changing weights

9ballrun

9ballrun

AzB Silver Member
Silver Member
I have a Joss that I shot with and wanted to reduce the weight of it. I know that I can change the weight bolt but was concerned that it would change the balance of it. I have never experimented with this before so all feedback would be appreciated.
Thanks
 
If you add weight to the butt, the balance point will move back slightly...take away weight, and it moves forward. But the change would be pretty insignificant. If you remove an ounce from a 20 ounce cue, that would be 5% of the weight. Most of the weight is in the butt anyway. I would think the change in balance point would be less than an inch. Probably not enough to be noticable. Maybe one of our engineering/mathmatics experts could tell you more precisely. I'm sure there is a formula to calculate it. I just don't have a clue what it might be.
Steve
 
T= r x F

that means torque is exerted at a distance r from center of mass of object. It would depend on where the weight bolt was located in relation to the center of mass of the cue. You can actually ADD weight to the cue, and still not have it change its balance point, it would just have to be closer to center.

If your weight bolt is close to the end of the butt, and it is removed the balance point would be moved forward considerably. However, if it is closer to center, it won't really change much at all.

Most cues do not allow your weight bolt to go deep into the butt, so your weight bolt being removed will most likely move your balance point forward (as stated previously).

Finding the exact center of mass involves triple integrals, so I am guessing giving you that formula wouldn't help much.
 
my estimation,,,it's about 1/2" +/- at the balance point per 1oz +/- of weight.

if you have a "custom cue", understand that it was built a certain way with certain specs, so merely changing the weight alters the intent of the cuemaker.
 
9ballrun said:
I have a Joss that I shot with and wanted to reduce the weight of it. I know that I can change the weight bolt but was concerned that it would change the balance of it. I have never experimented with this before so all feedback would be appreciated.
Thanks
Click to expand...
How much do you want to change it? You may have to cut the bolt in half to get the desired weight. If so, make sure you put a couple nuts on it, saw it off and then back the nuts off so you wont ruin the threads.
 
mworkman said:
How much do you want to change it? You may have to cut the bolt in half to get the desired weight. If so, make sure you put a couple nuts on it, saw it off and then back the nuts off so you wont ruin the threads.
Click to expand...

It's about a 19.5 now and I would like to get it down to an 18 if it wouldn't change things to much. I thought about cutting the bolt but I wasn't sure if I should do that or just order a new one.
 
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