Thanks Jeff.
Just ordered 3 of them. Will make nice jump cues.
Regards Ed Petersen
What are roasted ash shafts?
Jeff,
I received the Ash shafts today. They look really nice. They are also super straight. Wanted to say thanks for another great product.
Regards Ed Petersen
How much deflection do they have?
That would depend on the cue-maker.
However, deflection (squirt) is almost completely dependent on end mass of the shaft, last 5 to 8"; considering typical wood values of stiffness. (as opposed to say CF)
So everything else being equal, look at the numbers.
Ash is 42 lbs/ft^3 vs hardmaple 44 (maples is denser)
1,320 Janka vs 1,450 (maple is harder)
youngs modulus, 1,740K vs 1,830 (maple is stiffer)
the comparison numbers are so close that it is almost a wash.
IOW, you can find examples of both that are "better" than the other wood at that level.
Which again puts it back to the cuemaker & his selection and machining.
roasted wood is even less dense than the natural product.
So, all in all, comparable builds, the ash ought to be observably lower deflection (lower squirt)
Then it gets back to shooter - not all players enjoy fully LD shafts.
smt
That would depend on the cue-maker.
However, deflection (squirt) is almost completely dependent on end mass of the shaft, last 5 to 8"; considering typical wood values of stiffness. (as opposed to say CF)
So everything else being equal, look at the numbers.
Ash is 42 lbs/ft^3 vs hardmaple 44 (maples is denser)
1,320 Janka vs 1,450 (maple is harder)
youngs modulus, 1,740K vs 1,830 (maple is stiffer)
the comparison numbers are so close that it is almost a wash.
IOW, you can find examples of both that are "better" than the other wood at that level.
Which again puts it back to the cuemaker & his selection and machining.
roasted wood is even less dense than the natural product.
So, all in all, comparable builds, the ash ought to be observably lower deflection (lower squirt)
Then it gets back to shooter - not all players enjoy fully LD shafts.
smt
Does the roasting do anything to the pore structure?
It evaporates volatiles that would take decades or longer to disperse or polymerize "naturally". It closes the cell walls.
Many sources state it makes the wood "stiffer" - I don't believe that in the technical sense, partly because shear strength is reduced (I know they are not directly related).
My only persoanl experience with Torrefied wood is in the construction trades where it is being used to make lumber rot resistant. The lumber is avowably weaker, but picks up some nice attributes: great rot resistance, tends to shed water due to the closed cell walls, and is much more stable than untreated wood of any sort. (Does not move much with wide humidity changes)
Here's an honest quick summary:
https://robcosman.com/pages/newsletter-article-torrefied-wood
For more, google "Torrefied wood". But take some of the simple reports with a grain of salt. The wood is slightly weaker, and probably no stiffer; but it gains a lot of attributes useful to wood cues: It tends to be extremely stable. For LD shafts, the reduction in density should be a plus as well.
smt