Wood Pins vs. Metal Pins
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I agree with much of what you say here but want to make a couple of comments. Even though I'm not exqerienced in building cues I have some knowledge in mechanical joint designs, mostly from selling fasteners and torque tools.
Your background and experience as a salesman is not relevent to cuemaking. I hope you do not confuse anyone with your lack of knowledge of cuemaking.
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Wood is weaker than steel. Read the link below. Tensile strength is what needs to be considered not compression or shear strength.
http://www.newton.dep.anl.gov/askasc...9/eng99345.htm
Even if we both don't want to believe that some woods have higher tensile strengths than some metals, I think we can agree that stronger is not always better
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Your link does not work for me.
There are three typical definitions of tensile strength:
Yield Strength - The stress a material can withstand without permanent deformation.
Ultimate Strength - The maximum stress a material can withstand.
Breaking Strength - The stress coordinate on the Stress-strain curve at the point of rupture.
Metal has much higher tensile strentth than wood.
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I totally agree that wood expands and contracts and that there is a trade off in with regards to fit.
One of the best reasons to use steel joint pins.
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Yes the wall thickness of the female thread is thinner but I'm guessing that if the two faces of the parts are machined accurately and mate properly the strength of the joint comes from here not the screw. I've seen dozens of metal jointed butt ends that have broke but never a wood pin design. Again look at the link discussing tensile, compression, and shear strength. It's my suspicion that when a cue breaks, it's operator error. The joint was loose.
I found many years ago that what I guessed or thought about something was not always correct. I have built thousands of cues and I can promise you that the wall thickness of the joint is very important. The thicker the wall - the stronger the joint. Joint collars also help in this area but there is no substitute for the wood supporting the collar.
I have found that in almost all cases when any cue breaks at the joint it was because of abuse. You should remember that high dollar fine cues are usually appreciated more because of their cost than low dollar basic cues. All of the three cussion players that I know have great respect for their cues and treat them with tender loving care. If they didn't they would all be broken at the joint.
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Wood is beautiful and is why most cues are made of wood. I simply admire the craftmanship in making a precision wood thread. Very difficult.
Not all wood is beautiful in my opinion. The reason most cues are made of wood is that wood plays better then aluminum, graphite or other synthetic material. I know that metal is a better pin material than wood. Being difficult never stopped any cuemaker I know of except those that quit.
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I can't tell you for certain if there is better feedback with wood vs metal but if you look at soundproofing one of the techniques incorporated is the use of dissimilar materials because every material has a different resonance frequency thus the sound waves are broken up and not transmitted.
I learned a long time ago that anytime someone tells me that they are not trying to tell me something that they are going to tell me something with the next breath.

You are just trying to cloak your argument with information that is not relevent. The pin whether it is wood or metal does not make contact with the shaft at the end of the screw. The sound is transmitted through the joint faces (end grain) and they are usually wood or wood/phenolic regardless of the pin.
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Yes wood is very difficult to cut and very time consuming. I think this is why most cue joints are metal. It just takes way too long and there's probably more rejects in production adding to business costs.
No cuemaker that I know of and I know plenty of them personally, would refuse to make their cues better by using a wood joint if it in any way enhanced a cues playability or durability. Cuemakers are not bothered by things going wrong in the cuemaking process - we all throw away cue parts and cues frequently - it is just the price of being a cuemakers. If we were worried about that we would all quit. Cuemaking is not for the weak hearted.
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You're right, there aren't many cue makers in this country that use wood pins. I know of 4 or 5. Then there's Helmstetter, Longoni, Hanbat and many others from Europe, Asia and Japan.
Would you care to list the 4 or 5. I only know of one. Also, all the snooker cues I have ever seen utilize a steel pin. Most of these cues are made in Europe and Asia. Those cuemakers that are still using wood pins in their cues are bowing to the 3 Cushion Player Market which is a very small portion of the billiard we all know today. Three Cushion Players are very reluctant to change.
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Finally If wood pin joint design is inferior then why is it that virtually all World Class 3 Cushion players use wood pin cues. And if this design is weaker then why is it that they aren't breaking. After all Carom balls are much larger than pool balls, and the average power exerted is much higher than playing pool. Imagine being in the World Championship match and Ceulemans cue breaks. If anything like this would have ever happened in the past, don't you think these players would be using a cue with a "stronger" joint design?
I know that most Three Cushion Players are reluctant to try anything new.
Three cushion cues are shorter than pool cues. They have larger diameters at the joint than pool cues (thus stronger) and have a conical taper instead of a pro taper that is stronger than pool cues. They certainly do not undergo the stress of a pool cue that is "breaking the balls" and often times having the player fall on top of the cue as he loses his balance. I had one of my cues come in for repair the other day that the player had tried to break the cue over his knee. The pin bent but the wood did not break or crack. It was repaired in about 30 minutes. If it had been a wood pin the shaft would have split and the pin would have broken off.
You should acquire a billiards cue with a metal screw and put it to the test as I have done. They play just as good and are much more durable because metal screws have long ago made wood screws outdated.
You might be surprised to find that many 3C billiard cues have a metal pin.
Just my opinion.
