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Knife Sharpening / Re: New angle jig KS-123
Last post by Dutchman - Today at 10:21:48 AM
Quote from: v6turbo on June 22, 2024, 10:42:22 PM...
I wonder if digital angle gauge can be used some how to ensure exact angels ?
What do you mean by "exact"? By using the KS-123, the angle "exactly" becomes the value you choose on the scale. You have to trust that scale, but that also applies to the values given by the digital angle gauge.
Knife Sharpening / Re: SVM-45 knife jig accident
Last post by Dav81 - Today at 09:58:37 AM

Thanks for the link, good thing we can learn from other people's mistakes so we don't have to make them all ourselves.  :)

I may of course have been inattentive for a split second, and I have also been stupid on several occasions before, so those factors might well have contributed in this case. However I also would like to understand which other factors to consider, so I can reduce the risk of this happening the next time around - as I like my fingers even more than I like sharp tools.  ;D

Found some threads on reverse sharpening / edge trailing, also some videos by Steve Bottorff, and that looks like a more "foolproof" way of working, as it removes the risk of grabbing. I am tempted to try that next time for knives and see how it works out.

That would be kind of chickening out instead of learning though. I am torn.

Some factors I have found from reading the forum post-accident;

  • Edge angle. Steep angled blades are more likely to grab, some mention this happening from 30 degrees and up.
  • Type of stone. Mostly referring to the japanese waterstone, which is softer than the rest, so easier to dig into with an edge.
  • Grindstone geometry. Rounding or beveling the edges with the grader, and making sure the stone is true and round is a good idea.

Feel free to add your own, anyone!


Quote from: RickKrung on Yesterday at 09:54:40 PMNever from grabbing, but from inattention and/or stupidity...

Tormek Bloopers anyone??? July 19, 2018, 05:09:17 PM

Knife Sharpening / Re: what's been your experienc...
Last post by tgbto - Today at 09:51:47 AM
Quote from: John Hancock Sr on June 20, 2024, 03:01:38 AMGiven this the JS should provide a more resilient edge. Having said that it depends on what you are using the edge for and how much extra work is involved. Yes, the SJ will give you a sharper more durable edge but whether that is what you want depends on what you are doing with the edge.

I thinks that's a very important part of what we're trying to do with a Tormek. For kitchen work where the blade works mostly in the direction perpendicular to the cut, I found that a polished edge that's initially "BESS-sharper" than one sharpened only on the SG will eventually feel dull faster.

If you're leaning on the geeky side of sharpening, this article along with this one on the scienceofsharp website are very interesting.

And I can't help but throw in this one as well that talks about burrs.

TLDR: The SJ will make for a very nice-looking bevel. But it will not really translate in better day-to-day performance.

Knife Sharpening / Re: How to achieve less than 1...
Last post by tgbto - Today at 09:32:18 AM
Quote from: Dutchman on June 22, 2024, 11:29:47 AM
Quote from: DT on June 21, 2024, 03:20:35 PM...
I'm 78 and not and not nearly as quick as I once was.
Yes, I know that, I'm 84 and experience it every day  ;)

As one of my favorite Star Wars characters once put it : "I may not be as young as I once was, but I'm older."
General Tormek Questions / Re: T-2000 repair
Last post by Ken S - Today at 03:58:08 AM
Good thought, John; however, I would check with support first.

Knife Sharpening / Re: what's been your experienc...
Last post by Ken S - Today at 03:53:00 AM

One possibiity is that any grinding or felt wheel that fits the T8 will also fit the T4. Just remove the water trough. Although the outer widths of the T4 and T8 wheels are 10mm different (40 and 50mm), with the wheel recesses, the width at the bore is almost identical. Thatminimal difference is easily picked up bythe EZYlock thread.

Knife Sharpening / Re: SVM-45 knife jig accident
Last post by Herman Trivilino - Today at 03:39:08 AM
I've had that happen a number of times. Fortunately, I never got hurt. My suggestion would be to wear a long leather apron and good shoes, but I doubt anyone (myself included) would be inclined to take that advice. Unfortunately, it takes a severe accident for people to become safety-minded.

Reminds me of my first teaching position. A year or two before my arrival a student was permanently blinded in the chemistry lab. She wasn't even a student in the class, but had just stopped by to wait for her friend, who was enrolled in the class and was just finishing up her lab activities when the accident happened. After that everyone was careful and safety-minded, and I carried that with me throughout my career at two other colleges.

Strangely enough, another professor at that same college had recently lost an eye while playing tennis.

I really do need to be more diligent about wearing my safety glasses when I'm in the shop or working around the house, or playing pickleball.
Quote from: troflog on May 25, 2024, 02:16:51 PMUse the separate blades and close method to debut

If you watch the Tormek video on scissors they recommend that you draw the edge across the end grain of a small piece of wood to deburr. I think that the "close" method may tear the edge whereas wood may be less aggressive and leave a better edge.
General Tormek Questions / Re: T-2000 repair
Last post by John Hancock Sr - Today at 01:05:49 AM
Quote from: Ken S on June 22, 2024, 03:26:13 PMYour problem is probably the starting capacitor

I agree with Ken. These things are only a few $$ and pretty easy to get off eBay. The value for the Tormek appears to be 100uF and 240V volt.  They are pretty easy to replace. 
Knife Sharpening / Re: SVM-45 knife jig accident
Last post by cbwx34 - Yesterday at 11:25:28 PM
Quote from: Dav81 on Yesterday at 09:37:23 PM...
I was using the silicon blackstone, as I was grinding HSS planer blades before. Switched to the knife jig and worked for a few minutes, setting angles and getting a feel of the edge. I was almost done, and had set the stone to fine grit to give it a quick polish, when I guess the leading edge of the knife suddenly caught on the stone, yanking the knife and jig right out of my hands, sending the whole thing under the support bar towards me.
Could part of the reason be the silicon blackstone is more aggressive, making it more prone to catch the edge like this?

I don't think it's more aggressive since you had graded it to fine.  One thought is that it caught on the the edge of the wheel.  You might consider adding a slight radius to the edge, as seen here...