Pushing the limits ...

WilleeCue said:
It is a Roybi laminate trimmer.

The trick is not that it is cutting so deeply ... it is that it is cutting a 30" piece of shaft wood that deep without destroying it. Vibration and tool chatttering can get so bad it will cut the dowel into.
The pass takes about 5 to 6 minutes.
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Thanks for the reply (you too Joey !), and I believe it Willee. Just out curiosity I calculated the chip load ... a 6 'wing' cutter spinning at 30,000 rpm covering a 30" shaft in 5 minutes cuts about 0.00003" per blade pass. I can see how that would not put much strain on the shaft, it's nearly polishing :) . Now, for perhaps a crazy idea, but if going faster causes chattering, could a follow rest somehow be used to allow a faster feed rate ? Not only for the time involved, but for the tool wear as well. Of course I am not a cuemaker, just an amateur metal-hacker and occasional woodworker with dangerously little knowledge.

Dave
 
DaveK said:
Thanks for the reply (you too Joey !), and I believe it Willee. Just out curiosity I calculated the chip load ... a 6 'wing' cutter spinning at 30,000 rpm covering a 30" shaft in 5 minutes cuts about 0.00003" per blade pass. I can see how that would not put much strain on the shaft, it's nearly polishing :) . Now, for perhaps a crazy idea, but if going faster causes chattering, could a follow rest somehow be used to allow a faster feed rate ? Not only for the time involved, but for the tool wear as well. Of course I am not a cuemaker, just an amateur metal-hacker and occasional woodworker with dangerously little knowledge.

Dave
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The blades are cheap. So, even if you have to replace them every two weeks, it wouldn't be too bad.
I get a tool push off though near the center of the shaft when cutting fast.
Maybe a light spring pushing a wheel in the backside of the wood would help.
 
JoeyInCali said:
The blades are cheap. So, even if you have to replace them every two weeks, it wouldn't be too bad.
I get a tool push off though near the center of the shaft when cutting fast.
Maybe a light spring pushing a wheel in the backside of the wood would help.
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I think one cuemaker uses a slab of foam to lightly rub against the back of the shaft to reduce vibration.
 
Call me crazy but I would think 5 minutes to make a pass on a shaft isn't too slow....I can't imagine any cuemaker being so rushed that 5 minutes just doesn't 'cut' it.....LOLz
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showboat said:
Call me crazy but I would think 5 minutes to make a pass on a shaft isn't too slow....I can't imagine any cuemaker being so rushed that 5 minutes just doesn't 'cut' it.....LOLz
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I guess it would depend on how many shafts you wanted to make in a given period of time, and also the opportunity cost of having the tool occupied.

Dave
 
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