Chatter Line?

[Floyd_M]

[Quote Originally Posted by conetip]
The most simple of tests, is to set up the shaft in a lathe and have it running true, being supported buy the handle with the joint and shaft unsupported. Then make up a washer type weight that fits onto the tip,ferrule end of the shaft. You need a reasonable amount of weight to deflect the shaft about 12mm or so. Then slowly rotate the shaft. You will find if there is any spine to the shaft or not. On regular shafts I have done this test to, they seem to have an area that sinks more than another. The side that is raised the most I call the spine side, the side that is the strongest. The difference I have seen is about 2-3mm. I have not done this test on any laminated type shaft, just Maple and Ash.
Neil [/quote]

Years ago when I was working for my mentor, a golf club tester came in with a golf club tester.
He bent a shaft and the shaft spun and settled to its happy place.
He then marked the top of the golf shaft and tested it again.
Again, it settled on the same spot.
We did the test on a radial laminated cue shaft.
It too had a happy place.
That pretty much killed the 360* sweet spot claim.

conetip is talking about shaft deflection for stiffness.
JoeyInCali you're talking about balance.
Two different things.

.

 

[JoeyInCali]

So you're saying most cue makers are not doing there job right?

Do you have a 1" by 30" dowel with you right now ? How many have you manually centered ?
Trace that from end to end then trace one ring next to it from end to end .
You might be shocked what you'll see.

 

[Floyd_M]

Do you have a 1" by 30" dowel with you right now ? How many have you manually centered ?
Trace that from end to end then trace one ring next to it from end to end .
You might be shocked what you'll see.

I'm not sure why you must drift off the original posters question.

Once I understood what he meant was not chatter but grain lines I was able to communicate on his point.
[Mitchxout]
"I'm asking about the the 2 vertical lines, opposed from each other that run the entire length of the shaft. Hope this is clearer."

He's NOT talking about any other grain other than the center one which runs through the entire shaft.