How much of a cueball is useable normally?

garczar said:
How do you guys ever make a ball with all this s&*t bouncin' around in your dome? Wow.
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Lol. I don't. None of this stuff is bouncing around in my head. I do a lot of thinking about the game though when I'm not actually at a table playing. During the day I come up with some pretty nifty things to try when I get home to my table. I'll share some sometime.
 
Patrick Johnson said:
Very interesting - is it useful for knowing how much of the CB is "usable", or is that a 2D question?

pj
chgo
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It's different for everyone, but there is a safe average for all players combined (which is apparently 50% of the diameter). You can answer that in a 2D perspective, why not. I'd answer it as (if we're using 50%) a circle with the area of 25mm.

28.575mm (ball radius using 2.25" ball)
~14.28 (new_radius = radius / 2)
~204 (new_radius * new_radius)
~3.14 (pi)
~640.5 (204 * 3.14)
~25mm (square root of 640.5)

I'm not really a math person, so I'm not sure how you'd factor in the deflection for each position, especially beyond that 50% mark which is where you would really like to know (but also not really, as you can normally just move :-/ ).

Edit: oops, had to halve that original radius.
 
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BC21 said:
...because we don't truly see in 3D
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Are you suuurrree :-)

1139111247624054.jpg



Note: the only way the human brain can rationalize that image is in a 3D construct, which renders it impossible.
 
Wonder What Would Happen?

Cron said:
Are you suuurrree :-)

1139111247624054.jpg



Note: the only way the human brain can rationalize that image is in a 3D construct, which renders it impossible.
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I wonder what would happen if you drew that and fed it into a CNC machine?:D

Hu
 
Cron said:
It's different for everyone
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What is?

...
28.575mm (ball radius using 2.25" ball)
~14.28 (new_radius = radius / 2)
~204 (new_radius * new_radius)
~3.14 (pi)
~640.5 (204 * 3.14) <- ~area of 1/2-radius circle
~25mm (square root of 640.5)
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How is the area of the 1/2-radius circle (or its square root) useful info?

pj
chgo
 
BC21 said:
Lol. I don't. None of this stuff is bouncing around in my head. I do a lot of thinking about the game though when I'm not actually at a table playing. During the day I come up with some pretty nifty things to try when I get home to my table. I'll share some sometime.
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I guess intense boredom is mother of all weirdness. ;)
 
garczar said:
I guess intense boredom is mother of all weirdness. ;)
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Lol.....yes. But actually I'm never bored. I'm just always trying to learn or come up with things I've never seen before. It's a weirdness I suppose, but one that brings plenty of benefits.
 
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Patrick Johnson said:
What is?
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??? The question was is it a 2D question, it might not be for you, or me, or whoever... it's different for everyone for whatever reason.

Patrick Johnson said:
How is the area of the 1/2-radius circle (or its square root) useful info?
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Whatever the math may be (is it wrong?... I'm not great at math), it's probably useful for somebody. But, this is a good question which made me wonder how marking something like a cue ball would be approached best. Would creating a thin, thin ring then lightly, lightly melting it into the ball work? Some other kind of impression? Paint doesn't seem like the greatest idea (at least not on its own). Has anyone tried this with great results?
 
Take a striped ball (sorry if this has already been mentioned), place the stripe vertical with the non stripe portion with the number facing you, you should comfortably be able to shoot with any of this area (inside the stripe) consistently without miscueing as long as you chalk up good and keep your tip shaped...anyway, that is how I learned and it seems to work for me.
 
Cron said:
... But, this is a good question which made me wonder how marking something like a cue ball would be approached best. Would creating a thin, thin ring then lightly, lightly melting it into the ball work? ...
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Were you aware that people already sell training cue balls with circles of the appropriate size marked on them?
 
Cron said:
...wonder how marking something like a cue ball would be approached best. Would creating a thin, thin ring then lightly, lightly melting it into the ball work? Some other kind of impression? Paint doesn't seem like the greatest idea (at least not on its own). Has anyone tried this with great results?
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Maybe once or twice.

pj
chgo

cbs.jpg
 
Bob Jewett said:
I actually looked in on NPR. I hope I never do that again. :(

I am thinking of visiting the aiming forum next. I may need an intervention.
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:eek: Trust me, don't do it. It's hard to escape that dungeon!
 
Patrick Johnson said:
Here's the Rempe training ball with the miscue limit (1/2 ball diameter) in blue. Don't ask me what the lines outside that are for...?

pj
chgo

View attachment 544775
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Maybe those outside lines accommodate bigger tips, like 14mm. Aiming the center of the tip at 5 looks about right for the tip contact to hit that outer/max circle. Maybe. I have this cb....looks good on a shelf.
 
BC21 said:
Maybe those outside lines accommodate bigger tips, like 14mm. Aiming the center of the tip at 5 looks about right for the tip contact to hit that outer/max circle. Maybe.
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That's what I'd guess, I guess... and I guess the red circle is just there to taunt us.

I have this cb....looks good on a shelf.
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lol

pj
chgo
 
Patrick Johnson said:
But you don't need no fancy training ball. Here's a Centennial ball showing how close its circle is to the miscue limit.
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Honestly, it's not for aid as it was your question that started my thinking about the options. I was thinking more about kids in particular. I know there is plenty of ball sets out there from Disney and others, but if you could put on a little something of anything a kid wants that would be cool. Nothing extremely complex, just general line art.

Laser etching is too expensive.
Varnish... maybe.
Acid stain... maybe.

If the ball is phenolic, it seems like there could be ways chemically, but I don't know. It could always be lightly etched in and stained too, but that is an art on its own.
 
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