Miles Spathelf

[Miles Spathelf]

tcmeyer wrote:

So maybe if you had a trapezoidal stone or hone so the angle would change as you raised and lowered the block relative to the edge… Then if you carefully used continuous motion, raising the block as you traversed along the edge, you might come pretty close to matching the angle at the edge. Or not.

That’s pretty much my original design from the first post.  One being with an angled horizontal to the blade the other with and angle vertical to the blade.  But I think just angling the knife itself (by moving the blade edge at the tip closer to the pivot point of the WEPS) will make for a nice smooth transition from 15 degrees to 12 degrees.  Plus I won’t have to use NEARLY as much diamond spray on my standard WEPS strop compared to a 3″ x 4″ piece of nanocloth 🙂

[Miles Spathelf]

If I kept the knife straight and level it would be at pretty much the same angle throughout the blade on the WEPS. However adjusting the the blade side to side angle and up and down angle (Thanks for the suggestions!)  I should be able to create a smooth transition from 30 inc to 24 inc degrees.  Granted if I adjust the side to side angle of the knife I could only work on one side at a time…but it’ll be worth it to me.  Cheers

 

tcmeyer wrote:

According to the Rockstead “making” page, they have a continuously varying angle, starting at 30 deg at the heel and ending with 24 deg at the tip. With the WEPS, the angle as it would be used on the Shun pretty much stays the same. How would you duplicate the factory edge except by hand? Are these degrees per side or inclusive? Never mind, I see in your first post that it’s inclusive. I just didn’t (don’t) really understand your widget.

cbwx34 wrote:

[Miles Spathelf]

cbwx34 wrote:

Miles Spathelf wrote:

Ah a Shim!!! That sounds much easier than making a huge honing plate…not to mention all of the diamond spray it would use. http://rockstead.jp/making/ I was just going by how they made the knife…I really haven’t seen too much on maintenance as they offer a sharpening service. I just think I can do better

Ah… didn’t see the ‘making’ page. Interesting that it’s not only ground different heel to tip, but also convex… yet their only suggested maintenance is stropping on a hard strop. Just seems a bit of a disconnect between how it’s made. But I can see why they recommend sending it back for sharpening. Would like to see the machine they use… i understand your first post now… I was thinking along a different track. It does seem to me angling the knife would be simpler… hard to tell without a bit of experimenting. p.s. The link you posted on the Tormek is the correct one.

Thanks!  Yeah I like the idea of angling the knife and/or raising the tip to get my desired effect.  I’m pretty much just refining the edge with diamond spray.  I’m not sure what they use 🙂  but originally the cnc-ed the blade and then did some hand work.  I’m curious about all the jigs they must have.  Cheers

[Miles Spathelf]

dima wrote:

Good luck! I think tormek adapter might help as well, as far as rotating the blade goes. Not just for small blades only Please let us know of an outcome!

This little guy?

 

http://www.tormek.com/en/jigs/svm00/index.php

 

It certainly would make using shims pretty easy…far easier than adjusting the blade each time 🙂

[Miles Spathelf]

dima wrote:

Miles Spathelf wrote:

The knife in question is a rockstead shun. It has a ~4.125″ blade with a wharncliffe-ish shape so there isn’t much of a “belly” . I’m fairly certain it’s not long enough to meet the necessary length to have a 3 degree change of the stropping angle

What if you rotate tip up? I have a reverse case, when angle increases dramatically towards the tip of the blade. I was able to address it by rotating tip down. Required angle difference was greater than 8 dps. Search forums for microtech closer thread.

I tried that with a ruler but didn’t get the angle I wanted….though I didn’t actually sharpen anything and tried to get measurements from the angle cube.  I’ll give it a go with a sharpie!  Thanks!

[Miles Spathelf]

Ah a Shim!!!  That sounds much easier than making a huge honing plate…not to mention all of the diamond spray it would use.

http://rockstead.jp/making/

I was just going by how they made the knife…I really haven’t seen too much on maintenance as they offer a sharpening service.  I just think I can do better 🙂

1 user thanked author for this post.

cbwx34

[Miles Spathelf]

Thanks for the post.  The knife in question is a rockstead shun.  It has a ~4.125″ blade with a wharncliffe-ish shape so there isn’t much of a “belly” .  I’m fairly certain it’s not long enough to meet the necessary length to have a 3 degree change of the stropping angle 🙁

Rockstead Shun pics

 

Also…another way to think of the “Twist” version is if I molded something to the side of the blade and then elongated it to a square.

 

Cheers

 

[Author]

Posts