"PeterC" wrote in message
. ..
On Mon, 28 Dec 2020 01:14:44 +1100, Fred wrote:

It would be amusing to design one using a PIC or somesuch and a small
electric motor with a worm drive so that you minotred a 'delta peak' in
current drain and when he nut cracked and the current fell, it backed
out
of it all.

But just cracking the shell isnt enough with some nuts like walnuts.

Walnuts are easy - 2 in the hand, squeeze, one
will crack and can be turned to do another bit.

But that bit was discussing a machine which would
do all nuts automatically, not how to do it by hand.

The last walnut is more difficult.

Not with a tool that that does the cracking.

Even for almonds I've always used the
old 'calssic' crackers and put fingers
3 & 4 between the handles to act as
a buffer. Don't know if I still could
- 20-odd yeras and all that.