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I'm thinking of the Norton combo mostly and I'm wondering which grit each of you prefer to use to lap your stone and why. I'd also like to hear what type of material you're using, lapping stone (what grit is that), Wet/dry paper, another stone etc.
X
I lap my Norton 4/8K with my Norton 220/1K.
Just another data point,
Ed
I do wet/dry on marble.
Grit is whatever happens to be available - 1000 is the highest I have used, but usually lower.
This *may* be a bit off-topic but I thought it doesn't matter if you use 200 or 1000 that much because once the stone is flat what matters most=cutting particles in the slurry, which aren't affected by the paper grit. True or false?
Cheers
Ivo
Ivo - that's probably true for Coticules, Eschers and the other natural hones that use a slurry....but for Nortons, it's my understanding that you don't build a slurry on them, and the stone does the cutting, in which case, the finish of the stone becomes more important.
I lap my Norton 4K/8K with a Norton lapping stone.
-whatever
-Lou
I use my Norton 1K for lapping my 4/8K, and I love it. To lap the 1K I use 320-grit sandpaper. The 1K leaves a nice, smooth finish on the combo, and I have to resist the temptation to lap constantly. :)
I agree that the lapping grit doesn't change the stone's grit size. But I think the smoothness of the finish changes the way the razor travels across the hone, and could potentially affect the outcome. A rougher hone has a different feel than a smoother one, which tends to have more suction. I think either would work just fine; it depends on your preference and touch.
Josh
I lap everything on a 2" granite surface plate with 600 wet/dry paper.
The Norton lapping stone leaves too coarse a surface on the 8K hone for my taste.
800 wet/dry paper on glass - I've tried 1000 too, but I prefer the feel left on the Norton from the 800.
James.
Hey Lou,Quote:
Originally Posted by scarface
I do build a slurry on the Norton.
Am I the only one who does this? - Don't know
For the record, some of my best results on the Norton came when I used shaving cream to build slurry (gradually thinned with water). I have tried it with Proraso and KMF creams, and maybe LT Shave Lotion. Most times I just make sure there's lots of water - just because using the cream is way messy: hone a bit, wipe, test, hone again, wipe again, test, hone again, wipe... whatever :roflmao
Cheers
Ivo
I like the feel of my hones after a few passes with the DMT course 325 grit. They feel like smooth velvet which makes it extremely easy to maintain the smooth, consistent, light stroke necessary to achieving a great edge.
I use shapton lapping plate with their medium grit to remove material and the extra fine to polish the stone up. really you can use many things. Levegated alumina in a variety of grades can be used and if you want to really polish a hone to a mirror finish try using cerium oxide as a final polish.
I really like to use 800 Gator grit for the rough side of my combination hone. The stuff cuts pretty aggressively but it's scratch pattern is finer than what you'd expect. I also really like using this stuff for my finishes on woodworking projects. I don't think I've ever used a DMT hone. Would you guys recommend getting about a 1000 grit or so? Is it really useful for lapping and sharpening knives?
I've thought about that but never tried it . What do you use for a rubbing stone to raise the slurry with?Quote:
Originally Posted by izlat
I do not use a slurry with the Norton. I never tried it because I figure anything I put on the stone (except water) will leave a "residue" that clogs the pores of the stone... and that will reduce the aggressive cutting action typical of Nortons. I'd think the waxes and fats in soaps would soak into the stone much like an oil and really clog things up. :shrug:Quote:
Originally Posted by izlat
Boy, that's interesting, Ivo....that's the first I've heard of using anything other than water on a Norton...I know that Norton makes a Prep stone, but I haven't found any recommendations on how to use it. It's white, and looks similar to the material on the 4K side of the 4K/8K.Quote:
Originally Posted by izlat
shaving cream.....hmmmmm....any problems with clogging or residue?
-whatever
-Lou
I use pumice stone to clean my Norton 4/8K combo stone... Lynn mentioned this some time ago, and read it on the classicshaving's website, so it stuck.
It is really fast and easy, just rub the stone under some running water, and that's it...
Nenad
Sorry I missed the questions:
My Norton did not seem very aggressive from the moment I got it. Others have thought the same about theirs.
Clogging: I cleaned the hone religiously, and didn't notice much change in aggressiveness from what it was.
Building the slurry - pressure with a blade that needs some major work.
Disclaimer: I now realize that what I shared may, if you try it, deteriorate your hone - so either assume the risk or don't do it!
I only spoke about my results, which may or may not be representative.
I would say that even just water also creates slurry from steel particles and grit particles, which can clog the hone if not cleaned well. That's the major characteristic of man-made hones, afaik.
Cheers
Ivo
When I run a blade on my Norton 4K without tape, I see that is still cuts quite a bit, so I don't think I have lost anything. On the other hand, it may be that the cream promotes hone disintegration. I also kept my hone in a bucket for extended times, but it seems this is also not advisable because it can have a negative effect.
It dawned on my last night that I haven't been getting the same results with my Norton that I used to... I'm wondering if lapping with my 1K waterstone is having a negative effect. I'm going to try lapping with some 400 or 600 grit sandpaper and report back. Maybe I'll try scrubbing it first in case I left some 1K slurry on it...
Josh
I "refresh" and "clean" with the Norton 1K and lap with wet/dry sandpaper. I start with 600 grit (because I have so much of it) and finish with 1000 grit. Then it goes under running water of course for a final rubbing/cleaning with a nylon scrub pad.
Just my way,