sidewalk chalk as nagura

[global_dev]

my daughters have all sorts of sidewalk chalk that varies considerably from schoolhouse chalk. one piece from a set of sports them chalk is a basketball (only orange on the surface). when she wasn't looking i ganked it.

it isn't crumbly and it appears pretty smooth. sounds make similar to chu nagura.

i am sure i am not he first to give it a try, but anyone ever experiment with something similar? tell me what happened. thanks

 

[Gamma]

Someone once said that regular chalk is Gypsum and couldn't be used because it's too soft. Mohs 2.
Never tried it though.

 

[Seraphim]

I was going to ask this after seeing that "perfect koma" thread. I was wondering if regular chalk would work.

Seems like Gamma's answer is probably correct.

How about using Colgate toothpaste? It may have a bit more abrasiveness, and dilutes well in water.

Some guy on the forums used to use it on a strop and said it gave "buttery smooth edges".

 

[Gamma]

I used toothpaste once as a paste on a piece of balsa - didn't do much for me.

I think - but I am not sure - that old-skool barbers used chalk on linen... seem to remember reading that.

 

[global_dev]

I was thinking that i read that the nagura slurry acts as a lubricant, and so i slurried the chaulk and it was fine feeling, isnt talc used to polish on buffers? Once i give the chalk a go, I'll report back.

 

[Gamma]

I think Talc is Mohs 1 - not sure about using it on buffers.

 

[Seraphim]

Perhaps we should ponder where leather lies on the Mohs scale, and yet does "something" to the edge that we all like.

?

Just throwing that out there to kick around a bit.

 

[Gamma]

Would be Mohs 1 - easily scratched with a fingernail.

From CS -

Many modern Linen strops often come from the manufacturer pre-treated with a very fine chalk-based abrasive. These strops are generally quite stiff when new and do not require any break-in though their performance does improve with use. Over time the chalk abrasive may be worn away. It can be replaced with Linen Strop Paste, which is itself chalk-based and usually is either white or gray in color.

 

[rickboone1]

Perhaps we should ponder where leather lies on the Mohs scale, and yet does "something" to the edge that we all like.

?

Just throwing that out there to kick around a bit.

I've often wondered this. Especially with the various types of leathers.

I used toothpaste once as a paste on a piece of balsa - didn't do much for me.

I think - but I am not sure - that old-skool barbers used chalk on linen... seem to remember reading that.

Smelled minty fresh

 

[Kentos]

Just spray some .1 CBN on the sucker and call it a day

 

[oakeshott]

I once worked with a company that made the abrasive powder used in toothpaste. Running that ultra fine powder through their pipes would wear out inch thick elbow pipes of high carbon steel at the bend in three months. One of the guys there told me he used to swallow toothpaste but after working there for a few months, he quit doing it. This was 20 years ago. I don't know what they use now.

 

[SliceOfLife]

My skin is softer then steel, yet I can straighten out a paper clip* with my fingers. That's what leather does.


*Let's assume paper clips are steel, though I'm guessing they are more likely aluminum.

 

[Tierdaen]

*Let's assume paper clips are steel, though I'm guessing they are more likely aluminum.

Those companies that make magnetic paperclip dispensers must not have gotten the memo.

 

[Seraphim]

is it your skin, or the bone that lies beneath that is doing the actual bending of the paperclip?

 

[global_dev]

is it your skin, or the bone that lies beneath that is doing the actual bending of the paperclip?

i've seen dark evil magic do crazy things with paperclips

 

[Brooksie967]

Let us know