CB Testing

[Lawnboy77]

Well I was going to do some cushion testing, Artemis vs. Superspeed, but I got side tracked and just rolled my collection of cue balls off my calibrated ramp…just for curiosity sake. Interesting results. The Centennial CB easily won this little soap box derby by a full ball length. Second place goes to the cheap one that came with my standard Aramith set. The red circle ties for third with two red dots and last place goes to a cheap knockoff red circle. All balls were cleaned by hand and each rolled 5 times to verify. Surprising enough there was no real variation to speak of between the 5 rolls for each. The balls were placed to the side once the distance was established for each ball to make room for the next. The Artemis vs. Superspeed will be video taped...more to follow on that.

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[rexus31]

Where's the Measle Ball?

 

[Patrick Johnson]

Thanks for the info - looks like Earl could use it.

pj
chgo

 

[Lawnboy77]

Where's the Measle Ball?

I don't yet have the Measle Ball.

 

[ChrisinNC]

Well I was going to do some cushion testing Artemis vs. Superspeed, but I got side tracked and just rolled my collection of cue balls off my calibrated ramp…just for curiosity sake. Interesting results. The Centennial CB easily won this little soap box derby by a full ball length. Second place goes to the cheap one that came with my standard Aramith set. The red circle ties for third with two red dots and last place goes to a cheap knockoff red circle. All balls were cleaned by hand and each rolled 5 times to verify. Surprising enough there was no real variation to speak of between the 5 rolls for each. The balls were placed to the side once the distance was established for each ball to make room for the next.

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I would suggest you’d need to roll each ball a minimum of 10 times off of different locations on one end cushion and then 10 more times (total of 20) off of different locations on the the opposite end cushion, then take an average of those 20 trial rolls for each ball, for this comparison test to have any value.

 

[kling&allen]

Do the cue balls vary in weight?

 

[Lawnboy77]

I would suggest you’d need to roll each ball 10 times off of different locations on one end cushion and then 10 more times (total of 20) off of the opposite end cushion, then take an average of those 20 trial rolls for each ball, for this comparison test to have any value.

I disagree, all balls need to be rolled in the exact position on all rolls to make this test worth anything. Like I had stated before, 5 rolls for each with no deviation was exactly what i got, if there was no deviation with 5 rolls, what makes you think there would be deviation with 10?

 

[Patrick Johnson]

Would a significantly heavier CB roll farther than a lighter one?

pj
chgo

 

[Lawnboy77]

Do the cue balls vary in weight?

No, I don't know the weights. I'll have to weigh them the next time I go to work. I don't have accurate scales to weigh them.

 

[Patrick Johnson]

I disagree, all balls need to be rolled in the exact position on all rolls to make this test worth anything. Like I had stated before, 5 rolls for each with no deviation was exactly what i got, if there was no deviation with 5 rolls, what makes you think there would be deviation with 10?

I believe Chris must be thinking of different cloth conditions at different table locations.

pj
chgo

 

[ChrisinNC]

I disagree, all balls need to be rolled in the exact position on all rolls to make this test worth anything. Like I had stated before, 5 rolls for each with no deviation was exactly what i got, if there was no deviation with 5 rolls, what makes you think there would be deviation with 10?

There could very easily be some locations on your end cushions more lively / dead than other locations, due to various possible reasons. The more varied locations you test, the more meaningful your comparisons will be.

 

[Lawnboy77]

There could very easily be some locations on your end cushions more lively than others, due to various possible reasons.

The ramp wasn't moved, at all, during this test, so all balls were hitting the same spot on the cushion.

 

[Lawnboy77]

Would a significantly heavier CB roll farther than a lighter one?

pj
chgo

Yes, I think the heavier ball will roll farther, but I haven't confirmed the weights of each yet.

 

[garczar]

Well I was going to do some cushion testing, Artemis vs. Superspeed, but I got side tracked and just rolled my collection of cue balls off my calibrated ramp…just for curiosity sake. Interesting results. The Centennial CB easily won this little soap box derby by a full ball length. Second place goes to the cheap one that came with my standard Aramith set. The red circle ties for third with two red dots and last place goes to a cheap knockoff red circle. All balls were cleaned by hand and each rolled 5 times to verify. Surprising enough there was no real variation to speak of between the 5 rolls for each. The balls were placed to the side once the distance was established for each ball to make room for the next. The Artemis vs. Superspeed will be video taped...more to follow on that.

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Pretty tight group. Nothing to worry about. Gotta say tho you really must be bored.

 

[ChrisinNC]

The ramp wasn't moved, at all, during this test, so all balls were hitting the same spot on the cushion.

I understand that, but I’d think you’d want to do the same test off of a different location on that same cushion or on the opposite end cushion, just to see if you get the same results?

 

[straightline]

Try steeper as well. Might get a more definitive spread.

 

[Patrick Johnson]

The ramp wasn't moved, at all, during this test, so all balls were hitting the same spot on the cushion.

How did they end up side by side in the pic? Did you place them after the tests to illustrate the results?

pj
chgo

 

[Lawnboy77]

How did they end up side by side in the pic? Did you place them after the tests to illustrate the results?

pj
chgo

Yes. I just moved them to the side, but didn’t use any measuring device, just eye balled and move in a straight line.

 

[xX-Wizard-Xx]

this is really splitting hairs

 

[Lawnboy77]

Ok, I increased the incline to about double the travel and the blue circle has opened up a bigger lead of about 2 ball lengths. The variations of the 5 rolls did increase, so I just used the longest out of 5 rolls instead averaging. The last grouping you see was the red circle results of 5 rolls. The Brunswick chalk shows the longest roll for the red circle. My conclusion is that when I was missing just a millimeter, or two short on that Dr. Dave/Tin Man rail target drill yesterday it was because of my red circle CB. LOL Okay time to run a few miles...cabin fever has set in. I have no airplanes to work on, or lawnmowers to tear apart so time to go run.

EDIT: The paths were lined up with where the Brunswick GC chalk is in this pic. The chalk on the table did not get in the paths of the travel, but used a marker to the side of travel.

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