"The KJ-45 Centering Knife Jig centers knife blades up to 10 mm thick."
(https://tormek.com/en/products/grinding-jigs/kj-45-centering-knife-jig)
How???
The knob shown in the picture was fully tightened.
How what? I don't understand your question.
Quote from: 3D Anvil on November 21, 2022, 06:58:38 AM
How what? I don't understand your question.
Sorry.
Tormek said KJ-45 can be used at 10mm thick blade, but I found it's impossible.
Personally, I get to a maximum of 9,2 mm. But then it does not clamp optimally. Then I have to go back to 6 mm.
So? What? Would you have complained if Tormek had said "up to 9.2mm? It is what it is, be happy that it does what its primary purpose is - self centering - up to 9.2mm. If you can't be happy with that, take initiative, substitute longer screws.
Rick
I think the OP's problem was that the max width was less that 5mm instead of 10.
Are the metal screws unscrewed to the max so that the jaw width is at its max as well ?
Quote from: Sharpco on November 21, 2022, 05:24:10 AM
"The KJ-45 Centering Knife Jig centers knife blades up to 10 mm thick."
(https://tormek.com/en/products/grinding-jigs/kj-45-centering-knife-jig)
How???
The knob shown in the picture was fully tightened.
Easily clamped an object 9mm wide...
(https://forum.tormek.com/index.php?action=dlattach;topic=5146.0;attach=6941)
... I don't understand... ???
It will clamp something 10mm wide, but at that point the jaws are actually angled out from the blade, so contact isn't going to be great. The thickest blade I have at the moment is 6.9mm and I can clamp that no problem. It's rock solid.
I just clamped a 10 mm Allen key in the KJ45. Not centered but clamped tight nonetheless.
Tried to attach a photo but 'file size' was 'too large'.
Can someone please tell me how to attach a photo?
Quote from: Sir Amwell on November 21, 2022, 05:20:27 PM
I just clamped a 10 mm Allen key in the KJ45. Not centered but clamped tight nonetheless.
Tried to attach a photo but 'file size' was 'too large'.
Can someone please tell me how to attach a photo?
Not to state the obvious, but you have to resize your photos if you want to post them. ;)
I'm curious, not critical. My thickest knife is my Mora Garberg. It is 3.2mm thick. Has anyone actually tried to sharpen a 10mm thick non tapered knife which would not fit in the KJ-45?
Ken
I would be interested to see a knife with a 10 mm spine.
There seems to be a niche trend lately of folder makers making RIDICULOUSLY thick knives. Here's one that's just about 10mm. https://www.youtube.com/watch?v=YmFbvYxOGuU
Hello Adam,
thank you for the Youtube address. The comment in the video is clear: Not for practical use, just for fun!
Quote from: 3D Anvil on November 21, 2022, 06:38:44 PM
There seems to be a niche trend lately of folder makers making RIDICULOUSLY thick knives. Here's one that's just about 10mm. https://www.youtube.com/watch?v=YmFbvYxOGuU
That's not a knife it's a joke.
Quote from: WimSpi on November 21, 2022, 01:32:00 PM
Personally, I get to a maximum of 9,2 mm. But then it does not clamp optimally. Then I have to go back to 6 mm.
Hello.
The jaws of your jig are not parallel.
Quote from: cbwx34 on November 21, 2022, 04:20:15 PM
Quote from: Sharpco on November 21, 2022, 05:24:10 AM
"The KJ-45 Centering Knife Jig centers knife blades up to 10 mm thick."
(https://tormek.com/en/products/grinding-jigs/kj-45-centering-knife-jig)
How???
The knob shown in the picture was fully tightened.
Easily clamped an object 9mm wide...
(https://forum.tormek.com/index.php?action=dlattach;topic=5146.0;attach=6941)
... I don't understand... ???
Hello.
The jaws of your jig are not parallel.
Quote from: RickKrung on November 21, 2022, 03:33:58 PM
So? What? Would you have complained if Tormek had said "up to 9.2mm? It is what it is, be happy that it does what its primary purpose is - self centering - up to 9.2mm. If you can't be happy with that, take initiative, substitute longer screws.
Rick
This is instruction of KJ-45.
As you can see, jaws have to contact with surface of blade. So if there is no bevel(e.g. scandi grind), jaws must be parellel.
Quote from: 3D Anvil on November 21, 2022, 06:38:44 PM
There seems to be a niche trend lately of folder makers making RIDICULOUSLY thick knives. Here's one that's just about 10mm. https://www.youtube.com/watch?v=YmFbvYxOGuU
3D,
I watched part of the video you linked. These knives look more like expensive "cabinet princesses" than users to me. Please excuse my peasant tastes; I would rather have a Mora, Buck, or Swiss Army knife. :)
Ken
Quote from: Sharpco on November 22, 2022, 01:25:13 AM
Hello.
The jaws of your jig are not parallel.
Ah. I see what you're measuring. You're right, stock it probably won't clamp a 10mm thick blade. I think around 6mm or so would be the max. Adding a longer rear screw or putting something under the stock screw (I tried a penny) will get a bit more.
But yeah, the instructions should reflect what it'll do out of the box, (or an explanation of how they came up with 10mm.)
Quote from: Ken S on November 22, 2022, 02:31:33 AM
Quote from: 3D Anvil on November 21, 2022, 06:38:44 PM
There seems to be a niche trend lately of folder makers making RIDICULOUSLY thick knives. Here's one that's just about 10mm. https://www.youtube.com/watch?v=YmFbvYxOGuU
3D,
I watched part of the video you linked. These knives look more like expensive "cabinet princesses" than users to me. Please excuse my peasant tastes; I would rather have a Mora, Buck, or Swiss Army knife. :)
Ken
I couldn't agree more. As a rule I prefer knives with blade stock 4mm or less, and the thinner the better. There's no reason for any knife to be 10mm thick, unless you're using it as a pry bar, in which case you should get a pry bar.
Quote from: cbwx34 on November 22, 2022, 05:19:40 AM
Quote from: Sharpco on November 22, 2022, 01:25:13 AM
Hello.
The jaws of your jig are not parallel.
Ah. I see what you're measuring. You're right, stock it probably won't clamp a 10mm thick blade. I think around 6mm or so would be the max. Adding a longer rear screw or putting something under the stock screw (I tried a penny) will get a bit more.
But yeah, the instructions should reflect what it'll do out of the box, (or an explanation of how they came up with 10mm.)
Welp ... if you see my post from the previous page, the clamp is *very* solid on a 6.9mm blade ... if you crank down on it hard enough. No, the jaws are probably not parallel at that width, but if the blade is locked in that doesn't bother me.
Quote from: RickKrung on November 21, 2022, 03:33:58 PM
So? What? Would you have complained if Tormek had said "up to 9.2mm? It is what it is, be happy that it does what its primary purpose is - self centering - up to 9.2mm. If you can't be happy with that, take initiative, substitute longer screws.
Rick
I was just responding to Sharpco's question, which does not get beyond 4.39 mm. So I myself come to something more, as stated in my topic.
No more.
Quote from: Sharpco on November 22, 2022, 01:23:10 AM
Quote from: WimSpi on November 21, 2022, 01:32:00 PM
Personally, I get to a maximum of 9,2 mm. But then it does not clamp optimally. Then I have to go back to 6 mm.
Hello.
The jaws of your jig are not parallel.
You're right about that.