04:39:28 PM »
I believe a rico drill pattern will actually fall outside the parameters of the dual angle technique. Mostly because with the dual angle it is impossible to come up angles and a pin distance that far from your PAP to get the pin that low. Most people need a 60 or 70 degree angle to the val just to get the pin down at all using this system. Makes me wonder however what it would actually be and will be something I will be checking with-in the next hour to see how wacky the angles are.

agroves

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Re: Layout-reaction questions
« Reply #5 on: June 08, 2010, 08:31:17 AM »
quote:
agroves: don''t know if it''s possible, but could you give an estimate how a rico drilled ball would translate to a dual angle drilling?

I read the morich document and just trying to wrap my brain around the idea of moving to a dual angle drilling for my future ball drillings.

An example of another ball drilling I have,

Reign of Fire
3-3/8" stacked leverage
My pap is 4-1/2 x 1/2" up.

Thanks!

Edited on 6/7/2010 2:51 PM


"RICO" is a different animal.  I'd have to lay out a ball with your specs to get exact numbers.  But it would probably be some like 30 x 4.5 x 95 for you.  

Watch this video by menorevs:  http://www.youtube.com/watch?v=Oq8SG1rqdCw
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