Thread: One edge is sharper than the other

Originally Posted by hoglahoo

The above diagrams show a pretty ridiculous case. It looks like someone is using 10 layers of tape on one side of the spine only.

Sorry about that I am still working on how to accurately show .9deg of offset in MS Paint.

Originally Posted by hoglahoo

Now, a dull razor is one that is rounded at the edge, is it not? If however, one bevel is not making hone contact all the way to the edge, that side of the edge is going to be unpolished and remain rounded. The other side may sharpen just fine, but the rounding on the dull side will prevent any angle of attack from being capable of cutting hair with any ease. If I cut an egg in half, you'll see a sharp divide if you look from the side which was cut, but you'll see a gradual roundedness from the other side of the egg, as though it was never cut at all.

What about pasted strops which produce two curved, intersecting surfaces?
And calc 101 should explain that at the microscopic level curves are basically flat. HOW curved will determine the angle of intersection. Shall I paint some more?

And for the last time, because I wasn't even arguing with you guys from the beginning, I EXPRESSELY didn't want to go into the math:

Originally Posted by khaos

Since it is mathematically impossible for one side to be sharp and the other not (not gonna go into this though) what I *think* may have happened is you honed one side more than the other, and so the angle of attack is different.

+1 on hi_bud_gl go back reset the bevel and see what happens.

I long ago dismissed it as theory and I have been in agreement with everyone all along- the bevel needs to be reset correctly.

Originally Posted by khaos

at the microscopic level curves are basically flat.

Well sure they are. But have you ever tried to shave with a 90 degree-angled bevel when only one side is polished?

angle of attack won't help if one side is as significantly rounded as a dull razor. In fact if you want to make a simplistic theoretical microscopic analysis, won't the resulting angle at the edge be somewhere around 7.5 degrees + 90 degrees? because that rounded side will look like a tangent to the longitudinal cross-section midline of the razor. I'm not so sure there is a good way to cut whiskers with a 98 degree bevel

I'd point you to the threads where bevel angles greater than 20 degrees are mocked, spat on, and beaten to death for their ineffectivenesses, but I happen to know you've seen those too

It seems my observations about the kasumi not being good enough were a little premature. After talking with a couple of people on the site i think that the problem might have been me. I was putting too much pressure on the razor and using a finger on the spine to steady.

I have now taken my finger off and the only pressure applied is the weight of the razor. It is now very sharp on both sides. Looking at getting some CrO and doing some stropping.

Did i see somewhere that instead of a cloth strop you can use nylon webbing?

I'm glad you're getting somewhere with the razor, and I apologize for helping take your thread off course

finding the right stroke for each side of the razor will solve lots of problems

I figure the more debate and opinions i see the more i learn, so for me it hasnt gone off course