Check out this wack robotic knife sharpener!

Might just be the camera playing tricks, but it appears to have put a big recurve on the heal-end of the blade, which will make it useless for rocking.

I see that recurve too. Maybe the knife started out like that a little and the machine exacerbated it?

I see what you mean. Here's an "after" photo:

kRmv1IW.jpg



I think that little recurve (more of a bump at the very heel) was there slightly at first, and was increased because the Ace employee should have started the green "start point" laser a little further back. It was placed slightly in front of the heel, so that's where the machine started grinding, leaving a proud spot right at the heel.

I'll remove the heel bulge easily. When placing it on a flat surface, the gap under the recurved part is way smaller than it looks like it would be in the photos. Like just enough to slide the corner of a sheet of printer paper under there.



I'm surprised to see it uses flap wheels instead of grind stones

It started with some sort of diamond-coated stone wheels, then switch to flappers for the last pass.
 
I just saw this on Reddit and had to come back and share this with you guys since a lot of people seem to be curious about it. This was not my post or photos. Credit goes to HennryHeavyLemmon on Reddit. But yea looks like it completely missed about a quarter of the edge on one side. Too bad too because, although it's a little wavy, it does seem to profile it at a pretty nice looking angle. If only it could be a bit more steady.

Edit: Looks like it took a little chunk out of the end of the finger choil too.

Edit: Wait, wait. Sorry guys. I posted this after only reading through about 50 of the 100 comments. The OP later shares that an employee took the knife from him to do it and he's not certain of how it was done. The employee may have used the machine or he may have taken it into the back and used something else. If it wasn't the machine, then possibly they have a belt sander back there. Either way doesn't look too pretty haha.

eWp9KRm.png


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The machine is so obviously not designed to sharpen something like that, just by looking at it. That's like the knife version of winning a Darwin award. 🤣

This is clearly for normal, everyday people to get their kitchen knives sharpened - that's the market this was made to serve. Knives that have a heel, thin blades, probably not made of super hard steel. Maybe filet knives. Not knives with handguards or chunky opening mechanisms that abut the blade.
 
I was reading an article on this and saw this is version 1 of the machine. version 0 is the prototype the inventor has at his home. there is a version 2 coming out......be interesting to see what improvements and changes they make as they go.........

doesn't mora have the robot arms putting the shape and edges on their knives..seem to remember that from a factory video I saw....
 
Acknowledged.

I can see that happening. When I checked my local ACE yesterday they didn't have the Resharp machine but the associate did tell me that they sharpen knives.

Just assuming that he did it with the robot.... Based on the robot sharpening video (in the OP), I had the feeling the device (or, more likely, the person programming the device) had some sensors (piloting) difficulties. An automated device can just do as good as it is asked to do. A supermarket employee not understanding sharpening ? What a surprise !

The machine is so obviously not designed to sharpen something like that, just by looking at it. That's like the knife version of winning a Darwin award. 🤣

This is clearly for normal, everyday people to get their kitchen knives sharpened - that's the market this was made to serve. Knives that have a heel, thin blades, probably not made of super hard steel. Maybe filet knives. Not knives with handguards or chunky opening mechanisms that abut the blade.
Yup I agree with all of you good fellows. I suppose it would take one hell of a sophisticated machine to be able to satisfy us knife folks in the sharpening department. I've heard that Spyderco is sharpening their knives using some sort of robotic machinery now days. I'm going to have to do some research into that, that intrigues me. That just might be the way of the future if they're able to produce a consistent edge. It'd be nice if the other big companies did it also IF the "robot" is producing more consistent edges than what we're used to seeing from production companies.

I miss the edges that used to come on US made Kershaws. They used to be pretty dang consistent and very sharp when I was really into them 10 years ago and would go to their blem sales every year. I suppose it's hard for these companies to find good sharpeners to work for them and they probably dont get paid enough to stay longer term.
 
