Coring, tolerances?

Try masking tape when you're pushing and twisting the core into a blind hole for a couple of minutes while the epoxy is moving slowly to the other end up a glue relief spiral from hydraulic pressure.

I did and it didn't hold up. I guess I need better masking tape if that's working for every one else who cores this way. It does stay just fine with a quick slide through to an open ended piece of wood. No disputing that. Even a wadded up paper towel does the trick then. Or just wipe it out when it pops out the other end in 5 seconds for that matter.

JC
 
I use the blue 3M tape and it holds. I'm fairly sure that none of us just quickly plunge the core up through the bore. Everybody I know twists the core as they slowly work it through the bore. With the bore being open both ends, there shouldn't be any hydraulic pressure. I can't think of any scenario where the tape's adhesion could be compromised, so perhaps you tried some tape that wasn't very sticky?
 
qbilder said:
I use the blue 3M tape and it holds. I'm fairly sure that none of us just quickly plunge the core up through the bore. Everybody I know twists the core as they slowly work it through the bore. With the bore being open both ends, there shouldn't be any hydraulic pressure. I can't think of any scenario where the tape's adhesion could be compromised, so perhaps you tried some tape that wasn't very sticky?
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Thanks Eric,

Sorry for the confusion. If you read my post further up in the thread a bit describing how I'm coring it should make sense. I'm pushing the core into a blind hole. The entire subject of the center was just a minor afterthought of the main idea I was talking about. I believe I am going to melt some paraffin into the next one, that actually sounds like a good idea to me even though I don't think Joey even intended it like that.

JC
 
I store a chunk of beeswax above a light fixture to keep it warm & pliable. You can just "wipe" it into the center from a few different directions. Very handy & it works great.
 
FWIW, if you really want to you can drill a bunch of centers in a block of wood and make a mold....and then make rubber plugs with a tiny nail through the center. You wouldn't use the wood as the actual mold...there's a couple of steps to get there, but there are tons of tutorials online for anyone that wants to do it. The process is mind numbingly simple.

Tap it in before gluing, pull it out after. You could probably even sell them for a few bucks each if you want to.
 
I like using masking tape myself but if you are going to be machining the end off after the epoxy has cured why not just cap the end with a thin slice of scrap wood and some thin ca. Machine it off and your centre should be good to go.
 
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dzcues said:
I store a chunk of beeswax above a light fixture to keep it warm & pliable. You can just "wipe" it into the center from a few different directions. Very handy & it works great.
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Ha! Another use for beeswax. I use it on drill bits & tooling sometimes, but never as a center hole plug. Clever :idea:
 
I can see where using tape to seal a hole on the business end of a dowel being forcibly pushed into a BLIND hole with a sticky fluid may cause the tape to dislodge with the twisting and pushing, I have seen it myself in a couple instances I tried in a somewhat similar deal.
NOW, my thoughts on using silicone sealer to seal the center hole.....as long as it has cured properly first...
- it's the joint end, the center hole is usually about .120" dia by about 120" deep? This is the same end where everyone ends up facing off and boring at least a .250" Dia. hole about 3" deep....to install a metal pin, so how does silicone sealer hurt this? Please explain how wide and deep does silicone penetrate wood? Any deeper than what gets bored out? It's ok to be skittish of an idea, but why knock it with no real theory to back it?
My opinion...as insignificant as it is, says ANY thought of contamination is drilled or bored out of existence when installing the joint pin
It's not like we are sending men to the moon where something failing under thousands of pounds of pressure causes men(women) to die...It's a fricken poolcue people.

It's Just like when someone here thought that 1/2" or 3/4" plywood wasn't strong enough to block UV light from going thru it and causing untold issues on the human race....
Sometimes There are times for putting down, questioning, or doubting one's methods, but I don't see this as one of them.
dave
 
Dave38 said:
I can see where using tape to seal a hole on the business end of a dowel being forcibly pushed into a BLIND hole with a sticky fluid may cause the tape to dislodge with the twisting and pushing, I have seen it myself in a couple instances I tried in a somewhat similar deal.
NOW, my thoughts on using silicone sealer to seal the center hole.....as long as it has cured properly first...
- it's the joint end, the center hole is usually about .120" dia by about 120" deep? This is the same end where everyone ends up facing off and boring at least a .250" Dia. hole about 3" deep....to install a metal pin, so how does silicone sealer hurt this? Please explain how wide and deep does silicone penetrate wood? Any deeper than what gets bored out? It's ok to be skittish of an idea, but why knock it with no real theory to back it?
My opinion...as insignificant as it is, says ANY thought of contamination is drilled or bored out of existence when installing the joint pin
It's not like we are sending men to the moon where something failing under thousands of pounds of pressure causes men(women) to die...It's a fricken poolcue people.

It's Just like when someone here thought that 1/2" or 3/4" plywood wasn't strong enough to block UV light from going thru it and causing untold issues on the human race....
Sometimes There are times for putting down, questioning, or doubting one's methods, but I don't see this as one of them.
dave
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Silicone gets everywhere, and once it's in your shop you'll NEVER get rid of it. You'll be battling random fish eye in your finish for the rest of your life.
 
I don't see the issue with using silicone RTV. I have used silicone based products as long as I have been making cues, whether for slicking shafts or lubricating jigs/machines/hinges. I have yet to encounter any of the issues I read about on the forums.
 
Silicone in a shop full of wood is like gambling.
Sometimes you win but sooner or later you're going to lose.

...It's a fricken poolcue people.
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Maybe for some people this is a true statement.

But for me, it's a whole lot more.
I'll start with putting food on my table.....
putting clothes on my back......
putting gas in my truck so I can go buy the aforementioned.

So yea....it urks me a little when people make a comment like this.
It represents that we're not supposed to care and just do whatever the hell you want.
 
BarenbruggeCues said:
Silicone in a shop full of wood is like gambling.
Sometimes you win but sooner or later you're going to lose.
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Everything we do is a gamble. I pay good money for wood that I know is likely to become trash, but maybe I get lucky & it becomes a high end cue. I use chemicals that are known carcinogens, but maybe I will get lucky & avoid health issues. My shop is full of flammable fluids and fine saw dust, yet I sharpen my drill bits in the same space. At any moment it can go poof, or I could develop cancer & leave my family alone, or at minimum that wood can go south & I lose that money. It's a daily gamble but we weigh risk with reward & do what we do. In the entire scheme of cue making, I would surmise that using RTV in a center hole is one of the more trivial gambles a guy could take. The biggest gamble we take is relying on pool players to support our industry.
 
qbilder said:
Everything we do is a gamble. I pay good money for wood that I know is likely to become trash, but maybe I get lucky & it becomes a high end cue. I use chemicals that are known carcinogens, but maybe I will get lucky & avoid health issues. My shop is full of flammable fluids and fine saw dust, yet I sharpen my drill bits in the same space. At any moment it can go poof, or I could develop cancer & leave my family alone, or at minimum that wood can go south & I lose that money. It's a daily gamble but we weigh risk with reward & do what we do. In the entire scheme of cue making, I would surmise that using RTV in a center hole is one of the more trivial gambles a guy could take. The biggest gamble we take is relying on pool players to support our industry.
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Probably more dangerous than diving under a nuclear power plant. ;)



...said the thread that wouldn't die. :rolleyes:
 
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