View Full Version : mirror finish


T. Hendrickson
05-19-2009, 09:55 AM
Hello, I am using steve's method for finishing with a cork belt and green rouge. Here's what I've done:

finish grinding with 120 grit hogger

broke in 400 grit cork belt, loaded with compound and polished away 120 grit marks

broke in 600 g cork belt, loaded with compound, and polished away 400 g marks.

then buffed on sewn muslin with green compound. Trouble is, I can't buff out all the grind marks; they're too deep. Do I need to perhaps make the 600 grit belt more "worn-out"? I held a scrap of steel to it for several minutes. Or is there another problem?

Frank Niro
05-19-2009, 12:03 PM
More grit sizes needed befor going to the cork belts. Frank

Bear_Blade
05-19-2009, 01:29 PM
I usually grind to at least a 400 grit (will reduce amount of hand work later) then 600, 800, and 1200 by hand then buff with Zam compound on cork belt, and finish with a sewn muslin wheel. It's a bit more manual work, but there are no scratches whatsoever. I find I have more control hand finishing, and have a lot less of those anoying "OOPS#$%@" moments.

Steve
05-19-2009, 02:50 PM
Grind the blade with a 50x or 60x belt.
Clean up those scratches with a new 400x ALOX, or A45 Trizact belt. (You may have to go back over the blade with this same used 400x belt after you have done this, as a brand new 400x belt leaves some pretty good scratches itself. Once the belt has been used on a knife or two, it leaves a much finer 400x finish that is more ready for the 400x Cork.)
Polish with broken in 400x Cork belt. Polish with a 600x Cork belt.
Buff with white RCH SS300 compound.

Works for me.

GHNorfleet
05-19-2009, 06:44 PM
Great Advice!!!

AcridSaint
05-19-2009, 10:31 PM
Hi Steve - thank you for mentioning the worn out 400 part, this is very useful advice. I've been using trizact belts more and more and I really like the finer finish they tend to leave along with the fact that all of the belts are thicker than the 60/80 grit ceramic belts I do my initial grinds with.

Steve
05-20-2009, 12:29 AM
They work very well for me. It's a bit more difficult to get the edges to roll over, or contour, but they work in after a while. It's important to go back over a "new belt finish" once the belt is worn in a little bit.

T. Hendrickson
05-20-2009, 09:01 AM
Grind the blade with a 50x or 60x belt.
Clean up those scratches with a new 400x ALOX, or A45 Trizact belt. (You may have to go back over the blade with this same used 400x belt after you have done this, as a brand new 400x belt leaves some pretty good scratches itself. Once the belt has been used on a knife or two, it leaves a much finer 400x finish that is more ready for the 400x Cork.)
Polish with broken in 400x Cork belt. Polish with a 600x Cork belt.
Buff with white RCH SS300 compound.

Works for me.


Thanks, Steve, I appreciate it.

I've got norax belts, will they serve the same purpose?I tried this last night and ended up with the same result as before, but I think that it is because the new 65 micron belt left fairly big scratches. I'll try it once more now that the belt is worn out some.

Thanks again.

Steve
05-20-2009, 10:56 AM
I've not used Norax, so can't comment. I'd think that they would be fine. I think that if you will go over the blade again with the slightly worn belt that you will see a difference. Try holding the blade on a slight angle so that the new scratches will cross the old and thus make the old scratches show up better.