How to Curve an Object Ball

Thanks, I'll take a look.

Freddy argues nap effects happen, to a lesser extent, even on modern cloths. Although here in the UK, you still see napped cloths on snooker tables and some pool tables.
Every so often I will see an object ball do a weird turn on my Snooker table. Usually I only notice because a ball slightly turns and sinks when I’m certain it wasn’t going to. However, can’t take credit as no idea what I did.
 
Every so often I will see an object ball do a weird turn on my Snooker table. Usually I only notice because a ball slightly turns and sinks when I’m certain it wasn’t going to. However, can’t take credit as no idea what I did.

If you want to see some weird turn, check out the John Schmidt and Thorsten Hohmann clips on the OB swerve and turn resource page.

Enjoy!
 
I have never seen this on modern cloth myself, nor have I ever seen a convincing demonstration. See the OB swerve and turn resource page for convincing counter-demonstrations.
I've had a look through the videos now, and it seems to me that the videos on ball turn (presumably on non-napped cloth) show very slight turn, at slow speeds. Albeit not enough to be 'useful'. (I'd guess that the videos are all shooting towards the head-end, so would be against the nap, if there were one.) Would you agree?
 
It's interesting to me that you need follow on the CB to get the bend - I suppose that's to have downward motion on the CB contact point as it hits the OB (to create masse rotation)?

Did you discover an optimum cut angle? Frame-by-frame viewing shows a bigger overcut at contact than I expected.

pj
chgo
I'm glad you asked 'cause I was wondering the same thing. I think I was stuck in the mindset of only viewing it like how sidespin transfers.
 
I've had a look through the videos now, and it seems to me that the videos on ball turn (presumably on non-napped cloth) show very slight turn, at slow speeds. Albeit not enough to be 'useful'. (I'd guess that the videos are all shooting towards the head-end, so would be against the nap, if there were one.) Would you agree?

I have never noticed a nap turn effect on a modern high-quality pool table cloth. For more info and examples of ball turn, see:

 
Most good players have realized that object balls curve or bend on slow follow (cut)shots.

The only place I've really encountered resistance to that idea is here on this forum. Apparently it was impossible to bend an object ball and impossible to bend a bankshot...Sigh.
 
Most good players have realized that object balls curve or bend on slow follow (cut)shots.
I think there can be confusion with throw which is instantaneous, as opposed to curve which is, well, a curve. Can you do the challenge? How much do you think you can get an object ball to curve?
 
I've exploited the slate gap bump in a game or two.

If you know where the idiots that recovered the table with their glue or whatever it is they use and created a bump across the joint, you can use that in a soft shot to manuever the cb around an obstacle. Or to get shape after a hit.

But if there were table mechanic standards in place throughout the land, that wouldn't be possible. So, try it out for the next 100 years or the next 1-P game and see how it works for you, too. Hurry, before standards are in place.


Jeff Livingston
 
In terms of Daves challenge I will make an attempt.

However before solving the grand problem let me introduce some lower class problems.

I am introducing this concept because there is a slipping and "transfer limit."

for the arrangement below try to pocket the 13. each ball is a ball width apart. if you double the widths you get more ability to pocket the 13.

instead if just answering how much an OB can be curved, maybe its worth discussing what minimum or maximum distance a curve by the OB can be observed. the percentage of energy is so low that to measure it would take infintesimally smaller measurements than available.

i am mathematically confident that an OB cant be curved at certain distances. However at lengths larger than a pool table I lose confidence proportionally.

In terms of math I am saying Daves question is vague because the theory and practical overlap and diverge.

4CF3BA4E-3823-4573-AFAB-22181795FAAE.jpeg
 
I manipulated the contact area of two balls touching at rest. From rest its easier to study throw transfer.

Based on the demonstration inferences can be made. I think there is a limiting factor in curving the object ball. With the modification you can hypothesize why and how.

its called the justin masse transfer limit.
my full name is in my profile

maybe the justin state of transfer dynamic

or addition of uniform masse on parallel bodies

i am the solver
 
Last edited:
Back
Top