Bowling ball axis planes

Ask Mo Pinel and the bowling industry's best your general questions, and get straight answers.

Moderators: Mo Pinel, ballspinner, MathIsTruth, purduepaul

Forum rules
Ask Mo Pinel and the bowling industry's best your questions, and get straight answers.
This forum is moderated exclusively by Mo & Friends.
Locked
Jthom757
Member
Member
Posts: 18
Joined: December 24th, 2016, 5:42 pm
Positive Axis Point: 4.75 over
Speed: 16.2mph camera
Rev Rate: 300
Axis Tilt: 30
Axis Rotation: 60
Preferred Company: Storm

Bowling ball axis planes

Post by Jthom757 » December 26th, 2018, 3:42 am

Silly question. Why is the pin on a bowling ball considered the x axis? I guess each industry has different rules for denoting planes.

You guys are awesome. Thank you.
Justin

User avatar
kajmk
Trusted Source
Trusted Source
Posts: 3451
Joined: October 25th, 2010, 11:41 pm
Location: Sun City Arizona

Re: Bowling ball axis planes

Post by kajmk » December 27th, 2018, 12:20 am

Starting the ball rolling just for fun.
Not a silly question at all.

Hope my reply is not silly ...
Guess-timate ...

Your question struck my curious bone.
I did not know the answer, so I tried to find it.
Did not find any bowling ball specific definitions "yet".

The x-axis is deemed "the independent variable", thus it does not depend on any other variable in an equation.
The pin is the top of the weight block, theoretically right through the center. Being part of the ball it's not going anywhere and not dependent on anything else.

I believe a ball with a weight block has 2 happy places that it can rotate around.
The analogy would be an "American style" football either rotating end over end like it was kicked and a spiral.
It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so

There should be a rule of war saying you have to see someone up close and get to know 'em before it's ok to shoot 'em

Empathize

John

Jthom757
Member
Member
Posts: 18
Joined: December 24th, 2016, 5:42 pm
Positive Axis Point: 4.75 over
Speed: 16.2mph camera
Rev Rate: 300
Axis Tilt: 30
Axis Rotation: 60
Preferred Company: Storm

Re: Bowling ball axis planes

Post by Jthom757 » December 30th, 2018, 2:41 am

I like the football analogy. Thank you for reply.
Justin

User avatar
kajmk
Trusted Source
Trusted Source
Posts: 3451
Joined: October 25th, 2010, 11:41 pm
Location: Sun City Arizona

Re: Bowling ball axis planes

Post by kajmk » December 30th, 2018, 3:36 pm

Jthom757 wrote:I like the football analogy. Thank you for reply.
I've seen the football analogy in several places over the years. :)
Thanks.
It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so

There should be a rule of war saying you have to see someone up close and get to know 'em before it's ok to shoot 'em

Empathize

John

Locked