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by _centurio_
Wed Nov 05, 2014 10:21 am
Forum: Spyderco General Discussion
Topic: You CAN grind your knife too thinly
Replies: 12
Views: 3354

Re: You CAN grind your knife too thinly

@ Steel Drake:

0.010" 1mm above the edge is exactly what my damaged knife measures. So I think your edge line will flex when you run it over your fingernail?
by _centurio_
Tue Nov 04, 2014 2:37 pm
Forum: Spyderco General Discussion
Topic: You CAN grind your knife too thinly
Replies: 12
Views: 3354

Re: You CAN grind your knife too thinly

Thanks for the information. I just wanted to try out how this thin knife performs. It gives you a lot of feeling for edge angles/geometry in terms of different applications. I did another test with a Wetterlings axe. I sharpened it at ~10dps. It deformed heavily when I chopped wood with it (torque p...
by _centurio_
Tue Nov 04, 2014 11:55 am
Forum: Spyderco General Discussion
Topic: You CAN grind your knife too thinly
Replies: 12
Views: 3354

You CAN grind your knife too thinly

Hey guys, I just reground a pocket knife (Otter brand from Germany, carbon steel) for fun. It is ~7 thousands of an inch thick behind the very edge which flexes when you cross it over your fingernail. I reground the whole primary bevel right to the apex and polished the whole blade. Afterwards I put...
by _centurio_
Mon Nov 03, 2014 11:39 am
Forum: Spyderco General Discussion
Topic: Edge retention as influenced by apex finishing grit
Replies: 72
Views: 21792

Re: Edge retention as influenced by apex finishing grit

Great great work! Very nice data. It would be interesting to see how a higher alloyed steel like Vg-10 behaves.
by _centurio_
Fri Oct 31, 2014 4:21 pm
Forum: Spyderco General Discussion
Topic: Just steels...
Replies: 204
Views: 26375

Re: Just steels...

Even if it might be a one in the batch failed knife, i'll never try my luck again with a AUS8 blade
Try a Cold Steel Voyager. That stuff you cut with the Klein knife won't dull the Voyager.

BTT: I also would love to see some carbon steels and steels like AEBL ;)
by _centurio_
Sat Oct 25, 2014 2:22 pm
Forum: Spyderco General Discussion
Topic: Manix 2 XL - Ball Lock Too Stiff - Hints?
Replies: 44
Views: 15326

Re: Manix 2 XL - Ball Lock Too Stiff - Hints?

Let it break in and maybe lube it with ball bearing fat.

br oliver
by _centurio_
Fri Sep 05, 2014 3:54 pm
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

Yes, the Shapton 220 grit also gets muddy very fast.

The Sigma Select Series is meant to grind HSS and other very high amount carbide steels as far as I know, so these stones should not be too hard, but I have no experience with the Sigmas.
by _centurio_
Fri Sep 05, 2014 10:54 am
Forum: Off-Topic
Topic: Imanishi Bester (Nubatama) 220 grit vs. Atoma 140 grit
Replies: 5
Views: 3024

Re: Imanishi Bester (Nubatama) 220 grit vs. Atoma 140 grit

Thanks for the answeres. I do quite a lot of sharpening, mostly grinding a new secondary grind on very dull/abused knives from other people ;) I will try the sandpaper method first, thanks for the idea.

BR Oliver
by _centurio_
Wed Sep 03, 2014 12:57 pm
Forum: Off-Topic
Topic: Imanishi Bester (Nubatama) 220 grit vs. Atoma 140 grit
Replies: 5
Views: 3024

Imanishi Bester (Nubatama) 220 grit vs. Atoma 140 grit

Hey guys, I am searching for a new stone which will be used to rebevel very dull/damaged knives. Mostly Stainless steels such as Vg-10, 420, S30V and so on. I have used a Eze Lap 150 for those kind of jobs but it wore out rather quickly. I like diamond plates but they seem to last not very long (eve...
by _centurio_
Tue Sep 02, 2014 12:54 pm
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

Yes you could be right ;) Maybe the Imanishi Bester 220 and 400 would be a good combination. Hehe a lot of stones to choose from ;)
by _centurio_
Tue Sep 02, 2014 12:45 pm
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

OK I'm looking forward to the results. Currently I am searching for a new coarse stone and I can't decide between the Shapton 120, Sigma Select 240/400 and Naniwa Super 220/400. I need a stone which abrades a lot of Steel (all kind of) and leaves a stable finish with which I can put a microbevel aft...
by _centurio_
Tue Sep 02, 2014 8:35 am
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

I have to try your way of doing it. I layed the knife flat on the primary grind ;)

How compares the Sigma Select 240 grit to the Shapton 220 grit in terms of wear and speed?

BR Oliver
by _centurio_
Sun Aug 31, 2014 2:34 pm
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

Oh nice knife! Edge bevel doesn't look too wide, but with a 400 grit Naniwa it will take quite some time won't it ;)?

Do you think the stone will load up due to the fact of grinding 10V?

BR Oliver
by _centurio_
Sat Aug 30, 2014 6:07 pm
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

Yes it took me a lot of time but I had to remove a lot of material. The Edge bevel was ~ 2mm wide. I guess your regrind with 10V will also take some time, how wide is the edge bevel (or how thick is the blade behind the edge?). Are you going to do the regrind with the 220grit Shapton stone?

BR Oliver
by _centurio_
Fri Aug 29, 2014 11:31 am
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

Puh for a before picture i have to search. Put a lot of force on the blade, approx. 15-20 pounds. Frequency was approx. 2-3 per sec. For 30 seconds, then 30 sec. Break. But it wasn't continously work, i broke up every 10 mins. Or so for a couple minutes
by _centurio_
Fri Aug 29, 2014 9:30 am
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

Not to forget Cliff, the Shapton worked really well. I lapped it after ca. 2 hours of grinding.

(Sorry for double post but I don't know how to edit due to the new forums design/software)
by _centurio_
Fri Aug 29, 2014 8:47 am
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

Re: Blade Regrind with Tormek T7?

Hey, so I reground a Krush by Jürgen Schanz. Niolox (SB1) at 61 HRC. Edge bevel was ca. 2mm wide. Now it is near to zero. Did the regrind with a Shapton 220 grit (moss green) and finished with 120 grit sandpaper. Looks relatively good (the pics are quite bad and on them the grind looks horrible :P)....
by _centurio_
Wed Aug 27, 2014 9:11 am
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

WOW, ok I will try that with my Shapton 220 grit and give an update. But I think a good belt grinder will be the way to go in the future.

BR Oliver
by _centurio_
Wed Aug 27, 2014 8:10 am
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

I want to thin out the blade stock. Not only the secondary grind (edge).
by _centurio_
Tue Aug 26, 2014 12:23 pm
Forum: Off-Topic
Topic: Blade Regrind with Tormek T7?
Replies: 27
Views: 9344

No I haven't tried the Sigma stones. But I guess it will take extremely long time to regrind f.e. a Manix 2 in Cruwear to zero by hand. Maybe I buy the coarsest Sigma stone and see how it works. Some time ago I wanted to regrind a ZDP-189 Stretch with a coarse diamond plate; just impossible. This wo...

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