Very interesting Clay. I find Mark's observations to be on point... hopefully we can figure out what's going on! Thanks for spending the time on the different experiments... you have the dream job! lol, how does your wife ever put up w/ you?

She hardly does

razoredgeknives wrote:

wickededge wrote:


Hi Clay,

Fascinating pictures! I'm curious, how did you "super polish" the edge to begin with?

Sincerely,
--Lagrangian

wickededge wrote:


Clay,

I have been meaning to ask, 1.) what steel is this that you were using for these tests, and 2.) what RC? Just curious ... thanks

AnthonyYan wrote:


I progressed through the usual diamond plates, then on to the Micro-Fine ceramics and then used 1um diamond on cow leather, .5um diamond on cow leather, .25um diamond on kangaroo and then .125 CBN on kangaroo. I didn't spend so much time as to remove every last scratch, just the vast majority.

BassLakeDan wrote:


I've been using a bunch of utility blades from the same 100 pc pack so that they are very similar. They're listed as "high carbon" though I don't know exactly what the composition or hardness is. If I had to guess, I'd put the hardness around 57-58 HRC.

wickededge wrote:


So you did ship the Super fine 1200/1600 in this case? Did it take you much longer with the next ceramics since you did skip the fist?

SvenSchläfke wrote:


In this case I did skip them and it took a little longer, but not too bad, partly because my diamond plates are so well worn in now that they're already doing a lot of polishing before I even get to the ceramics.

Clay, is this your Dino-Lite 500 you took these pics with?

drmatt357 wrote:


Hey Doc,

These are with the 2000x metallurgical scope though only at 800x. I've only just started getting decent images at 2000x today. I'm hoping to get some more posted next week.