cue ball throw
- Thread starter weiru
- Start date
you can definitely throw it with a ld shaft and transfer spin,when you aim at a contact point with side spin you dont have to allow as much for deflection,its suppose to shoot straighter with side spin than a normal shaft
Really sticky question... The terms deflection, squirt, and throw have been associated with a lot of misunderstanding, & with some pretty contradictory effects. What you're alluding to is by & large correct - but the extent of those effects will vary with distance between the balls, speed, etc. There is "directional OB throw", where the effect is caused by the cue ball (or another object ball) rubbing across the face of the OB - as is used in a lot of bank shots executed with a dead ball, or "throwing" a ball in a combination. There is "english OB throw", where the effect is caused by a spinning cue ball imparting spin onto the OB.
I recommend you reference a search on, or send a pm to, Dr Dave or Bob Jewett to ensure your understanding of the various terms are clear as they apply to the cue ball vs the object ball. These gentlemen not only know their stuff, but they know how to provide clear, concise guidance on the question, and can steer you to a wealth of learning opportunity in work they've published on free, public forums. They're worth their weight in gold to the pool community.
I recommend you reference a search on, or send a pm to, Dr Dave or Bob Jewett to ensure your understanding of the various terms are clear as they apply to the cue ball vs the object ball. These gentlemen not only know their stuff, but they know how to provide clear, concise guidance on the question, and can steer you to a wealth of learning opportunity in work they've published on free, public forums. They're worth their weight in gold to the pool community.
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RBC
Deceased
Weiru,
Yes, you are correct in that a spinning cue ball will "throw" the object ball a little. How much depends on how much spin the cue ball has on it and the friction between the cue ball and object ball.
The often misunderstood thing is that some shafts will "throw" more than others. In reality, its all about spin. If the cue ball has a certain amount of spin on it, then it will give a certain amount of throw (given consistent friction of course). If the ball throws more with one shaft than another it's because there is more cue ball spin. You can reduce this by hitting a little closer to center to reduce the spin. Of course if you need the spin, then you will have to deal with the throw. It's a fact of life!
Royce Bunnell
www.obcues.com
Yes, you are correct in that a spinning cue ball will "throw" the object ball a little. How much depends on how much spin the cue ball has on it and the friction between the cue ball and object ball.
The often misunderstood thing is that some shafts will "throw" more than others. In reality, its all about spin. If the cue ball has a certain amount of spin on it, then it will give a certain amount of throw (given consistent friction of course). If the ball throws more with one shaft than another it's because there is more cue ball spin. You can reduce this by hitting a little closer to center to reduce the spin. Of course if you need the spin, then you will have to deal with the throw. It's a fact of life!
Royce Bunnell
www.obcues.com
RBC wrote:
"Weiru,
Yes, you are correct in that a spinning cue ball will "throw" the object ball a little. How much depends on how much spin the cue ball has on it and the friction between the cue ball and object ball."
Speed of shot must also be factored in. Useful application of throw frequently occurs when an obstructing ball mandates a fuller or thinner hit than optimal. The cue ball, gently stroked with appropriate spin can save the day.
Effect diminishes as speed of shot increases.
pete
"Weiru,
Yes, you are correct in that a spinning cue ball will "throw" the object ball a little. How much depends on how much spin the cue ball has on it and the friction between the cue ball and object ball."
Speed of shot must also be factored in. Useful application of throw frequently occurs when an obstructing ball mandates a fuller or thinner hit than optimal. The cue ball, gently stroked with appropriate spin can save the day.
Effect diminishes as speed of shot increases.
pete
Yes, you're right.
Throw is caused by friction between the surfaces as the cueball rubs across the object ball. The object ball will be thrown by essentially the same amount whether you're using a lower squirt shaft or a higher squirt shaft. In principle, there'll be a slight difference since the cueball reaches the object ball at a slightly different angle. That is, it travels along a slightly different path, which, in turn, changes the shot geometry. But this is too small to be of any real practical significance.
Jim
In a nutshell:
Throw: caused by friction between balls. More friction, more throw. Dirty sticky balls will throw more than clean shiny balls. Doesn't matter what shaft you use. The amount of throw is determined by spin (more spin more throw), speed (*less* speed, more throw), and friction. There are two types of Throw, but they are really the same effect:
Hope this helps. I recommend shooting some straight in shots and experimenting with left and right english, and speed. Notice how hard it is to shoot balls hard with lots of spin and make the shots? See how much throw you can create at various speeds.
Hope this helps.
KMRUNOUT
Throw: caused by friction between balls. More friction, more throw. Dirty sticky balls will throw more than clean shiny balls. Doesn't matter what shaft you use. The amount of throw is determined by spin (more spin more throw), speed (*less* speed, more throw), and friction. There are two types of Throw, but they are really the same effect:
Contact-induced throw: this is when the cueball hits the object ball at an angle. The cueball "grabs" the object ball briefly and throws it off line. This happens the most at about 34 degrees of cut, which is a 1/2 ball hit. Less angle will create less throw. Obviously a straight in shot will not have any *contact induced* throw. This effect is minimized by hitting the shot harder. Also, as above, clean balls will make throw less. You can counteract this type of throw by using outside english (on the side the cueball will travel after it hits the object ball). At steeper cut angles, draw or follow (doesn't matter which) will also reduce this effect. My experience is that draw seems to reduce the effect slightly more, but I'm not sure about this.
Spin-induced throw: I think this is what you were initially talking about. This is what I described above. Caused by the cueball spinning when it hits the object ball. A straight in shot will throw the *most* as a result of spin. Also, speed will have a huge effect on the amount of throw. More speed, less throw.
Hope this helps. I recommend shooting some straight in shots and experimenting with left and right english, and speed. Notice how hard it is to shoot balls hard with lots of spin and make the shots? See how much throw you can create at various speeds.
Hope this helps.
KMRUNOUT
I didnt go to deep in my previous post because it is a VERY controversial topic .Alot of opinions on what causes what and why,,good luck :smile:
FYI, you can find lots of videos, illustrations, and articles on these topics here:
and
Enjoy,
Dave
Throw
You could certainly fill in the gaps with asking questions on this board, and I'm sure you'd get the asnwered pretty well, but you should consider picking up a book on pool or two. The two Ive read that are the most worthwhile, Byrne's Byrne’s Standard Book of Pool and Billiards is pretty much the gold standard, and the other funny enough was written by the guy who post above me, The Illustrated Principles of Pool and Billiards. Byrne's book is a good place to start, and Dr Dave's book will cover the physics of the how and why in a lot more detail.
Both books have made me a lot better. My english and understanding on caroms, throw, ways out of tricky spots, etc (the kind of stuff you don't just figure out on your own in a matter of a few years) is way ahead of the rest of my game. If someone could just write a book that would help me shoot straight and stay focused at the table I'd be set.
You could certainly fill in the gaps with asking questions on this board, and I'm sure you'd get the asnwered pretty well, but you should consider picking up a book on pool or two. The two Ive read that are the most worthwhile, Byrne's Byrne’s Standard Book of Pool and Billiards is pretty much the gold standard, and the other funny enough was written by the guy who post above me, The Illustrated Principles of Pool and Billiards. Byrne's book is a good place to start, and Dr Dave's book will cover the physics of the how and why in a lot more detail.
Both books have made me a lot better. My english and understanding on caroms, throw, ways out of tricky spots, etc (the kind of stuff you don't just figure out on your own in a matter of a few years) is way ahead of the rest of my game. If someone could just write a book that would help me shoot straight and stay focused at the table I'd be set.
