Thanks guys. 52100 is a good steel.
Thanks guys. 52100 is a good steel.
https://www.facebook.com/ST-Machine-...3629542674267/
If my KKF Inbox is full (or not), please contact me via Email: anvlts@gmail.com
M,
I am really impressed with your grind. You have taken alot from Shigefusa's page in your grind, because that's what the choi shots really remind me of. Nice distal taper, slight convex from what I can see.
I took some things from Shigefusa, but not the grind. Shigefusa grind is difficult to replicate, but not impossible (you need a huge diameter radius platen) as Shigefusa double-beveled knives are hollow-ground from below spine to about 3/8 from the edge.
I have done it on a couple of practice knives, but I didn't think it had that much of an advantage over a convex grind for the extra trouble in grinding and finishing. I do a shallow convex grind similar to Carter knives instead.
M
https://www.facebook.com/ST-Machine-...3629542674267/
If my KKF Inbox is full (or not), please contact me via Email: anvlts@gmail.com
Shigefusa is different because the spine is so thick, then it really goes down, like a concave, flattens out, and a little convex at the end. Your edge at the end and shoulders are thin like his. It's more pronounced on the small one.
https://www.facebook.com/ST-Machine-...3629542674267/
If my KKF Inbox is full (or not), please contact me via Email: anvlts@gmail.com
Bravo chazmtb. With that answer, you have won a showroom full of cash and prizes.
Joking aside. Your description and Marko's confirmation has probably imprinted in my mind more about Shige geo than anything else. I don't own one, but at least I understand them a bit better now. Thank you for this mini discussion.
k.
Danny 'Zwiefel' Owen - 1971-2016 Moderator and Knife Knut for Eternity. RIP
It is a very unique geometry, though I have seen it on razors (come to think Iizuka-san studied under Iwasaki) and some variation of it on swords. Hollow-grinding (concave) reduced weight and thickness in the mid-section while leaving thickness on the spine intact, but it doesn't go all the way to the edge - it stops about 10mm from it, and then there is a transition into convex.
It's pretty impressive if you think that Shigefusa folks do final shaping and polishing by hand. They have their methods and I am sure they are pretty efficient (soft cladding helps if you use sen or metal scrapers of sorts), but still.
Their hollow-grind translates into 7-8' radius, so it won't be done on a typical whet wheel (~3' radius).
M
https://www.facebook.com/ST-Machine-...3629542674267/
If my KKF Inbox is full (or not), please contact me via Email: anvlts@gmail.com
Yes that one is very difficult to replicate.
I think its thats why he only stik to clad knifes, it will be almost impossibile to do on mono steel knifes.
I think he use "San" to do that. But still very impressive how he do that by hand, i think the only thing he use his weel for is for ura on single bevel.
It is a very unique geometry, though I have seen it on razors (come to think Iizuka-san studied under Iwasaki) and some variation of it on swords. Hollow-grinding (concave) reduced weight and thickness in the mid-section while leaving thickness on the spine intact, but it doesn't go all the way to the edge - it stops about 10mm from it, and then there is a transition into convex.
It's pretty impressive if you think that Shigefusa folks do final shaping and polishing by hand. They have their methods and I am sure they are pretty efficient (soft cladding helps if you use sen or metal scrapers of sorts), but still.
Their hollow-grind translates into 7-8' radius, so it won't be done on a typical whet wheel (~3' radius).
https://www.facebook.com/ST-Machine-...3629542674267/
If my KKF Inbox is full (or not), please contact me via Email: anvlts@gmail.com
https://www.facebook.com/ST-Machine-...3629542674267/
If my KKF Inbox is full (or not), please contact me via Email: anvlts@gmail.com