Thread: Honing a Wedge!

Originally Posted by sqzbxr

Jerry, the spreadsheet from Coticule.be has a few issues, the main being that the formula for calculating the bevel angle is wrong. The correct formula uses arc tangent, not arc sine. I have a modified version with the correct formulae, along with an improvement that eliminates cell errors if the result is zero (blank records, kamisori, etc.). It is set up to use English measurements:

Bevel Angle Calculator & Honing Log.xlsx

Thanks for posting that.

Bob

Originally Posted by Gasman

Just the area of where the hone touches the spine. Not to the back of the spine.

The bottom of the hone wear band?

Bob

Jerry - try this one: https://www.dropbox.com/s/6vqdf4bmzo...20Log.xls?dl=1

Yes Bob.

I'll give it a go sqzbxr

Same thing. Still cant put any number in it. And I am at home on a computer. Not on my phone. Ha.

OK, Wait again,
I downloaded it and now I can do something with it. Thanks for helping this old non computer guy to use this thing other than playing music, email and porn. ha

Are you downloading the file and opening it in Microsoft Excel?

OK, I've fixed both of my links - Dropbox (my file hosting service) was displaying a non-editable preview of the file. I've edited the links to bypass that and do a direct download now.

Yep, that is what it says at the top.
I put in the numbers but how do you make it calculate?

Enter your measurements in the 'Spine thickness' and 'Honing width' columns and then hit either tab or enter and it should calculate automatically.

Originally Posted by Gasman

Just the area of where the hone touches the spine. Not to the back of the spine.
Spine thickness is .220
Side of the blade from the fattest part of the spine (part that would touch the hone) to the tip of the edge is .725
And tape is .007 according to my mic.

Could easily be that the blade, due to honing over the years, has lost some blade width over the. That might explain why with or w/o tape it is over the 17 degree mark. Like anything else there is an allowable tolerance to that. IIRC the allowable tolerance is +/- 2 degrees of 17.

Bob