Another Aiming Method

[dr_dave]

tip reflection in OB

LOL...I like NV 3.2 that pretty much exactly describes the method. I stumbled onto that method while practicing so that I could "verify" my chosen verticle axis point on the OB using the 3-line system.

It is nice to see some validation of that method.....

I did not think I was going to come up with something that had not already been thought of before...LOL.....I was told by one person that it was called a "center to center" system devised by I am not sure who... (The name Hal Mix pops in my head)

When I made NV 3.2, I hadn't heard of the technique before (so I also thought it might have been "new"); but, in retrospect, because the technique is so obvious and natural, I'm sure many people have "thought of it" before over the hundreds of years cue sports have been around.

The only thing that was missing was how to determin where you place your cue tip (how do you determin that you have the tip placed at "center ghost ball") without placing another ball on the table in the ghost ball position?

I kind of described in my previous post that you can use the reflection of the tip on the OB to determin the center GB spot (on most tables with normal overhead lighting)

If you ever revise NV 3.2"]NV 3.2[/URL] you might consider playing around with that and if you like it add it in.

That tip reflection thing is a good idea. I'll have to give it a try. It seems to me that the position of the reflection might depend on the position (height and distance) of your eyes relative to the OB; but this should be easy to "calibrate" for an individual.

Regards,
Dave

 

[SpiderWebComm]

I know the system works for you. I've seen you pocket balls very cleanly, and it's hard to argue with success, but I do think you're making a lot of little adjustments when you do your aligning and pivoting.

Not to be funny, but I too just went down to my table(not as pretty as yours), and tried different pivot points on the cue and different distances from the OB and although they worked for you, they didn't work for me. Of course I'm being a robot doing these pivots and you've acclimated yourself to the technique and whatever adjustments must be made subconsciously.

Sometimes the area on the cueball looks close to where it should be after a pivot, but it would look close for any distance over a couple of feet, since the difference between a full hit and an ultra thin cut on the OB with respect to center cueball/tip contact is only a matter of
about 1/2 inch at 2 feet, or 1/4 inch at 4 feet.

Here's a copy of my old post from the other thread for those who are interested. For some reason you have to go to page 2 before you can see page 1. Go figure. Maybe we can come up with an experiment to prove or disprove this.

CueTable Help

Your diagram doesn't look right. How did you do it in cuetable.com? How did you simulate the pivot? When you rotate the cue, it rotates around an imaginary ball---not from a pivot point. Is there a pivot option? How did you line it up? Sorry for the questions, I'm just trying to figure this program out-

Dave

 

[halhoule]

pool

I just realized that to make the method better, use either the left or right edge of the cue instead of the center. It will not only sharpen the lines, but also allow you to see when you're over the exact center of the cueball when you roll back.

I CAN HELP YOU WITH A BETTER METHOD IF YOU WILL LISTEN.

HAL HOULE

484 623 4144

 

[Patrick Johnson]

I think the center between the 2 balls is the only pivot point that automatically finds the 2 contact points no matter what angle you're shooting.

It's a basic geometry theorem that "opposite angles are equal" - i.e., two intersecting lines form equal angles on opposite sides of their intersection. This means they'll be equal distances apart at equal distances from their intersection.

The CB and OB are at equal distances from the pivot point (the intersection of the line-between-centers and your cue stick) and their contact points are equal distances from their centers.

Ipso factoid.

pj
chgo

 

[Angle Detective]

Your diagram doesn't look right. How did you do it in cuetable.com? How did you simulate the pivot? When you rotate the cue, it rotates around an imaginary ball---not from a pivot point. Is there a pivot option? How did you line it up? Sorry for the questions, I'm just trying to figure this program out-

Dave

There's no pivot option in cuetable that I can find. It was a trial and error thing to get it where I wanted. Drag, rotate, drag a little more, rotate a little more, etc.

I've been doing a little experiment on my pool table drawing lines and angles on masking paper and pivoting with a yardstick from different pivot points. You were right about pivoting further down the stick rather than close to the cueball. The center still changes as the pivot gets further away from the cueball, but it does so in smaller and smaller amounts.

One thing you might want to try is the same pivot from different points on the cue and noticing where the edge of the butt of your cue ends up over the rail. You'll see the differences for different pivot points more easily this way.