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 Ralph Kramden 10-10-2017 08:26 PM

It's Pool Related... IMO

Caution:- What you read on the pool dogma page is IMO

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 Ralph Kramden 10-12-2017 01:56 PM

Quote:
 Originally Posted by Ralph Kramden (Post 5990830) Something about pool that you could read on a rainy day. - http://sites.google.com/site/poolandbilliard/pool-dogma - Caution:- What you read on the pool dogma page is IMO .
IMO you should readily recognize a 30 degree angle... Question #19 on the above link.

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 pt109 10-12-2017 02:35 PM

1 Attachment(s)
Quote:
 Originally Posted by Ralph Kramden (Post 5992381) IMO you should readily recognize a 30 degree angle... Question #19 on the above link. .
I'm gonna continue to call it a half-ball...for me, it's a visual thing.
...when I play under pressure, don't need no math going through my head.

Attachment 472690

Half ball is also the most important angle to learn for cue-ball control....
...I started on a 6x12...the black spot is 12.75 inches fro the end rail....
...'cause if the cue ball is at the side pocket, it's a half ball in-off...
...it's the red spot from English billiards.
....when you start to see that half ball angle all over, you can avoid scratches and kisses,
or get break outs.

 Ralph Kramden 10-13-2017 03:23 PM

Quote:
 Originally Posted by pt109 (Post 5992430) I'm gonna continue to call it a half-ball...for me, it's a visual thing. ...when I play under pressure, don't need no math going through my head.
Quote:
 Originally Posted by Ralph Kramden (Post 5992381) IMO you should readily recognize a 30 degree angle... Question #19 on the link. ..... http://sites.google.com/site/poolandbilliard/pool-dogma ..... .
Many players use visual overlaps & have for years.
IMO the ball overlaps can be more precisely found.

No math involved.. Just knowing your aim point for
Center CB.. You'll only need to know the pocketing
angle that the OB will go if the CB hits at that point.

If center CB is aimed at center OB ( line 1) it goes straight.
If center CB is aimed at the OB edge (line 5) ....it goes 30*
If center CB aims 1/2 way between 1&5 (line 3) it goes 15*
Whatever OB line is aimed at, it can be seen & will repeat.

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 Ralph Kramden 10-16-2017 06:23 AM

Quote:
 Originally Posted by Ralph Kramden (Post 5992381) IMO you should readily recognize a 30 degree angle... Question #19 on the link. .... http://sites.google.com/site/poolandbilliard/pool-dogma ....
The 5 verticle lines for ball overlaps using center CB

Ball overlaps... Line 1 (Full ball).. Line 2 (7/8 ball).. Line 3 (3/4 ball).. Line 4 (5/8 ball).. Line 5 (1/2 ball)

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 AtLarge 10-16-2017 11:24 AM

Quote:
 Originally Posted by Ralph Kramden (Post 5993378) Many players use visual overlaps & have for years. IMO the ball overlaps can be more precisely found. No math involved.. Just knowing your aim point for Center CB.. You'll only need to know the pocketing angle that the OB will go if the CB hits at that point. If center CB is aimed at center OB ( line 1) it goes straight. If center CB is aimed at the OB edge (line 5) ....it goes 30* If center CB aims 1/2 way between 1&5 (line 3) it goes 15* Whatever OB line is aimed at, it can be seen & will repeat. .
Quote:
 Originally Posted by Ralph Kramden (Post 5995111) The 5 verticle lines for ball overlaps using center CB Ball overlaps... Line 1 (Full ball).. Line 2 (7/8 ball).. Line 3 (3/4 ball).. Line 4 (5/8 ball).. Line 5 (1/2 ball) .
The cut angles do not increase linearly as the overlap decreases, but your approximation of 7.5° per eighth of overlap works fine out to the half-ball aim.

Here are the cut angles to a little more precision for each eighth of overlap or fullness. It's important to note that these cut angles ignore throw.

Overlap (Fullness) -- Cut Angle
• 1 (straight on) -- 0°
7/8 -- 7.2°
3/4 -- 14.5°
5/8 -- 22.0°
1/2 -- 30°
3/8 -- 38.7°
1/4 -- 48.6°
1/8 -- 61°
0 -- 90°

 PoppaSaun 10-16-2017 12:18 PM

Using 'IMO' as often as you do shows insecurity.

When someone prefaces or ends a thought with IMO, I dismiss 90% of he says. He only writes that because he can't back up his statement and is deathly afraid of someone arguing with him.

 pt109 10-16-2017 12:26 PM

Quote:
 Originally Posted by PoppaSaun (Post 5995378) Using 'IMO' as often as you do shows insecurity. We already know it is your opinion. You wrote it, so it is obviously your opinion. When someone prefaces or ends a thought with IMO, I dismiss 90% of he says. He only writes that because he can't back up his statement and is deathly afraid of someone arguing with himIMO.
It's also a form of courtesy, implying that other opinions are welcome.

 easy-e 10-16-2017 12:33 PM

Quote:
 Originally Posted by PoppaSaun (Post 5995378) Using 'IMO' as often as you do shows insecurity. We already know it is your opinion. You wrote it, so it is obviously your opinion. When someone prefaces or ends a thought with IMO, I dismiss 90% of he says. He only writes that because he can't back up his statement and is deathly afraid of someone arguing with him.
It's also a form of insecurity when a person greatly exaggerates something in order to prove their point.

