question about squaking sound on a sun tiger 800# stone

[r0bz]

i was sharpening a knife on the sun tiger 800# stone it was soaked 1 hour and 40 minutes prior to sharpening
i was adding water throughout all the sharpening but suddenly at a specific point at the knife it it made a squaking sound kind of like car brakes
and if i continue to sharpen it makes this awful noise

what causes that ?

 

[r0bz]

is 1 hour and 40 minutes not enough soaking time ?

 

[Benuser]

Are you sure it has to do with the stone? Sounds to me as if a burr came off. Rinse the stone carefully to get rid of those burr remnants.

 

[r0bz]

Are you sure it has to do with the stone? Sounds to me as if a burr came off. Rinse the stone carefully to get rid of those burr remnants.

that maybe the case
i am not sure its the stone thats why i am asking?
the only thing i thought about myself is that the stone may be the problem (maybe i hadnt soaked is enogh)
but 1 hour and 40 minutes should be enough soaking time right ?

 

[r0bz]

Are you sure it has to do with the stone? Sounds to me as if a burr came off. Rinse the stone carefully to get rid of those burr remnants.

stone mud is what sharpens so aren't I supposed to not wash the stone in order to have the mud?

 

[Benuser]

Burr remnants may create an horrible sound and feeling.
See how the stone behaves once the steel particles have been removed. Rinse the knife as well.

 

[r0bz]

I'd indeed think so, but see how it behaves once the steel particles have been removed. Rinse the knife as well.

i can not know this time because i have finished the sharpening for today but next time i will see....
how long do you recommend that i soak the stone in water next time if i use it to sharpen multiple knives ... ?
stone mud is what sharpens so aren't I supposed to not wash the stone in order to have the mud?
also why after 1 hour and 40 minutes still small bubbles coming out of the stone right before i took it out of the water?

 

[Benuser]

I don't know the stone or the knife. But a sudden change as you've been describing with a stone that has been kept wet makes me rather think about a fat burr suddenly coming off, which is quite rare. Sure, the mudd helps a stone doing its work, but swarf, mudd plus steel particles, should anyway get removed as at some stage a clean stone results in a cleaner, more even edge. A big burr falling off at once is likely to cause a lot of damage and undo your work.

 

[r0bz]

I don't know the stone or the knife. But a sudden change as you've been describing with a stone that has been kept wet makes me rather think about a fat burr suddenly coming off, which is quite rare. Sure, the mudd helps a stone doing its work, but swarf, mudd plus steel particles, should anyway get removed as at some stage a clean stone results in a cleaner, more even edge. A big burr falling off at once is likely to cause a lot of damage and undo your work.

thanks...
can you give me an advice to how much time to soak stone ?

 

[Benuser]

I can't remember having soaked a stone longer than twenty minutes.
If it is a brand new stone, you may want to dress it: in practice, it's the same as flattening and chamfering its edges. Some stones come out of the box with an inert outer layer.

 

[r0bz]

I can't remember having soaked a stone longer than twenty minutes.
If it is a brand new stone, you may want to dress it: in practice, it's the same as flattening and chamfering its edges. Some stones come out of the box with an inert outer layer.

does it matter if i use the stone with 1 knife or sharpen 5 knives for 2 hours the amount of time i need to soak it ?
do i need to soak the stone in water the same time even though i use it longer

 

[r0bz]

I can't remember having soaked a stone longer than twenty minutes.
If it is a brand new stone, you may want to dress it: in practice, it's the same as flattening and chamfering its edges. Some stones come out of the box with an inert outer layer.

also before you took out the stones after 20 minutes
was there still little bubbles going out not like at the start where its bubbling like crazy... ?

 

[Benuser]

does it matter if i use the stone with 1 knife or sharpen 5 knives for 2 hours the amount of time i need to soak it ?
do i need to soak the stone in water the same time even though i use it longer

No. If it is soaked, it is saturated with water. During the sharpening you add water, so the saturation is being maintained.
Hard to imagine any bubbles after 10 minutes. In fact, when there are no more bubbles, there is no longer any air in it, and the stone is saturated.

 

[r0bz]

No. If it is soaked, it is saturated with water. During the sharpening you add water, so the saturation is being maintained.
Hard to imagine any bubbles after 10 minutes. In fact, when there are no more bubbles, there is no longer any air in it, and the stone is saturated.

for me extra small bubbles kept going out of it after one hour and 40 minutes of soaking in water why is that dop you thjink ??

 

[Benuser]

I don't know the stone.

 

[Delat]

Agree it’s likely a large burr was coming off. Another possibility is the stone is dished and the knife was scraping along the outer edge of the stone. I’ve noticed this when thinning; I get a godawful sound (and feeling) when the blade is scraping only along a small portion of the edge rather than across the full width of the stone. It’s easy to see if you’re keeping the stone relatively clean. Flatting gets me back to work pretty quickly when that happens.

BTW, go ahead and soak the stone longer if you suspect it needs to be soaked longer; trial and error is the best way to learn.

 

[M1k3]

I have a knife that squeaks on most stones. Seems to happen when the stone touches the wrought iron cladding.

