Full Diamond Sharpening on Rex45 - 400 Super Vitrified and Venev Diamond Stones

[@barkingspider2007]

Great Video! I use edge leading strokes right after the burr and remove it completely, then finish the progression to a mirror edge. (Maxamet \ K390) The results are very good. The "Micro Bevel" issue with sharpening is an "Aa Ha" for me. Thanks for the heads up. : )

[@EngineersPerspective701]

Glad that helped! What I like about Maxamet and K390 is they seem to perform regardless of edge finish. Really let’s a person choose to hat they prefer and aren’t punished for it!

[@abrahamkalichman6845]

I don't know why you are finishing your blade with a 800 grit diamond stone, coming off a 400 grit stone. I have never seen anyone using that duo to actually finish the blade. I'm not even hinting At mirror finishing/ There are diamond finishing pastes that start at 8-4 micron, and end up at below half micron. Seems that all diamond abrasive users end up with the sub micron finishing. I assume you need a toothy edge feel.

[@EngineersPerspective701]

The final stone is rated at 800F which is a 5-7um particle. Aside from that though I often do like to finish around 800grit for different situations. A guy doesn’t need to go past 400grit to get a screaming sharp knife. Although it can be more difficult!

[@jesseadams45]

You can get cheap clamp on microscope things for your phone for close up pics. I bought one for work and they're pretty Chinese but ~$10 or something.

[@EngineersPerspective701]

I’ll have to check some out so I can start showing what I’m seeing!

[@whocares3986]

I like the sharpening videos. If you could show the edge bevel that would be great. I would love to see the scratch pattern off of each stone. Especially the 400 triple B. Definitely don't store you stones in the garage. Cracking a thousand dollars in stones would make me cry.

[@EngineersPerspective701]

I might try to take a few pictures through the microscope or regular and edit them in. The camera struggles to focus in on the edge during videos. I’ve just been leaving the few in there for videos but I’ll have to start taking them back and forth soon. If they cracked I’d probably cry, barf and crap myself in that order

[@ttoadd]

Awesome video man! I have the BBB 1k Super Vitrified and I am in love with it but I have been on the lookout for anyone who wants to get rid of their 400 grit but it doesn't seem like anyone wants to lol. Guess I'm waiting till the next drop!

[@EngineersPerspective701]

These beasts are definitely the future! Not sure yet if I’d look for the 1K or 3K but one of these will be mine next time!

[@abrahamkalichman6845]

The best machiné does do not agree with your opinion! You should headline this video as all you need is to apex your knife, and your good to go.

[@ZPositive]

Why no stropping to finish things off? I've never gotten my best edges if I skip stropping.

[@benjaminkim7693]

Love rex, I normally stop around 600 on diamond plates and love the results de burrs very nice. Splits hair both ways np, in my experience with rex I loose that aggression as I go higher. Maybe I just need to work on technic. Thanks for another one!

[@EngineersPerspective701]

I’d look at it in two ways 1) I genuinely believe that it’s absolutely best to have a perfectly clean edge before you strop for max results 2) Still highly unofficial, but I feel like I’ve been noticing that sometimes stropping can actually generate a new burr. It’s much finer and feels refined so it’s not easy to tell. Science of sharp and the blade grinders Australia guy have looked at it some of you want to read about it. I’m still trying to work it out still and honestly make myself more confused often with it.

[@EngineersPerspective701]

@@benjaminkim7693 a 600 grit diamond edge is awesome on it for sure! But keeping but with refinement just takes a little technique!

[@Outpost_76]

@@EngineersPerspective701 I also don't always strop especially coming off the Venev 400F or 800F. The custom heat treat stuff I have come off clean, it really is about having a clean apex during sharpening. I also agree that stropping can take you in the wrong direction.

[@EngineersPerspective701]

@@Outpost_76 do you think the negative effects of stropping occur mostly if you don’t have a clean apex to start? Other contributing factors?

[@michaell397]

I wouldn't worry too much about the test results as they only test for push cuts. The give NO indication of a toothy edge which preform much batten on most of what a folder is used for. Push cuts are fine for a chefs knife, but pretty much useless for anything but impressing with push cuts in paper. they really cant do any real work at all. Sad it has become so popular rather than a practical edge. But it photos well I guess. KnifeMaker

[@EngineersPerspective701]

The goal is always sweet bite that can whittle hair. With enough skill or help from a system hair whittling can happen on a coarse stone. Those are some SICK edges if you ask me! Most of my favorite edges come off 700-800 grit stones.

[@MichaelE.Douroux]

Great info! I'm a newbie to freehand and am now using DMTs in Fine (600 grit) and Extra Fine (1200 grit). To go up to the finest finishing grit, which Veneve would you recommend? Thanks?

[@EngineersPerspective701]

Are you asking what would be the next jump after the DMT EF? The DMT EF is about a 9um finish and the Venev 800F is a 7-5um so that would probably be your next jump if you really wanted to clean up the EF. Personally I'd go straight to the 1200F but it's a combo stone so you get both! If you're just asking which Venev I recommend, hands down the 240F/400F.

[@MichaelE.Douroux]

@@EngineersPerspective701 Many thanks! Great help in getting up to speed.

