Sharpmaker - Profile ZT 0920

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90grains
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Sharpmaker - Profile ZT 0920

Postby 90grains » Mon Jan 13, 2020 12:28 am

I purchased the Sharpmaker to touch up a ZT 0920, which is CPM-20CV and though it worked I could never get an edge even close to as sharp as my new PM2. The 0920 has a slight recurve so I have used the edges of the rods

Looking closely it appears the 0920 has a 22 degree +/- at least quite a bit over 20 degrees and it needs to have the edge re-profiled to 20 degrees. I just ordered the diamond coarse rods to be able to take enough metal off to get the job done.

Any advice?

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Wartstein
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Re: Sharpmaker - Profile ZT 0920

Postby Wartstein » Mon Jan 13, 2020 5:18 pm

90grains wrote:
Mon Jan 13, 2020 12:28 am
I purchased the Sharpmaker to touch up a ZT 0920, which is CPM-20CV and though it worked I could never get an edge even close to as sharp as my new PM2. The 0920 has a slight recurve so I have used the edges of the rods

Looking closely it appears the 0920 has a 22 degree +/- at least quite a bit over 20 degrees and it needs to have the edge re-profiled to 20 degrees. I just ordered the diamond coarse rods to be able to take enough metal off to get the job done.

Any advice?


Apply less pressure on the diamond (or CBN) rods than you might think is necessary!! Very little pressure in fact.

For just reprofiling (before you hit the actual bevel) you obviously don't have to worry about forming of a burr and can work on one side of the blade for a longer time (even in circular, not only down or up and down motions) if you still manage to keep the angle.

Using a aharpie to check where you hit the edge is always a good idea.. /

Orhers will certainly know a lot more than me!
Top three going by pocket-time: Endura 4 in VG 10/Micarta-scales; Stretch 1 in VG 10; Endura 4 in HAP 40

prndltech
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Re: Sharpmaker - Profile ZT 0920

Postby prndltech » Mon Jan 13, 2020 5:31 pm

Yup. Paint the edge with a sharpie and go to town. You can work once side at a time. I’ve reprofiled s90v with the CBN rods. Use light pressure... in fact no pressure. Just enough to keep the blade from bouncing off the rods.
The planter, the farmer, the mechanic, and the laborer... form the great body of the people of the United States, they are the bone and sinew of the country men who love liberty and desire nothing but equal rights and equal laws. - Andrew Jackson

ABX2011
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Re: Sharpmaker - Profile ZT 0920

Postby ABX2011 » Mon Jan 13, 2020 5:40 pm

Also I would use the flats of the diamond rods rather than the points. The rods are so narrow that the flats should work just fine even on a recurve.

TkoK83Spy
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Re: Sharpmaker - Profile ZT 0920

Postby TkoK83Spy » Mon Jan 13, 2020 6:26 pm

Read my post here I just posted yesterday about my "new" 0470

viewtopic.php?f=5&t=66718&start=1840
Currently have 20 :spyder: 's in 14 different steels.

-Rick

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Albatross
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Re: Sharpmaker - Profile ZT 0920

Postby Albatross » Mon Jan 13, 2020 7:02 pm

The 0920 is a perfect candidate for the Sharpmaker. The recurve means you have less sharpening options for sure. Others have offered sound advice. Bench stones always remove more metal and faster, but in this case, it's not an option.

This just makes me think; I would love to see Sal or Eric design a knife for ZT. Emerson has had their collaborations with ZT, so why not Sal or Eric? It might just convert some hardcore ZT fans to Spyderco fans. A P4 flipper in K390, with titanium scales, would break the internet.

On second thought, the Para 3 in a TI flipper form, would break the internet. The P4 is just my own desire. :D
sal wrote:
Fri Nov 09, 2018 3:01 pm

...But in general, I'm all about high performance, Ergos, safety. That's why I've been accused of "deigning in the dark"...

sal

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kennethsime
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Re: Sharpmaker - Profile ZT 0920

Postby kennethsime » Tue Jan 14, 2020 10:11 am

Albatross wrote:
Mon Jan 13, 2020 7:02 pm
The 0920 is a perfect candidate for the Sharpmaker. The recurve means you have less sharpening options for sure. Others have offered sound advice. Bench stones always remove more metal and faster, but in this case, it's not an option.

This just makes me think; I would love to see Sal or Eric design a knife for ZT. Emerson has had their collaborations with ZT, so why not Sal or Eric? It might just convert some hardcore ZT fans to Spyderco fans. A P4 flipper in K390, with titanium scales, would break the internet.

On second thought, the Para 3 in a TI flipper form, would break the internet. The P4 is just my own desire. :D
Isn't that pretty much a Domino?
C90GRE Stretch 2 ZDP-189 British Racing Green
C28GRE2 Dragonfly 2 ZDP-189 British Racing Green
C12BK2W Matriarch 2 VG-10 Emerson Open
C81G2 Para Military 2 S30V
C81GPRGR2 Para Military 2 K390 Ranger Green
C223GPRGR Para 3 K390 Ranger Green
C90FPIV2 Stretch 2 Straight Spine, VG-10 Rit Dye'd Dark Apple Green
C223GP Para 3 S30V Green Canvas Micarta

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curlyhairedboy
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Re: Sharpmaker - Profile ZT 0920

Postby curlyhairedboy » Tue Jan 14, 2020 10:17 am

a ZT 0920 with a compression lock would be very, very nice. I've handled a 0920 that had been modded to add a spydiehole, and it's quite nice.
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soc_monki
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Re: Sharpmaker - Profile ZT 0920

Postby soc_monki » Tue Jan 14, 2020 10:32 am

I use my diamond rods all the time to reprofile blades. 8cr13mov, m390, 20cv...none of it stands a chance. Some take longer than others but stay consistent, take breaks if need be, and you'll be done before you know it. Just watch the pressure! You don't need a whole lot, and you can speed up the process by going down and up.
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Albatross
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Re: Sharpmaker - Profile ZT 0920

Postby Albatross » Tue Jan 14, 2020 10:32 am

kennethsime wrote:
Tue Jan 14, 2020 10:11 am
Albatross wrote:
Mon Jan 13, 2020 7:02 pm
The 0920 is a perfect candidate for the Sharpmaker. The recurve means you have less sharpening options for sure. Others have offered sound advice. Bench stones always remove more metal and faster, but in this case, it's not an option.

This just makes me think; I would love to see Sal or Eric design a knife for ZT. Emerson has had their collaborations with ZT, so why not Sal or Eric? It might just convert some hardcore ZT fans to Spyderco fans. A P4 flipper in K390, with titanium scales, would break the internet.

On second thought, the Para 3 in a TI flipper form, would break the internet. The P4 is just my own desire. :D
Isn't that pretty much a Domino?
There are similarities for sure, but aren't the blade and handle a bit different? Besides, a ZT/Spyderco collaboration, would most-likely be a completely new model, but a Para 3 flipper would sell a ton just because it's a Para 3.
sal wrote:
Fri Nov 09, 2018 3:01 pm

...But in general, I'm all about high performance, Ergos, safety. That's why I've been accused of "deigning in the dark"...

sal


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