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Messages - Hannsi1957

Pages: [1] 2 3 ... 6
1
Knife Sharpening / Re: Universal support bar add-on modification.
« on: April 10, 2021, 04:38:41 am »
I think your biggest source of error is your caliper.
with a caliper like the one shown in the picture, you will always have deviations. this starts with the fact that you are not sitting in the center of the toolbar. the range of the depth gauge is too small for this.
so you should, if you already make the effort, use a pure depth gauge. by the way, deviations of 0.8 mm in the angle are less than 0.5 degrees. you will not realize these. other error rates weigh much more heavily.


2
Knife Sharpening / Re: What is really needed for deburring...
« on: March 17, 2021, 11:02:34 pm »

Now a few links to Pavol Šandor youtube channel, where is shown how the edge looks after sharpening, the last used stone is Tyrolit F1200 (3 µm), which is equivalent grit to JIS 4000 = Tormek SJ-250. On older videos (with tests) is the last used stone Tyrolit F400 (17 µm), which is equivalent grit to JIS 1000. I emphasize that no honing is used for the tested knives!


[/quote]

I have to correct you a little bit. 3 micron corresponds to approx. 6500-6800 grit. the japan stone from Tormek has approx. 4000 grit. thus 3 micron is clearly finer. However, even a 3 micron stone will always produce a burr. removing this is the great art. even knives that still have such a micro burr can be very sharp. however, you will only get the last bit of sharpness when this micro burr is also removed. and this is not possible without felt or leather wheel or stroping.
any stone, no matter how fine, will produce a burr.

cheers Hanns

3
Knife Sharpening / Re: Vertical Bases - are they all the same?
« on: March 10, 2021, 07:04:17 pm »
Measurements are only nearly the same between KG and mine.
For T8 mine have fix numbers in it for all other machines or FWB u can use my universal software.

Cheers Hanns

4
Knife Sharpening / Re: Chip removal
« on: January 18, 2021, 10:21:35 pm »
a 2:30 video with english subtitles. Have fun ;)

https://youtu.be/-YEu8BNJho0

5
you can buy several jigs and au8s each 0.5 mm from the fixed part of the clamp out, or you can as Rick makes it different (mostly for valves) underlay plates, in any case you will get so circa a good result. is a bit fiddly but practice makes perfect. :) or you can make it easy for yourself and get a jig that closes on both sides and reliably tension your knife always in the middle.
cheers Hanns

https://schleifjunkies.de/en/produkt/on-both-sides-closing-clamp-centered-clamping-of-the-knife/



6
Knife Sharpening / Re: Why Felt is Best for Deburring
« on: January 04, 2021, 08:55:35 pm »
much, doesn't always help much. i coat my felt wheel a maximum of 3-4 times a year. that's perfectly adequate. the thing with the BESS values i've already shown in a video.You can't rely on this at all, because far too many components play into the measurement. and as I said before, whether I cut myself with 50 or 60 Bess...... hurts both.

7
Knife Sharpening / Re: Why Felt is Best for Deburring
« on: January 02, 2021, 08:11:07 pm »
To all the rock hard felt people, how much pressure do you use? I have the “proper” RHF and use the 1 micron spray...but for some reason I don’t have the kind of results I read about on this forum. I use a very light pressure, basically just the weight of the knife itself. I have  BESS tested and usually see a decrease in sharpness. For information I might go from cbn 400 to 1000 and then debur on the 250 mm leather wheel from Hanns. Usually 1 degree higher. At that point I’m happy with the results. BUT if I decide to get sharper on the RGF...it’s worse??

hmmmm, i test a lot with this costelation... after the 1000 grit wheel go on the Felt with 1° more then u grind before, then use the leather with ur previous grindingangle.
4 strokes each side on the felt wheel with no pressure should work. same on the leatherwheel with a little pressure.

cheers Hanns

8
Knife Sharpening / Re: A Faster, More Repeatable Way to Set Up USB Height?
« on: December 30, 2020, 09:35:02 am »
please excuse me if i start smiling at your comments. ;) if you are already so meticulous about the whole thing..... maybe you can also tell me the difference in the degree of pain when i cut myself with an exactly 15° ground knife compared to a cut with a 15.05° ground knife? i'm sure you understand what i'm getting at..... you can also exaggerate everything. simple and comprehensible should be the motto. under this aspect, your explanations go absolutely too far for me.
but you have put a lot of thought into it, respect for that.
greetings Hanns

9
Did u mean taht ?  ;D ;)
later the day in my shop  8)
#cheers Hanns


10
I think the problem lies somewhere else... just a thought to think about.... it doesn't matter if the T4 or the T8 goes from a stone or any other wheel with 200 or 250 to a 170 or 220 mm wheel (leather). it just doesn't fit for me. however, i'm neither a mathematician nor an engineer. just a feeling.
for this reason i have now created new leather wheels with a diameter of 250 mm for the T8. Tomorrow i will also get some 200 mm wheels for the T4 for some friends. i hope this will solve the problems.
cheers Hanns


11
Knife Sharpening / Re: Laser Goniometer - Need Replacement
« on: November 20, 2020, 02:23:42 pm »
don't get me wrong arthur, that wasn't a criticism at all. i use the one with magnets and find it easy to use and since it has kept every knife clean so far, i don't see any need for such a design concept "for me". i didn't mean to criticize your wealth of ideas, on the contrary i am always surprised what ideas some people come up with.

12
Knife Sharpening / Re: Using 1u Diamond Spray On Leather Honing Wheel
« on: November 19, 2020, 02:49:29 pm »
u can use 2 leatherwheels with 250mm diameter at the same time with different coating. first with 1 micron diamondspray to deburr and second with 0.25 diamond to polish or chromiumoxide 0.3


13
Knife Sharpening / Re: Laser Goniometer - Need Replacement
« on: November 19, 2020, 11:26:04 am »
So much work instead of using the model with magnets in.

14
Knife Sharpening / Re: Using 1u Diamond Spray On Leather Honing Wheel
« on: November 17, 2020, 11:55:20 pm »
i use 1micron to deburing (monocrystalline diamond) and 0,5 for polish polycristalline
both works perfect.
but now i use same on feltwheel, more effective

cheers Hanns

15
Knife Sharpening / refreshing ur grindstones
« on: November 15, 2020, 10:42:26 pm »
today I got a special tip from an old knife master who I think fits here quite well. Of course this also applies to less affected stones, or for all those who want to refresh their stone.
The pictures show the stone that was half dipped in citric acid for 48 hours. if i don't believe it, just try it with an old stone. afterwards the stone grinds better. i will definitely try it.
cheers Hanns


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