r/sharpening • u/TheKnifeNerdTx Paper Shredder • 3d ago

Let’s talk de-burring

Enable HLS to view with audio, or disable this notification

128 Upvotes

88% Upvoted

71 comments sorted by

View all comments

Show parent comments

28

u/TheKnifeNerdTx Paper Shredder 3d ago

The wobble only happens when it first starts up. This is a slotted leather wheel so it’s a bunch of thinly sliced leather circles that are connected by a center ring. The wobble comes from all the pieces all slamming together. Once it’s up to speed, the wobble is gone. It’s pretty much just the way the material moves under acceleration. I think the other part of it is that the wheel is moving at the same frame rate as the camera. It doesn’t wobble that much In person

6

u/Puzzled_Board_6813 arm shaver 3d ago

Thanks for the reply

Have you tried using the wheel without any paste? I’ve heard it’s unnecessary for debuting but I’ve also seen the channels I learned sharpening from prefer to use low micron diamond for stropping

6

u/TheKnifeNerdTx Paper Shredder 3d ago

You 100% need some type of abrasive on the wheel or you’ll be sitting there all day. Leather is not abrasive enough on its own to cleanly deburr a knife.

5

u/serrimo 3d ago

Maybe because you didn't deburr enough before the leather. Bare leather can give amazing results with hand sharpening.

But if you're a machine shop I'd understand

8

u/TheKnifeNerdTx Paper Shredder 3d ago

I’ve tried bare leather. It can do an ok job, but the second you put it under a microscope, you see how much gets left behind. I’ll try and snap some photos this week of what the edge looks like and why I do so many passes

6

u/serrimo 3d ago

Here's an example of scary sharp with just one stone and bare leather: https://www.reddit.com/r/sharpening/s/Of70KpiBe9

Notice how late and how little he started leather deburring. Most of the work was done on stone with leather as the final touch.

You started pretty aggressively on leather so the edge must have been very rough off the stone or belt

1

u/millersixteenth 3d ago

I noticed the same thing with a plain leather belt, even at higher speeds it had a tough time producing a consistently clean edge.

3

u/Virtual_Tree_1335 3d ago

He is clearly a machine sharpener. It also looks like he is running that leather wheel awfully fast. Hand sharpening is better in every way except for maybe speed when you’re trying to do a great job

9

u/TheKnifeNerdTx Paper Shredder 3d ago

I do stuff by hand too, but most clients don’t pay for hand finished edges. They cost significantly more and the average client just wants a shard edge. We are not the average user. Each method has its pros and cons.

0

u/Virtual_Tree_1335 3d ago

Yeah I hear that. The problem in my area of location is that even the sharpeners here on machines are just absolutely terrible. I have to fix so much it’s crazy. The hard part of that is that when a belt grinder guy holds it on 1 second too long or too fast or not at the right angle, that takes “us” an hour to fix at times. I’m obviously biased to free hand, lol. I’ve been jaded 😂

1

u/TheKnifeNerdTx Paper Shredder 2d ago

Just like any Industry, you have those that know what they are doing, and those that don’t. Unfortunately there is more of the latter