Down the shaft again…

eyesjr

AzB Silver Member
Silver Member
With the advent of various break shafts on the market, I have a question about the properties and observations concerning them.

Of course Purple Heart is stiffer and denser, and of course this stiffness transfers more energy into the cue ball. The question is, how much more energy?

it is known that cue vibration is a product of inefficiency, but how much is there in an arbitrary playing cue? Most of the vibration comes after the hit, and it affected by off-axis strikes (directional force) and etc. Stroke inefficiency and inaccuracy have relatively, in my opinion, plausibly more impact upon the efficiency.

Has anyone tested a PH shaft vs wood shaft? Were measures taken to discriminate against the effects of mass (weight bolt change etc)?

How much do we know about this?
 
The future is in Carbon fiber, in twenty years your probably not going to see much wood anymore. It happened in Tennis and Golf. As soon as carbon fiber was intoroduced wood became non-existant.
 
With the advent of various break shafts on the market, I have a question about the properties and observations concerning them.

Of course Purple Heart is stiffer and denser, and of course this stiffness transfers more energy into the cue ball. The question is, how much more energy?

it is known that cue vibration is a product of inefficiency, but how much is there in an arbitrary playing cue? Most of the vibration comes after the hit, and it affected by off-axis strikes (directional force) and etc. Stroke inefficiency and inaccuracy have relatively, in my opinion, plausibly more impact upon the efficiency.

Has anyone tested a PH shaft vs wood shaft? Were measures taken to discriminate against the effects of mass (weight bolt change etc)?

How much do we know about this?
I cannot look at cue vibration as inefficiency…..if you put side english on a ball….and the cue doesn’t give..the cue ball will.
 
it is known that cue vibration is a product of inefficiency,
No vibration is from non-axial forces at the tip during contact. and bending moments in the shaft (due to flexibility of the shaft).
but how much is there in an arbitrary playing cue?
Some more some less.
Most of the vibration comes after the hit,
Do you know that none comes before the hit ?? s/most/all/
and it affected by off-axis strikes (directional force) and etc.
And the bending of the shaft under contact forces. But this is mostly 2nd order.
Stroke inefficiency and inaccuracy have relatively, in my opinion, plausibly more impact upon the efficiency.
You keep using the word efficiency in a way that makes me believe that you don't know the definition of the word.
Efficiency is delivered force divided by available force
OR
delivered momentum divided by available momentum
OR
delivered energy divided by available energy
depending on what kind of efficiency you are talking about. {Hint: there are more than one kinds of efficiency}.
How much do we know about this?
Stiffness of materials and elastic collisions are well understood disciplines.
 
I had a carbon break cue and I now have a Purple Heart break cue with a Purple Heart laminated break shaft and I like the Purple Heart custom better
 
What is a great break cue- a cue that results in: maximum cue speed/collision force. - and cue ball accuracy against the stack as desired-- coupled with some reasonable CB control as per final CB landing spot. I am sure that it is a combination of the two. I think it is really that simple.

So, I think that cue speed/ collision force is mostly based on the ability of the person breaking, and the same with CB accuracy. - both aspects of the break mostly result from one's individual abilities; and break cue choices can be as individualistic as playing cue choices. However, I think that break cues alone affect the final break outcome even less than playing cues affect one's overall play on the table.

My overall life's experience with various break cues leaves me to believe that you should use whatever you trust the most; but that one's break would not suffer much using a different quality brand break cue. I just am not sure that one break cue is truly "better" than another, just like a Scruggs playing cue is not, in and of itself as a cue, better than a Richard Black cue.
 
With the advent of various break shafts on the market, I have a question about the properties and observations concerning them.

Of course Purple Heart is stiffer and denser, and of course this stiffness transfers more energy into the cue ball. The question is, how much more energy?

it is known that cue vibration is a product of inefficiency, but how much is there in an arbitrary playing cue? Most of the vibration comes after the hit, and it affected by off-axis strikes (directional force) and etc. Stroke inefficiency and inaccuracy have relatively, in my opinion, plausibly more impact upon the efficiency.

Has anyone tested a PH shaft vs wood shaft? Were measures taken to discriminate against the effects of mass (weight bolt change etc)?

How much do we know about this?

For a break shaft, purpleheart is good to use. Gives a stiffer hit feel at a similar diameter to maple. How much energy? Not enough to matter much since very few people break at their max speed now, most breaks are like 60-75% speed.

 
The future is in Carbon fiber, in twenty years your probably not going to see much wood anymore. It happened in Tennis and Golf. As soon as carbon fiber was intoroduced wood became non-existant.
Ahh the days of hickory shafts. I came in second at a caddy tournament playing with a set of them in 1965 at Bass Rocks Golf Course in Gloucester Mass. A true links golf course next to the Atlantic Ocean. Fairways never got watered, unless it rained. The greens got watered on week days.

I also believe carbon fiber or some other man made material will replace wood shafts.
 
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