Bm 930 Kulinga

[JTR357]

After literally 100's of pases on the sharpmaker on my 930,I've still yet to get it uber-sharp.It still shaves hair,but I want it sharper than that.I'm waiting on a pair of diamond rods,because the medium rods just aren't doing the trick.I absolutely love this knife.I just want it to have the sharpest edge possible.
I'm thinking about reprofiling down to a 15 degree edge,when I get the new rods.
I know a lot of you don't recommend the SM for reprofiling,but I simply don't have the funds to get an edgepro right now.

Has anyone reprofiled any S30V on the sharpmaker with the diamond rods?
If so,how did it work out for you?

off topic..I'd love to get it as sharp as my Chinook3(uber-sharp),although they're two completely different grinds,to my understanding.

Yes I have tried the sharpie technique,to no avail.

Thanks for all your helpful advice,as usual

 

[krazichinaman]

Which stones are you using to do 100's of passes? It sounds like you might be rounding the edge. I would suggest you do very very light passes on the Ultra fine stones(if you have them). Then finish it off with a strop. I can get my knives (Ritter mini grip, d4 etc) to whittle hair after the UF/strop combo. Remeber the key is VERY VERY light passes on the ultra fines.

I've reprofiled my 558 on my diamond rods for the SM, however it took a LONG time. Good luck on trying to reprofile.

 

[JTR357]

Which stones are you using to do 100's of passes? It sounds like you might be rounding the edge. I would suggest you do very very light passes on the Ultra fine stones(if you have them). Then finish it off with a strop. I can get my knives (Ritter mini grip, d4 etc) to whittle hair after the UF/strop combo. Remember the key is VERY VERY light passes on the ultra fines.

I've reprofiled my 558 on my diamond rods for the SM, however it took a LONG time. Good luck on trying to reprofile.

I've been using the medium (darker) tri-rods on the sharpmaker at the 40 degree angel setting(ie: 20degree),because the fine (white) rods don't seem to do anything.Don't get me wrong.The blade is sharp.It's just not as sharp as I would like it to be
Thanks for the advice:thumbup:I'll give your suggestion a try.

This S30V is some hard stuff!I'm really gonna hate having to sharpen my ZDP-189 blades,when the time comes.I may just send them in

 

[krazichinaman]

Are you cleaning the rods? After 100s of strokes they are going to get loaded and will need to be cleaned. Have you tried the sharpie trick to see if you are hitting the edge?

I would suggest following the steps on the DVD. 20 each side. So 20 on the triangles, 20 on the flats (On the brownish greyish stone). Then switch to the whites and repeat the process.

When you say "shaves hair" does it do it easily or do you have to try to get it to shave? After the brown stones you should beable to get a hair "popping" edge on the whites. On the ultra fine rods, you should get a hair whittleing edge.

BTW the white stones are more fine, so they will remove less metal. That is why "they dont seem like they are doing much."

Here is what you should be able to do.



Clay3

Delica 4 wave in foliage green

Bm 558 "wave"

Hk 14210

All four knives I got around to testing.
14210 (154 CM)
558 (S30V)
Clay3 (VG-10)
Delica4 wave (VG-10)

My process is Ultra Fine on SM 30/40 and finish off on a strop either loaded with CrO or 1 micron Diamond Spray.

 

[JTR357]

Are you cleaning the rods?[/B] After 100s of strokes they are going to get loaded and will need to be cleaned. Have you tried the sharpie trick to see if you are hitting the edge?

I would suggest following the steps on the DVD. 20 each side. So 20 on the triangles, 20 on the flats (On the brownish greyish stone). Then switch to the whites and repeat the process.

When you say "shaves hair" does it do it easily or do you have to try to get it to shave? After the brown stones you should be able to get a hair "popping" edge on the whites. On the ultra fine rods, you should get a hair whittling edge.

BTW the white stones are more fine, so they will remove less metal. That is why "they don't seem like they are doing much."

Here is what you should be able to do.



Clay3

Delica 4 wave in foliage green

Bm 558 "wave"

Hk 14210

All four knives I got around to testing.
14210 (154 CM)
558 (S30V)
Clay3 (VG-10)
Delica4 wave (VG-10)

My process is Ultra Fine on SM 30/40 and finish off on a strop either loaded with CrO or 1 micron Diamond Spray.

Chinese man,
1.Yes,I keep them very clean.I clean them after about 30-40 strokes
2.When I say shaving sharp,I do mean I have to try a bit.It's nothing compared to most of the spydercos,I get out of the box,like the Chinook III or the jess horn for instance.
3.Ive tried the sharpie technique & it shows to be rubbing off of the shoulder of the bevel.I'm thinking the 930 isn't exactly a 20 degree angle,which is why I'd like to re-profile it down to a 15 degree angle with the diamond stones.

I'd also like to add this is the first S30V blade I've tried to sharpen.I'm mostly used to sharpening 154Cm,440C & AUS-8(which BTW,I can get to hair splitting sharp)

What do you think about the Gatco's diamond sharpening system for re-profiling,or the lansky?

Thanks for all your help:thumbup:

Much obliged
John

 

[krazichinaman]

As others have mentioned in other threads, just take some wet-dry sand paper and attach it to the flat side of the rods. Then you have "rough stones" and will be sharpening on the sandpaper.

If you are hitting the shoulders, then you are not sharpening, but reprofiling. IF this is the case, no matter how much you sharpen at the 40 setting you will not be hitting the edge. Take the rods and place it in the 30 and go at it for a while. Re-apply the sharpie after say 100 strokes (assuming you only have the "brown/grey" stones and see if you are still hitting the shoulders. If you are not, then switch back over to the 40 setting and go through the 20 angles 20 flats. This should ensure you get the best edge.

Don't waste your money on other systems and just stick it out with what you have. :thumbup:

 

[JTR357]

:thumbup:Thanks for the sound advice buddy,although I already have the diamond rods on the way.I'm gonna try your sandpaper technique.Any idea of what size grit to get?ie: course,med,fine,extra fine?

You've been a great help Thanks again