Fri Mar 29, 2013 9:58 am
I just got a combination waterstone (1k/4k) and I just went by the labels at first. Started with the 1k on my crappy knives then went to the 4k. Later I noticed that the 4k seems a lot more porous and a lot less smooth than the 1k. I was under the impression that it should be the opposite. I feel really stupid posting this.... but I thought the 1k was supposed to be a lot rougher than the 4k. yes/no?
Also I did it free hand because most people don't seem to recommend sharpening guides... but when I drew out a 15deg angle and a 20 deg angle I couldn't really even see much of a difference with my eyes. This is discouraging to me because that means if I can't see a difference, I most certainly am not holding a precise angle to my knife. blah.
Fri Mar 29, 2013 10:05 am
a pic might help.
and you might have the grits reversed. =D
Fri Mar 29, 2013 2:13 pm
Yeah, a picture would be helpful. But, in the interim....
The 4k should feel a lot smoother. Porous I'm not sure, but it should definitely feel smoother. The sound when grinding on a 1k should sound a lot harsher than when on a 4k as well.
So, you're correct.
The angle thing....yeah, that's tough. Over the years, I've learned fairly well what the angle are by looking, but I've been sharpening for a few years now. At the end of the day, one thing I always try to remember....."Does the knife cut well?". If the answer is yes, what does it matter? If it doesn't, maybe you should go thinner/lower angle until it cuts good. If it doesn't cut good until you have an edge that fails easily....that might not be a good knife for you.
As to holding a consistent angle, that gets easier too. You learn to feel the bevel on the stone....you can tell when you wobble. You can also hear it a lot of times too.....the grinding sounds different.
Sun Mar 31, 2013 8:52 am
I have a 4k/8k norton combo stone and until i lapped the 8k, it felt coarser than my 1k. Almost had a rubbery/gritty feeling like it was coated. After lapping/flattening it feels like an 8k
Sun Mar 31, 2013 3:13 pm
The light colored side is "usually" the higher grit on a combination stone.
Sun Mar 31, 2013 6:25 pm
try to lap it like sharkbite says with a flattening stone or a diamond plate.
Sun Mar 31, 2013 11:47 pm
Yes, my norton's 4k is white, the 8k is yellow. Lapping it made all the difference in the world.
Tue Apr 02, 2013 4:17 pm
Interesting to see this type of problem, I doubt anyone's ever said this about Shaptons...
Yes, just like the previous have stated, lap those stones. You should notice the 1k will cut faster and the 4k get smoother.
Wed Apr 03, 2013 1:19 am
I'm sure you're right Shaun. I know I went 'cheap' combo because I figured I'd end up trashing the stone learning how to sharpen. So far, so good....I've only gouged the 8k badly once
With my current 'novice' skills, I need a green brick so if I mess it up, there's plenty left to flatten
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