Half ball is also the most important angle to learn for cue-ball control....
...I started on a 6x12...the black spot is 12.75 inches fro the end rail....
...'cause if the cue ball is at the side pocket, it's a half ball in-off...
...it's the red spot from English billiards.
....when you start to see that half ball angle all over, you can avoid scratches and kisses,
or get break outs.[/QUOTE]

I have seen this referenced before, I wonder why you want to scratch off the black?

 pt109 10-16-2017 06:45 PM

Quote:
 Originally Posted by alphadog (Post 5995607) Half ball is also the most important angle to learn for cue-ball control.... ...I started on a 6x12...the black spot is 12.75 inches fro the end rail.... ...'cause if the cue ball is at the side pocket, it's a half ball in-off... ...it's the red spot from English billiards. ....when you start to see that half ball angle all over, you can avoid scratches and kisses, or get break outs.
I have seen this referenced before, I wonder why you want to scratch off the black?[/QUOTE]

The black spot on a 6x12 was the red-ball spot at English billiards...that game predates
snooker.......a red and two cue balls at that ......there were three ways of scoring....
...make a carom, make the red, or go in-off either ball..( called a losing hazard)....
....so that half ball angle was important for the cue ball also.

 Ralph Kramden 10-17-2017 07:50 AM

Quote:
 Originally Posted by AtLarge (Post 5995335) The cut angles do not increase linearly as the overlap decreases, but your approximation of 7.5° per eighth of overlap works fine out to the half-ball aim. Here are the cut angles to a little more precision for each eighth of overlap or fullness. It's important to note that these cut angles ignore throw. Overlap (Fullness) -- Cut Angle 1 (straight on) -- 0° 7/8 -- 7.2° 3/4 -- 14.5° 5/8 -- 22.0° 1/2 -- 30° 3/8 -- 38.7° 1/4 -- 48.6° 1/8 -- 61° 0 -- 90°
AtLarge...
What I meant by linear was the horizontal line bisected by the 5 vertical aim lines.
I didn't mean the cut angles increase linearly. If vertical lines follow the contour of
the ball they wouldn't be equally spaced.. (like longitudinal lines on a world globe)
and would be increasing narrower from center to edge. Think of a flat disk instead
of a sphere, with evenly spaced lines, or 5 vertical aim points on a pencil glued to
the front of the OB. CCB aim at the 5 points would be OB overlaps center to edge.

I know 1/4 ball isn't exactly 15*.. If someone put both arms up, one at 15* and the
other at 14.5*, I doubt if I could tell... 0, 15 & 30 are just easy to remember. IMO :)

Thanks for 1/8 ball overlap angles increasing wider than 8 degrees after 30*.. Carl

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 AtLarge 10-17-2017 02:21 PM

Quote:
 Originally Posted by Ralph Kramden (Post 5995930) AtLarge... What I meant by linear was the horizontal line bisected by the 5 vertical aim lines. I didn't mean the cut angles increase linearly. If vertical lines follow the contour of the ball they wouldn't be equally spaced.. (like longitudinal lines on a world globe) and would be increasing narrower from center to edge. Think of a flat disk instead of a sphere, with evenly spaced lines, or 5 vertical aim points on a pencil glued to the front of the OB. CCB aim at the 5 points would be OB overlaps center to edge. I know 1/4 ball isn't exactly 15*.. If someone put both arms up, one at 15* and the other at 14.5*, I doubt if I could tell... 0, 15 & 30 are just easy to remember. IMO :) Thanks for 1/8 ball overlap angles increasing wider than 8 degrees after 30*.. Carl .
Yes, I understood what you meant. My comment about non-linearity was referring to your use of the equally spaced angles of 7.5, 15, 22.5, and 30, not to the spacing of the vertical aim lines. I know you just use the multiples of 7.5 as "close enough" out to the half-ball aim; I agree. For anyone interested, I just listed the cut angles with a little more precision.

 Ralph Kramden 10-20-2017 06:56 AM

Quote:
 Originally Posted by Ralph Kramden (Post 5990830) Something about pool that you could read on a rainy day. - http://sites.google.com/site/poolandbilliard/pool-dogma - Caution:- What you read on the pool dogma page is IMO .
Quote:
 Originally Posted by PoppaSaun (Post 5995378) Using 'IMO' as often as you do shows insecurity. We already know it is your opinion. You wrote it, so it is obviously your opinion. When someone prefaces or ends a thought with IMO, I dismiss 90% of what he says. He only writes that because he can't back up his statement and is deathly afraid of someone arguing with him.
I hope you don't work at the US Patent office. Patents or copyrights mostly belong to IMO folks.
If you dismissed 90% of what I'd written, I hope you find something of interest in the other 10%. IMO

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 Ralph Kramden 10-26-2017 02:51 PM

Quote:
 Originally Posted by Ralph Kramden (Post 5990830) Something about pool that you could read on a rainy day. - http://sites.google.com/site/poolandbilliard/pool-dogma -