09-02-2017, 07:18 PM
(This post was last modified: 09-02-2017, 07:19 PM by Rupert Lucius.)
(09-02-2017, 05:31 PM)Mark Reich Wrote: I did some initial testing last night, just to see how things might go. Now I think this is going to be easier than I thought.
I didn't need to get very complicated, and it didn't take long to get a surprisingly clear picture of the 140 and 400 Atoma plates, just by cutting up one little ol piece of cheap rope. I'm not sure it needs to be anything more significant than that.
I used three knives out of the same batch, to see how accurately I can sharpen and cut rope. I was trying to estimate human error, and see what kind of a range of numbers to expect. I'm happy to say the numbers were encouraging.
Exactly, Mr Grepper! Who the heck wants to measure how dull stuff is?! Well, now it's clear that notion is a big stumbling block, and I think we've been missing out. I really felt eager to measure the blades After I'd cut rope!
Measuring initial sharpness of all three blades after the 140 Atoma showed I needed to be more careful and thorough about removing the burr. I was getting up to 230, and down to 150 on different parts of the blades. I tried two alternating passes per side +1-2*, and the apexes were clean and sharp. I could see the hint of microbevel with 10x, but they were way more uniform in the 150 range.
For sure we are interested -
These blades were sharp before I started, but I still generated a tiny burr, flipped it and cut it off. One blade, a 4" Wharncliffe, only took one pass. It wasn't perfect, but I wanted to see what a quick deburring would measure. "How dull" turns out to be a pretty good question!
Any interest in how the Atomas did in a quick test?
For sure we are interested
Rupert