Hollow grind tang

N

Natlek

Joined
Jun 9, 2015
Messages
6,182
Well ,what do you think about that guys ? Can be done ? Full hollow grind from tip to but of knife ? I do this twice with full flat distal taper but this......this will be more cool :eek: I have no idea how I would grind other side/for now/ because I think that i can not grind this free hand
. . . .Scale will be little difficult to shape but it can be done .

Cross section of the knife as seen from the the back , red are scale...........

l3UwI4c.png
 
I personally wouldn't do it like that. I don't have much experience or knoweldge about full tang knives but I think it could make the tang too weak?
I would personally do it like this.
https://imgur.com/a/Iyphq76
 
Last edited:
I can t do that .This will be plunge less knife , one hollow grind from tip to end of tang.......
 
Definitely do-able... I think it’ll be hard to get a good fit the full length of the handle.

I say go for it!! It’ll be something interesting that most people don’t do. I think if you made your scales extra thick, then drilled the holes while it was all flat still, you’d have less trouble than If you wait.

Also I’d plan to make the scales faceted first, to get them as even as possible before rounding them out to fit the hollow grind.
 
A.McPherson said:
Definitely do-able... I think it’ll be hard to get a good fit the full length of the handle.

I say go for it!! It’ll be something interesting that most people don’t do. I think if you made your scales extra thick, then drilled the holes while it was all flat still, you’d have less trouble than If you wait.

Also I’d plan to make the scales faceted first, to get them as even as possible before rounding them out to fit the hollow grind.
Click to expand...
Thanks for encouragement :thumbsup: I need it :)
Well I have a plan...good or bad one it was plan :D
First I will cut and shape blank .Then drill holes for pins and two extra with thread in them for holding in jig .Next step to HT blank .Then drill scale for pins ...... After that I will TRY to grind both side to that red line with jig and rest with free hand or somehow .... god help me :) For handle I have plan to make some kind of file with matching radius of contact wheel I will use and glued sandpaper for final fit sanding , I think that will work ? I think that first I need to cut several templates in wood for test grind . . .I still have no picture in head how that would look and that is not good .
SHgwOTI.jpg
 
I if I were attempting this I think I would try cast-in-place resin composite scales. In keeping with the thread on Micarta vs mycarta (homemade), I much prefer the commercially made stuff, but I would consider this project a good reason to experiment with making my own.
It's not impossible to match the radius of the hollow grind by shaping the back of the scales, but it's not a task I would look forward to.
 
Justin King said:
I if I were attempting this I think I would try cast-in-place resin composite scales. In keeping with the thread on Micarta vs mycarta (homemade), I much prefer the commercially made stuff, but I would consider this project a good reason to experiment with making my own.
It's not impossible to match the radius of the hollow grind by shaping the back of the scales, but it's not a task I would look forward to.
Click to expand...

Honestly, I did not even think about that ...Thanks :thumbsup:
If I succeed with grind I will make marble carbon scale for this .At least that I can do right :)
zBzK4N5.jpg
 
Done ! I use spring steel for this ...... quenched in brine :) That was easy part , we shall see tomorrow what will happen :confused: I decide to grind on my 17 inch wheel .....:thumbsup:
ah3buqg.jpg

7Vqs0vs.jpg

Us5kEPs.jpg
 
The only problem is that it only shows on the ends of the handle. That is a lot of effort for a very small visual effect.
In my memory I seem to recall a commercial kitchen knife made with that tang design and a molded handle???

While the idea is doable, the only way to get a good fit in solid material easily would be to mill in the hollow grind and use the same mill to shape the scales with the reciprocal arc. Trying to curve the scales by hand to match a hand ground hollow grind would be really difficult.

Using a cast in place material would work fine. If you want removable scales, place a thin piece of saran wrap ( thin plastic kitchen wrap) over the tang when casting the scales, or coat the scales and plug the holes with wax. Either way, the scales will match the hollow exactly.

If you cast the entire handle in one piece, the result will be the best looking and easiest to do.
Drill lots of 10mm holes though the tang. Make a mold that fits the blade and cast your carbon fiber mix over the tang. The two sides will be bonded through the holes. No pins will be needed. Shape on the grinder exposing the perfect fit of the tang and handle.
 
Stacy E. Apelt - Bladesmith said:
If you cast the entire handle in one piece, the result will be the best looking and easiest to do.
Drill lots of 10mm holes though the tang. Make a mold that fits the blade and cast your carbon fiber mix over the tang. The two sides will be bonded through the holes. No pins will be needed. Shape on the grinder exposing the perfect fit of the tang and handle.
Click to expand...
That is brilliant idea :thumbsup:
Jigs............they control only one angle so whoever says that is easy to grind with jig are welcome to show us how easy it is :D
One side done, distal taper from tip to but ! Need very small correction but it is almost perfect . Fortunately blank was enough thick so I have time to find /get that mental connection with jig and how to move it while grinding ...I decide to grind whole side .
Tips for my square tube jig........see that two hole where was blank bolted ? Drill them through both side , so when you change grinding side knife would be bolted at same position on jig ........I hope it is clear what I mind .Now I have to try to figure how to grind other side ...............:D blank is not yet tempered...why to wast time on something that most likely the possibility of being destroyed is more then 70 % :D I will temper it , if it deserve that :)
bKcxLOe.jpg
 
You must log in or register to reply here.
Back
Top