I was reading an article on this and saw this is version 1 of the machine. version 0 is the prototype the inventor has at his home. there is a version 2 coming out......be interesting to see what improvements and changes they make as they go.........

doesn't mora have the robot arms putting the shape and edges on their knives..seem to remember that from a factory video I saw....
Yup, I saw a video tour of Mora and yea they do use robot arms for their scandi grind! They come pretty darn good too considering that A: It's a scandi grind, and B: Most of them are under 20 bucks!
 
Yup I agree with all of you good fellows. I suppose it would take one hell of a sophisticated machine to be able to satisfy us knife folks in the sharpening department. I've heard that Spyderco is sharpening their knives using some sort of robotic machinery now days. I'm going to have to do some research into that, that intrigues me. That just might be the way of the future if they're able to produce a consistent edge. It'd be nice if the other big companies did it also IF the "robot" is producing more consistent edges than what we're used to seeing from production companies.

I miss the edges that used to come on US made Kershaws. They used to be pretty dang consistent and very sharp when I was really into them 10 years ago and would go to their blem sales every year. I suppose it's hard for these companies to find good sharpeners to work for them and they probably dont get paid enough to stay longer term.

It's always interesting to see what's new in robots and machines. As I've said before, ultimately this is what I'd like to train to forge and grind ti swords:


🤣 🤣 🤣
 
Yup, I saw a video tour of Mora and yea they do use robot arms for their scandi grind! They come pretty darn good too considering that A: It's a scandi grind, and B: Most of them are under 20 bucks!
It's always interesting to see what's new in robots and machines. As I've said before, ultimately this is what I'd like to train to forge and grind ti swords:


🤣 🤣 🤣
Whoa, yea now that's what we need for sharpening all these dang knives haha. That things pretty crazy.
 
I wouldn't have a problem tossing my less expensive kitchen knives into this godless knife sharpener, but I don't see myself giving it a nicer kitchen knife to play with anytime soon. It looks like they're trying to put this poor guy out of business:

 
I was reading an article on this and saw this is version 1 of the machine. version 0 is the prototype the inventor has at his home. there is a version 2 coming out......be interesting to see what improvements and changes they make as they go.........
jbmonkey jbmonkey , if you see a new version somewhere I hope you send up a flare!

My two best serrated blades that I use for light catering and in my own kitchen are a pain in the butt to sharpen.

If v.2 could do a respectable job in a few minutes on those blades, I'd buy a couple of extras just so I would have a really sharp one ready to go all the time!
 
btw, it's ReSharp.com. $7.99 per blade. a half dozen locations in San Francisco, and if you sign up for their newsletter, the 1st one's free.

since paper wheels DO overheat blades, I wonder if there's a way to tell if a blade lost its temper after a trip thru the ReSharp?
 
since paper wheels DO overheat blades, I wonder if there's a way to tell if a blade lost its temper after a trip thru the ReSharp?
Seems that would be easy enough to check. Someone should apply a little Thermochromic paint to a few areas on a blade being put through a ReSharp. (Preferably someone with previous ThermoPaint experience)
EDIT: obviously ..., the thickness/thinness of a blade (heat sink capability to absorb/spread the heat from the apex) should be taken in to account.
 
Seems that would be easy enough to check. Someone should apply a little Thermochromic paint to a few areas on a blade being put through a ReSharp. (Preferably someone with previous ThermoPaint experience)
EDIT: obviously ..., the thickness/thinness of a blade (heat sink capability to absorb/spread the heat from the apex) should be taken in to account.
I had NO IDEA that was possible!!😳
the breadth and depth of knowledge on BF continues to amaze me . . .
 
Nope not mine , but I'd stick yours in there ...wait ...nope not touching that either ! :p

Thanks though for the heads up :eek: , so to speak .:)

I don't go out to shop much anymore , but next time I'm in an ACE Hardware, I'll look-see if they got Mr Sharpening Roboto .

So many people now have zero sharpening skills , sadly enough , so I'm not totally amazed that this product exists to fill this need .
Thankfully my "short knife" won't reach...perhaps it could be modified to perform a bris if the rabbi were otherwise encumbered...
 
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