Lets discuss cushion nose heights!

realkingcobra

realkingcobra

Well-known member
Silver Member
You have 3 pool tables, let's say they're all 8fts, for the sake of argument, they're 3 different manufacturers as well.

When the nose heights on all 3 tables are measured, all three share the exact same nose height, 1 7/16" and let's say they all have brand new cushions on the rails.

Table One; the tables banks the balls perfect, balls come off the rails perfect, everything is perfect.

Table two; the balls die when banking them, have to bank hard to get the cue ball to go 3 rails around the table. When trying to get position play, you have to shoot harder than normal to get the cue ball where you want it.

Table three; rails play like a pin ball machine, springy as hell, ball seem to come off faster than they go into the rails, and before long, the newness of the cloth has worn off, and now balls are starting to hop off the rails.

Keep in mind, all three tables have the identical 1 7/16" nose height, same cushions, same new cloth, and all the rail bolts are tight.

Now here's the question, WHY do all 3 tables play so differently??? Come on you experts, jump in and answer if you dare! This should be a good discussion!!! Maybe some of you will actually learn something here, and either put it to use, or at LEAST know more about the effects of how rails react before you jump in with simple answers.

And for those who CAN NOT stick to the subject, please DON'T respond!! I'm ASKING you nicely, but only ONCE!!

Glen, the "Realkingcobra"
 
Different subrail thickness..


Envoyé de mon iPhone en utilisant AzBilliards Forums
 
If the nose is the same height, does the angle of the cushion matter? I've seen some cushions that are nearly level on the upper face and others that slope down a bit.
 
tomatoshooter said:
If the nose is the same height, does the angle of the cushion matter? I've seen some cushions that are nearly level on the upper face and others that slope down a bit.
Click to expand...
Here's the formula, A + B= C A is the subrail thickness, B is the desired nose height, and C is the unknown subrail bevel that it takes to make A & B work together. But, as I already stated, the formula that everyone seems to like to quote of 63 1/2% of the ball, +/-1% meaning 63 1/2% of a 2 1/4" ball is 1 27/64"s +1%= 1 29/64's -1% = 1 25/64"s only works when applied to a rail being 1 11/16" thick. No other rails can use that formula, because the cushions will never play right! There is a different way to figure out the nose height for all other rails using K66 cushions, NOT K55 cushions.
 
tomatoshooter said:
If the nose is the same height, does the angle of the cushion matter? I've seen some cushions that are nearly level on the upper face and others that slope down a bit.
Click to expand...
The backend height of the cushions, the point where the cushions line up with the top edge of the sub rails determines exactly how the nose of the cushions are going to react when the balls come into contact with them, the body position of the cushions determines the energy delivery behind the nose height of the cushions, if that makes any sence.
 
realkingcobra said:
Here's the formula, A + B= C A is the subrail thickness, B is the desired nose height, and C is the unknown subrail bevel that it takes to make A & B work together. But, as I already stated, the formula that everyone seems to like to quote of 63 1/2% of the ball, +/-1% meaning 63 1/2% of a 2 1/4" ball is 1 27/64"s +1%= 1 29/64's -1% = 1 25/64"s only works when applied to a rail being 1 11/16" thick. No other rails can use that formula, because the cushions will never play right! There is a different way to figure out the nose height for all other rails using K66 cushions, NOT K55 cushions.
Click to expand...

Now that we've all learned something....back to regular programming.
 
I have come across this before. The nose height was close to normal. But the balls still would hop on firmer shots. When the cushion was being compressed, the nose would actually be pushed downward. We installed new Penguin rails with proper cushions and the problem was gone. Previous installer obviously installed the wrong cushions.
 
buckshotshoey said:
I have come across this before. The nose height was close to normal. But the balls still would hop on firmer shots. When the cushion was being compressed, the nose would actually be pushed downward. We installed new Penguin rails with proper cushions and the problem was gone. Previous installer obviously installed the wrong cushions.
Click to expand...
See, that's the part you're missing, the OP in the thread you responded to, said the rails were RIDGEBACK rails, installers DON'T install the cushions on those rails, OR on the Penguin rails either for that matter, as the come with cushions installed. When you give advice, and facts have been given about the situation at hand, you CANT generalize the situation as the same problems you've ran into before, because in this situation, the cushions are NOT the prime suspect causing the ball hop, so the problem must be from some OTHER reason, right???
 
realkingcobra said:
See, that's the part you're missing, the OP in the thread you responded to, said the rails were RIDGEBACK rails, installers DON'T install the cushions on those rails, OR on the Penguin rails either for that matter, as the come with cushions installed. When you give advice, and facts have been given about the situation at hand, you CANT generalize the situation as the same problems you've ran into before, because in this situation, the cushions are NOT the prime suspect causing the ball hop, so the problem must be from some OTHER reason, right???
Click to expand...
Was this his personal table or just one he plays on somewhere?

It's a small possibility they are not Ridgeback rails at all.
 
Anyway, moving along with the subject of cushion nose heights, how is the nose height determined on rails with subrails less than 1 11/16" thick?

For example, let's say a Gandy, or an Olhausen?
 
You must log in or register to reply here.
Back
Top