Everybody uses their knives differently & on different materials (and of course, blades can be made from anything from garbage "surgical stainless steel" to superduper steels like S90V and Maxamet), so the only fixed rule regarding when to back-bevel your blade is to do it when it feels like touching up/micro-beveling is no longer effective at keeping your knife as sharp as you want or need it to be. And you will definitely notice it unless you are especially insensitive to how a knife responds as it goes through material. You can preemptively redefine the shoulders of your edge even before then, of course, but you also don't want to unnecessarily remove material & increase the behind-the-edge thickness of your knife before you absolutely have to.sethwm wrote: ↑Mon Sep 26, 2022 10:43 am
At what point does micro-bevelling at 20dps not do it anymore and I need to reprofile? Is this something I'll just feel as the cutting won't be as smooth? This something people do every N sharpenings regardless? Or is this something that'd take years to get to, even while sharpening twice a week with the golden stone?
I put a micro-bevel on all my regular work knives for ease of touch-ups. I cut a literal ton of abrasive materials at work over the course of a month, but since I have a rotation of 7 work knives in steels with high levels of wear resistance (S30V, Cru-Wear, ZDP-189, K390, S110V, Maxamet, S90V), I find that I only have to back-bevel them once or twice a year (if that), and a couple of them (Maxamet, S90V) I've only back-beveled when I accidentally damaged the edge & had to do a full re-profile.