[@dombond6515]

I really hope u get the 1k or 3k because honestly if u say u love it I will have to have it. I personally can't justify the 400 but I can justify 1k or 3k!

[@EngineersPerspective701]

They’re sold out! I’ll have to wait for the next drop or try another brand unfortunately!

[@jasonerickson1033]

What venev ocb stone would u recommend if u could only have 1

[@EngineersPerspective701]

240F/400F

[@thaknobodi]

I love the sound of that stone just by the audio alone.

[@EngineersPerspective701]

It’s a sexy beast. Nothing not to love!

[@grimreaper337]

Love my 400 grit . Waiting for the next drop . It truly is a beast .

[@EngineersPerspective701]

The more I use it, the more I love it! The 3k will be in my future.

[@grimreaper337]

@@EngineersPerspective701 yep . I married a Arkansas girl and never left . Made so many trips to Dan's whetstones they know me by name . Have all of the Arkansas stones .( love them ) . Have Suehiro Debado MD stones . Silicon carbide stones , Aluminum oxide and naniwa diamond stones . 1k, 3k ,6k . But this stone is hands down my favorite . People forget how valuable a coarse stone really is . I do a progression in sharpening . Strops ? Horween cordovan. Rolled Buffalo, kangaroo and cow leather. With jende diamond emulsion. It's a hobby , plus when my wife nags me , I just sharpen my knives while looking at her and say , one of these days Alice, one of those days . We both laugh . I actually find it relaxing. Beats boredom

[@EngineersPerspective701]

You have a badass stone collection! What do you think of the Naniwa diamond 3K? How about the Debados vs the Choseras? I didn't like the Rika so I gave it away. I originally assumed it was because how soft it was but I love th King neo and how it slurries up, it's somewhat soft so IDK. It calms my busy mind!

[@grimreaper337]

@@EngineersPerspective701 honestly , the naniwa diamond waterstones are ok but they don't even come close to super vitrified diamond waterstones. I like the suehiro splash and go debados . Really thought about getting King Leo . My favorites? 1. Triple B , 400 grit vitrified diamond waterstone 2. My first grade 10x3x1 Arkansas translucent 3. First grade 10x3x1 Arkansas hard 4. First grade 10x3x1 surgical black 5. Vitrified silicon 8x3x1 240 grit 6. SUEHIRO DEBADO MD 1000 GRIT 7. 100 YEAR OLD plus washita lily white translucent stained with sperm whale oil ( Ester wax ) . Glows honey color with light . 8. Norton medium India stone 9. Spyderco ultra fine ( great for hard steels ) 10 . 12x6x1 Arkansas soft , first grade for large knives . Never really tried too many Choseras . Tried a 10,000 grit that I found soft and it dulled a knife I had sharpened on my translucent. ARKANSAS stones are hard and when lapped they stay flat for years of hard use . My surgical black is near optical flat . Mirror like . But silicon dioxide is a 7 on Mohr scale . Vanadium carbide is a 9.5 . That forced me into other stones . I talked with Mike Christy about the future of sharpening stones having the quality of Arkansas stones and being super vitrified. Shawn ( aka Big Brown Bear , NAILED IT ) . LIKE I told him , please do a 8000 grit . I can live with a 3000 grit and 8000 grit . I sharpen alot of knives free hand . Never charged anyone . Long story .

[@EngineersPerspective701]

Lots of Arkies! I just picked up a Shapton Glass 8K to experiment with that level of refinement but I've been super interested in trying out Dans translucent or surgical black for kitchen knives mostly. What do the translucent and surgical black compare to for grit rating, speed? I have heard and seen posts from Shawn that the super vits don't do the best at above 3K level. I'm not sure the exact details but I think there is still some room to innovate on the high grit super abrasives.

[@turing2376]

Scared to see my edges under microscope but I'll have to do it. I tried same progression from the bbb 400 to the veneves, worked fine, didn't take too long, but I feel like if I had the bbb 1k then needing to have any patience at all would be a thing of the past. That being said, I'm guessing that's why he says you can jump directly to the 3k because these stones are so aggressive. Unfortunately, now unless I just wanted to use the veneve 240 as my finishing stone I guess that side of the stone is pretty much obsolete. Was interesting to hear about the effects of the edge leading strokes. Will definitely think about it next sharpening

[@EngineersPerspective701]

My thoughts exactly on the 240F as well, basically became pointless instantly! The 400F Venev cleans up the 400 BBB pretty easily even on Maxamet. I think the 1K would make this all such a breeze too! Also I’ve really been coming around on the 800F and 1200F venevs lately. The polish they leave is pretty nice and now they seem to be less aggressive (maybe just glazed up a bit) and are great at reducing the burr with minimal effort. Still getting enough bite out of them that I can’t slide the edge over my fingers without cutting in

[@turing2376]

@@EngineersPerspective701 hmm, i have wondered about using higher grit stones just minimally for burr reduction vs using them for sharpening/full refinish to higher grit per say. That is something I would be interested in hearing more about.

[@EngineersPerspective701]

@@turing2376 I do it fairly frequently on knives with temperamental burrs but even in the full polish I feel like they’re particularly easy to manage the burr

[@turing2376]

@@EngineersPerspective701 I will have to experiment 👍

[@nitchdesigns9662]

Nice sharpening vid!

[@EngineersPerspective701]

Thank you!