Bent,
Nick
Correct answer!
Bent,
Nick
I think DZ posted one awhile back. Essentially, he spun the shaft on a lathe without the support of a tailstock and it stayed on center without any wobble that I could see. What's even more amazing about what he did was the fact that the shaft was somehow perfectly balance all the way around as well. Maybe it was some trick or I am not remembering properly.
Man, for you guys that define a taper roll as a warp then every shaft that I've ever owned has been warped. I've seen only 1 or 2 shafts that were actually straight to the eye. I saw no taper roll or " warp " at all. I'll bet you that if you put it on a lathe and used an indicator, then the indicator would show a movement. Does that mean that the shaft is warped? If you cannot see a movement, but prove that there is a movement, then is it actually warped? Where do you guys draw the line? My definition of a warped shaft is one that has the tip come off the table when rolled and the butt is dead straight. Maybe it's just a wording thing, or maybe it's just me, but if the tip and the joint, and the butt stay on the table when rolled, then the cue is not warped in my opinion. But that's just me.
No trick. Just a good shaft. That said, it might still have shown a variance in the light when rolled on a pool table. The demonstration was meant to show the accuracy of the joint work - not the straightness of the shaft.
See the video HERE
Has anyone else noticed the best players worry the least about a cue being dead straight? If I see a real player pick up a cue off the wall, it seems the only thing they look at is the tip. Of course, they won't pick one that's jumping off the wall, but as long as it's reasonably straight it's ok with them.
Has anyone else noticed the best players worry the least about a cue being dead straight? If I see a real player pick up a cue off the wall, it seems the only thing they look at is the tip. Of course, they won't pick one that's jumping off the wall, but as long as it's reasonably straight it's ok with them.
This was kinda my point. How straight would that shaft look if it hadn't been faced on absolute center, the hole wasn't dead nuts center-line, or threads not cut to snugly fit the pin? A slight variance in any of those machining steps would have resulted in a much different video, even if the shaft itself was dead nuts perfect straight. If the shaft was dead perfect straight but joint machining was even slightly off, then the shaft will show considerable light variance as it's rolled on the table, and somebody would swear it's warped.
If there is much light variation at all as you slowly turn the shaft at eye level (with no downward pressure) , the shaft is warped. This technique shows warpage. Taper roll is just a nice way of saying the shaft is warped. By sighting the light variation, you might also see that your shaft is not perfectly round. Shaft making lathe's vibrate the taper bar and that can make some shafts slightly oval.
In terms of value, a warped shaft is not as serious as a warped handle. You can always get another shaft reasonably made, but a handle is the cue.
In most cases, I feel it describes the location of a slight roll in the shaft..ie, in the taper/stroke area of the shaft. This results in a variation of light when the shaft is rolled on a table. The cause can be a warp, or it can be a variance in the thickness of the taper/stroke area.
A taper roll does not always mean that a shaft is not straight on center. A shaft can exhibit a variation of light when rolled, and still spin straight on the lathe.
When a player receives a brand new, dead straight shaft, and plays with it, then reaches into his case, grabs a piece of sandpaper and sands away on the shaft, he begins to introduce taper roll to that otherwise dead-straight shaft.
Often, the term "taper roll" has been used to ID a slight warp in the shaft, but that is not always the case.
Joe
Who would use sand paper on a shaft?