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core shape.. mass on top vs mass on bottom

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J_w73
 Post subject: core shape.. mass on top vs mass on bottom
 Posted: Tue Feb 20, 2018 11:36 pm Post Number: #1 Post
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Trying to find some information about how a ball will roll and react differently if the mass of the core is closer to the pin vs on the opposite side. I had just run across something that talked about this, but I can not find the article. .

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Right Handed, 18 -19 mph off hand (16 - 17 mph on Qubica reading) ,350 rpm,PAP 4 3/4 x 1/4 up, 17 deg axis tilt, varied rotational axis deg.. usually 45+
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EricHartwell
 Post subject: Re: core shape.. mass on top vs mass on bottom
 Posted: Wed Feb 21, 2018 3:31 am Post Number: #2 Post
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J_w73 wrote:
Trying to find some information about how a ball will roll and react differently if the mass of the core is closer to the pin vs on the opposite side. I had just run across something that talked about this, but I can not find the article. .


Is this what you were looking for?

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Eric Hartwell

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PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand
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J_w73
 Post subject: Re: core shape.. mass on top vs mass on bottom
 Posted: Wed Feb 21, 2018 3:40 pm Post Number: #3 Post
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I had not seen this before, but this does have the information I was looking for. What I saw before was just a couple of lines, I think from Mo, in one of the Wiki docs.

This was pretty good though. Thank you.

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Right Handed, 18 -19 mph off hand (16 - 17 mph on Qubica reading) ,350 rpm,PAP 4 3/4 x 1/4 up, 17 deg axis tilt, varied rotational axis deg.. usually 45+
Book Average 220+
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