Doesn't seem like a job for the novice. One of the most important aspects of a blades performance is geometry and I think with so much material to be removed it might be difficult to achieve the desired goals and do the blade justice, especially on stones. Anyone got a sen?
The left side of the blade is basically flat and when looking at the blade from the tang, the left side is actually thicker than the right side (at least in my case) so keeping it flat and mostly removing steel from the left side could be an option that would be mostly straightforward? Of course, there’s limits to that and it won’t be possible to have a huge taper.Doesn't seem like a job for the novice. One of the most important aspects of a blades performance is geometry and I think with so much material to be removed it might be difficult to achieve the desired goals and do the blade justice, especially on stones. Anyone got a sen?
Does anyone know the blade specs of Kaiju? I’m not looking to hit the nail on the head but curious what specs to aim for, especially grind thicknesses at different blade points
Maybe @OwlWoodworks would be kind enough to measure for us
Personally, I'd recommend finding a knife thats roughly the same size that you like and just work towards copying that. Grind, test cuts, inspect carefully, repeat until happy.
I think that demands a Kaiju Passaround.
When I finish up in the shop in a bit I'll bring the calipers in and we'll have a little measurementfest!
Looks like a flat hira-type angle was established adding just a pinch of distal taper and maybe a fresh primary bevel cut? What issues did you see and have since been resolved? Is your plan to maintain the asymmetry it looks like these came with? With this much beef at the spine I actually think a full blown hira / kireha with sharp shinogi could be possible. Anyways… since these are being reground I think it would be good to document intent, process, and results given that several people are going to have to attempt this themselves or outsource the job. Thinning a knife following an established grind is one thing, but establishing a fresh grind is another.
I'm always happy to host a "people passaround" where people come to my house to use my Kaiju
Anytime baby!
“Honey…who the hell are all these guys? And what’s a Kaiju?”
You cant imitate the most perfectly ground gyuto for full bevel polish with a few measurements lol
Not with that attitude
Here you are everyone! Enjoy your measurements, I'm heading back out to the shop now!
What's the secret party knock? Asking for KKF
Whats the current weight after the spa treatment? What would he charge for the work to get it to that point?It’s back!
Has a good tapper now, and he polished the spine and choil really well, but still has some old low spots and some new low spots. Some pretty deep scratches left over from the belt grinder.
Sadly he made the nakago crooked
Using the NSK OK 200 worked pretty well, but need something more aggressive. I’ll be trying a 120 ceramic grinding belt on a sandpaper holder to try and improve the speed of the heavy lifting, then move back to the NSK 200, really wish NSK had a 100.
5.0mm at the handle, 3.9mm middle, 2.1mm near the tip.
View attachment 294362
