Is there evidence showing that increasing speed increases deflection?
Speed and Deflection
- Thread starter Tennesseejoe
- Start date
How about your own eyes? The harder you strike cb with english the more it squirts, less it swerves back.
Careful with your terms my friend. squirt doesn’t vary with speed, but swerve and squerve do
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squirt/squerve same thing. the harder you hit it the more it squirts.
Squirt is the same at all speeds for a given tip offset, but swerve changes with speed and also with cue elevation and cloth/ball condition.
pj
chgo
Thank you. I have read this several times over the years, however, recently I've seen posts about folks saying there is more deflection with speed. I just wondered if new studies have proved this wrong.
No sir it’s not the same thing.
squirt is how much the ball moves to the left or right off the line with a given tip offset and it’s quantity is due to amount of deflection created by the end mass of the shaft.
Swerve is how much the ball actually curves along it’s intended path.
You can have squirt with very low to no swerve for what it’s worth. But you can’t have high swerve with no to low squirt.
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Yes,
Imagine having the cue strike the CB at 1mm per second, the CB will roll about 4 inches and the deflection of the shaft with be all but imeasurable.
Now imagine having the cue strike the CB at 1Km per second, the shaft will break from the deflection which will be several inches if caught on high speed camera.
So, speed definitely dopes influence deflection.
That would go completely against the whole deflection is a result of the end mass vs the weight of the ball if we’re talking about the ball here not the shaft.
The shaft can bend more due to the Higher speed and energy involved And since it’s connected and has a point it’s hinging at this makes sense…but the ball “squirting more” honestly does not. It’s going to take off from the impact at the same vector it did when struck slower.
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The cb may start on same line/vector but with more speed it doesn't bend back so end result is the cb is further from your shot-line. I guess this is what Dave called 'effective squirt' or something like that. I don't think about this stuff while playing. All i know is the harder you hit it with english the further off-line its going to be. Describe/define it any way you want.
This is the reason I posted this thread.
The angle of squirt in both of your examples will be the same. "Amount" of squirt = the initial angle of the CB as it leaves the tip.
pj
chgo
It’s kind of funny imagining the shaft breaking based on deflection at 1km/second
. As if it would not turn to toothpicks if it hit center ball at such ungodly speeds 
Angles/vectors are never changed by changes in speed. 4” or 400 miles the angles the same as we both are conveying
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Thanks, that clearly defines it for me.... I never thought of it like that. I knew I came to the right place for information. Sometimes folks do not get enough appreciation for contributing...Thanks again.