 

[mpier]

i was sharpening a knife on the sun tiger 800# stone it was soaked 1 hour and 40 minutes prior to sharpening
i was adding water throughout all the sharpening but suddenly at a specific point at the knife it it made a squaking sound kind of like car brakes
and if i continue to sharpen it makes this awful noise

what causes that ?

Can I ask , does this noise happen at the heal or more towards the tip of the blade?

 

[r0bz]

Can I ask , does this noise happen at the heal or more towards the tip of the blade?

more towards the tip

 

[Benuser]

more towards the tip
View attachment 199247

The belly is the section where consistency is the hardest to observe and fat burrs are the most likely to appear.

 

[r0bz]

The belly is the section where consistency is the hardest to observe and fat burrs are the most likely to appear.

so that means that awful sound is because a burr got knocked like you said ?

I don't know the stone or the knife. But a sudden change as you've been describing with a stone that has been kept wet makes me rather think about a fat burr suddenly coming off, which is quite rare. Sure, the mudd helps a stone doing its work, but swarf, mudd plus steel particles, should anyway get removed as at some stage a clean stone results in a cleaner, more even edge. A big burr falling off at once is likely to cause a lot of damage and undo your work.

 

[mpier]

more towards the tip
View attachment 199247

So I’m not going to it say it’s not a burr, but when I use to sharpen a lot of stainless steel blades it use to happen once in a while it would drive my wife nuts and always from the curve to the tip. For me I found a simple adjustment usually up no the angle because I was just ever so slightly dropping my angle as I left the heal so by the time I got to the curve the edge wasn’t making full contact with the stone. So there is a couple of ways to test, feel for a burr when you flip it and remove and then see if it happens if it does adjust your angle slightly, try upwards first and see if it stops. Whatever works I don’t believe this has anything to do with the amount of time you soaked your stone.

 

[r0bz]

So I’m not going to it say it’s not a burr, but when I use to sharpen a lot of stainless steel blades it use to happen once in a while it would drive my wife nuts and always from the curve to the tip. For me I found a simple adjustment usually up no the angle because I was just ever so slightly dropping my angle as I left the heal so by the time I got to the curve the edge wasn’t making full contact with the stone. So there is a couple of ways to test, feel for a burr when you flip it and remove and then see if it happens if it does adjust your angle slightly, try upwards first and see if it stops. Whatever works I don’t believe this has anything to do with the amount of time you soaked your stone.

i start at the tip

 

[mpier]

So does the noise start after you make a burr on one side? If you start at the tip how are you finding your angle? Are you running Parallel with the stone or on the 45 degree angle. It’s been a long time since it’s happened to me so it actually may be that my angle was to high I can’t remember. Regardless I’ve changed my Technique over the years several times.

 

[r0bz]

So does the noise start after you make a burr on one side?

yep after estabilish burr on 1 side

If you start at the tip how are you finding your angle?

i feel for it using the method of the korin sharpener

Are you running Parallel with the stone or on the 45 degree angle.

at the strong side i use the 45 degrees but when i flip the knife i have to change from 45 to 90 ....\
you can see it here i added it so you can see a visual on what i mean

 

[mpier]

Ya has others have said could be a burr, and it could also be your angle is just a tad to high when you flip. For example if you take your knife and hold it straight up and down on a plate, rub it back and forth gently you will hear the squeak, now start to lay it over the noise will go away. Like I said try removing the burr before you start the second side, it won’t hurt anything, if the noise comes back adjust your angle slightly.

 

[Se1ryu]

i can not know this time because i have finished the sharpening for today but next time i will see....
how long do you recommend that i soak the stone in water next time if i use it to sharpen multiple knives ... ?
stone mud is what sharpens so aren't I supposed to not wash the stone in order to have the mud?
also why after 1 hour and 40 minutes still small bubbles coming out of the stone right before i took it out of the water?

Just drop some water on the stone to se if the whetstone still needs water / soaking. If the stone still absorbing water that mean you need to soak little bit more or just ad water while sharpening

 

[r0bz]

Just drop some water on the stone to se if the whetstone still needs water / soaking. If the stone still absorbing water that mean you need to soak little bit more or just ad water while sharpening

when i was sharpening i drop water on the stone and it doesn't soak it
but why is that that after 1 hour and 40 minutes still, small bubbles go out of stone not like at the start where it's going crazy but still?

 

[Se1ryu]

when i was sharpening i drop water on the stone and it doesn't soak it
but why is that that after 1 hour and 40 minutes still, small bubbles go out of stone not like at the start where it's going crazy but still?

Don't worry too much about bubbles. If your stone doesn't absorb anymore water that means the whetstone is ready for sharpening. Maybe you can try to record short video so people can see what's going wrong.

Add: maybe you can try soak it for 3-4 hours or even a day and see how it feels

 

[r0bz]

Don't worry too much about bubbles. If your stone doesn't absorb anymore water that means the whetstone is ready for sharpening. Maybe you can try to record short video so people can see what's going wrong.

Add: maybe you can try soak it for 3-4 hours or even a day and see how it feels

as i do not have a vid of soaking whetstones and this shows it pretty acurrate
after the 1 hour and 40 minutes you can see the small bubbles coming out of the corners they continute to go out but less rapidly than at his video but the big bubbles do not ....