Author Topic: Annihilation mass bias (Read 1402 times)

R-Zitro · « **on:** August 27, 2004, 02:53:36 AM »

My Annihilation should be arriving monday and the drilling I am going w/is not on their site. I will just be putting a 4x4 drilling so I can play a med swing shot in oil (25 -10)and I have a high track. Can someone tell me where to put the MB on this layout, thank you you for all and any help.

Jeffrevs · « **Reply #1 on:** August 27, 2004, 11:27:48 AM »

R,
Send a message to "King of the mill" ...he'll help you out no problem!
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JEFF
There is doing in not doing

Strider · « **Reply #2 on:** August 27, 2004, 02:05:48 PM »

If you're going to put a 4x4 on it, you can't "place" the MB; it will land where it has to.

In drilling a (strong) MB ball, you go by pin and MB only. The CG is only a concern for static weights and balance hole location. A good driller (like KOTM as Jeffrevs suggested) can help a lot.

Also look over MoRich's site or call them and request their axistrack CD (I think that's what it's called). Standard drillings won't necessarily work well on MoRich's cores.
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Ron Clifton's Bowling Tip Archive

JohnP · « **Reply #3 on:** August 28, 2004, 06:26:49 PM »

quote:
If you're going to put a 4x4 on it, you can't "place" the MB; it will land where it has to.

Strider -- The 4 x 4 determines where the PAP will be in relation to the pin and cg (or mass bias), but then the grip center can be anywhere on a circle around the PAP with a radius determined by the PAP measurements (for example, 5 1/4" horizontal and 1/2" up). So a third parameter is required to finalize the layout. Usually that is the pin location in relation to the fingers - above, below, beside, etc., but it could also be the mass bias location. -- JohnP

Strider · « **Reply #4 on:** August 28, 2004, 08:26:05 PM »

I know what you mean, but I doubt the original poster does. 90% of people think of a 4x4 as pin near/under the ring finger and the cg roughly stacked below. The mb would end up near the right edge of the thumb most of the time. We don't even know if the pin-cg-mb all line up or not. That's why I suggested talking to an experienced ball driller or the people at MoRich.

Normally you put the pin where you want for flare (x" from your PAP, and high or low based on the length you want) and the MB based on the hook shape you're looking for. The CG is important only for static weights and to determine if or where a weight hole might be needed.
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Penn State Proud

Ron Clifton's Bowling Tip Archive

JohnP · « **Reply #5 on:** August 28, 2004, 10:16:13 PM »

Strider -- Exactly. And I should have said that the flexibility in locating the mass bias as I was discussing is really quite limited. -- JohnP

charlest · « **Reply #6 on:** August 28, 2004, 10:32:56 PM »

quote:

Strider -- The 4 x 4 determines where the PAP will be in relation to the pin and cg (or mass bias), but then the grip center can be anywhere on a circle around the PAP with a radius determined by the PAP measurements (for example, 5 1/4" horizontal and 1/2" up). So a third parameter is required to finalize the layout. Usually that is the pin location in relation to the fingers - above, below, beside, etc., but it could also be the mass bias location. -- JohnP

A reference point that has been used a lot lately for the pin's position, in addition to the distance from the bowler's axis point, is the height of the pin from the midline. (Midline is a line perpendicular to the line between the finger holes, going through the center of the grip to the middle of the thumb hole.)
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"We get old too fast, and too late, smart."

Author Topic: Annihilation mass bias (Read 1402 times)

R-Zitro

Annihilation mass bias

Jeffrevs

Re: Annihilation mass bias

Strider

Re: Annihilation mass bias

JohnP

Re: Annihilation mass bias

Strider

Re: Annihilation mass bias

JohnP

Re: Annihilation mass bias

charlest

Re: Annihilation mass bias