This user has no status.
This user has no status.
I dont think the metal ball fits inside a sponge poreIt depends on the head size togethether with the rubbers pore size. It is bound to be in exact with a small head. This tool sounds useless to me. You need one with a big head that can not sink into the pores.
Cheers
L-zr
I would assume like a micrometerscrew, when you put the gadget on a hard surface, like a plate glass, and turne the screw -knob then when the measuring tip reaches the surface it will click and the unit tip is calibrated at zero. Just a guess though.how does it work?
It doesn’t need to fit. Its a % thing. This is why they say a minimum thickness for measurement. You want an average of both pores and solid rubber under the point. If you get too many pores you measure soft. If you get too much solid rubber you measure hard.I dont think the metal ball fits inside a sponge pore
So just measure multiple points on the rubberIt doesn’t need to fit. Its a % thing. This is why they say a minimum thickness for measurement. You want an average of both pores and solid rubber under the point. If you get too many pores you measure soft. If you get too much solid rubber you measure hard.
The more pores the worse the measurement.
Cheers
L-zr
BB would disagree, I do too 😁Even better if you measure let’s say 3 layers (sponge only) on top of each other. -2mm is a little too thin not to be effected by compression
Sadly no, you are comparing a solid metal ball with a hollow plastic ball (different brands have different hardness, too).The whole hardness (of sponge) issue is that different scales are used shore a, asker that etc etc,
When testing at home many differing results occur, and generally, testing of both sponge and top sheet together are measured.
I think somewhere in the threads I read that a min thickness of 5 to 6 mm is required (ideally), so measuring a sponge (alone) at 2.1mm thick leaves a 'false' impression (see what I've done there??!!!)
A durometer needle is pointless (see what I've done there??!!!)
Even using a flat plate , although it may be better than a needle is not ideal.
Maybe a durometer with a TT ball shaped plate, that compresses into the sponge would be better, at least it would give a result based on what a TT ball does at impact (although a TT ball may deform slightly on impact).
Hardheaded engineer happens to be half right and half ignorant this time, as in 2011. As with the COR for softer/harder thinner/thicker rubbers, I've seen conflicting results on this.The ignorance of this forum and what passes for knowledge amazes me.
...
THICKER IS SOFTER.
I have criticized the Paddle Palace's data because 1.8mm 2.0mm and 2.2mm rubbers will have different hardness. The 2.2mm sponge will feel softer.
Disclaimer: the following numbers are obtained by using ShoreA scale on a regular durometer (the one which is not geared toward measuring rubbers and sponge) from our fellow forum member ivictor - he tests the rubber in several places (both sides, topsheet and sponge) and then averages it. Some numbers (like Palio Blitz or PME, for instance) are also averaged over more than one rubber. Whenever the thickness is not stated explicitly, it's MAX.
Brand Rubber Topsheet Sponge LKT Rapid Speed 2.2 30 29 LKT Rapid Speed 2.0 27 28 Palio Macro Era 2.0 26 28 Palio Macro Era 2.2 28 31
But now I finally got my own shore O durometer and can finally find out the truth.
And the truth is... nobody knows how hard rubbers are, numbers are random! 🤣🤣🤣If I firmly press with medium pressure, it reads 45. If I push hard, it reads about 47. and if I put all my strength into it, it hits 50.
It didn’t come with instructions?Can't do Arthur China yet because I haven't opened the seal. But eventually will get to it.
On another note, I actually don't know how to use the Durometer. How hard am I supposed to push on it? The harder I push, the harder it reads.
Well it is very difficult to get a precise measure with my little tool here. Because the reading varies wildly based on how hard I push. But between 2 rubbers, you can generally tell which one is harder. Because for example, if you try to get both to get 55d on the durometer, you may need to noticeably push harder on one rubber over the other.And the truth is... nobody knows how hard rubbers are, numbers are random! 🤣🤣🤣
Which one did you get and where did you get it from? In case I get bored...When I get back to Vietnam, I'm going to have to make a video showing the consistency of my durometer.
Feels like everyone else got a dud durometer that has crazy inconsistent readings but me.
This is getting effen ridiculous. Why do you think you have to press down at all ?Well it is very difficult to get a precise measure with my little tool here. Because the reading varies wildly based on how hard I push. But between 2 rubbers, you can generally tell which one is harder. Because for example, if you try to get both to get 55d on the durometer, you may need to noticeably push harder on one rubber over the other.
mine didn't, but some other forum guys said theirs came with instruction.It didn’t come with instructions?
This doesnt work. When i do that, the readings give absurdly low measrues like 35 or 40.This is getting effen ridiculous. Why do you think you have to press down at all ?
Just place the darn gadget on the sponge and gently press until the flat foot is in full contact with the rubber. Don't press the foot into the rubber
It give absurdly low measures because YOU BOUGHT TYPE Omine didn't, but some other forum guys said theirs came with instruction.
This doesnt work. When i do that, the readings give absurdly low measrues like 35 or 40.