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Ultrasonic Chef's Knife

seattleultrasonics.com

41–50 of 697 posts

Re: Ultrasonic Chef's Knife

#41
I would get this for the same reason I'm planning to replace my couch with an optimal-for-moving-through-a-turn couch as soon as I find a carpenter willing to make it. The middle part will be evened-out by a separate, round cushion.

Re: Ultrasonic Chef's Knife

#42

We made it! We’ve finally invented vibroblades!

the next version will come with plasma micro jets ejection from the cutting edge - convenient for civilian use. I'm also wandering about an array of shaped micro-charges on the edge - should be able to cut through several millimeters of steel in one move, etc. so a soldier can cut though an opponent's ballistic vest or a into an lightly armored IFV.

Re: Ultrasonic Chef's Knife

#44
post #40

Earlier quoted context omitted.

The battery is comes out for recharging, so replacing a dead battery should be trivial

It's a proprietary form factor, so you're gambling on replacements being available down the line. I don't think it'll be easy to rebuild the battery pack without compromising the casing.

Given the battery specs and the form factor of the products, they could have used a 14500 cell that retails for $5. That's not as much recurring revenue as charging $80 for something proprietary though.

Re: Ultrasonic Chef's Knife

#46

Don't buy dumb electronic kitchen gadgets. Get a good steel knife, learn how to sharpen it properly, and you're set for life.

In particular, you don't need expensive stones, guides or lapping systems to do it. An aliexpress-grade 3000/8000 waterstone, a flattening stone and a strop will get most knives shaving the hairs off your arm for under £20 all-in.

The odds I will ever learn to use a waterstone or strop are nil. A Chef’s Choice manual sharpener is really easy and makes my knives plenty sharp enough to cut tomatoes.

Re: Ultrasonic Chef's Knife

#50
post #46

Earlier quoted context omitted.

In particular, you don't need expensive stones, guides or lapping systems to do it. An aliexpress-grade 3000/8000 waterstone, a flattening stone and a strop will get most knives shaving the hairs off your arm for under £20 all-in.

The odds I will ever learn to use a waterstone or strop are nil. A Chef’s Choice manual sharpener is really easy and makes my knives plenty sharp enough to cut tomatoes.

Yeah they work fine too. The point is not that you need stones to sharpen knives at all, but you don't need insanely expensive glass or diamond stones like the YouTubers tend to tell you to get to shaving-sharp if you want to.

Just don't use a sharpener with the carbide v-blades that shave off slivers of metal or you'll get a knife with a concave edge that doesn't meet the board along the whole length and that really is a pain to fix (related note on that, a kitchen knife edge up in a vice is quite a disconcerting thing!).

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