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[biggriffin]

It's pure porn. Sorry it's from twitter.

  https://twitter.com/theJeremyVine/status/1111325125092298756?s=19

[Bigron]

British motorbikes could have done with that back in the day.....

Ron.

[Sir Tigger KC]

Magic! 

[biggriffin]

Ive watched quite a few times,, and still find it brilliant...

[STEMO]

That is amazing.

[Doctor Gollum]

Early April fool?

[STEMO]

Early April fool?

Err....no

https://boingboing.net/2016/11/30/neat-demonstration-of-edm-cutt.html

[aaronjb]

For the next trick - Google up a video of "wringing" gauge blocks together..

If you want another tease - blocks of metal so finely ground that if you slide them together with nothing between them, they stick to each other. Magically. (No, not magnetism)

[Entwood]

For the next trick - Google up a video of "wringing" gauge blocks together..

If you want another tease - blocks of metal so finely ground that if you slide them together with nothing between them, they stick to each other. Magically. (No, not magnetism)

Nope air pressure, surface tension and molecular interaction .... no magic whatsoever .. pure physics .. 

[Nick W]

For the next trick - Google up a video of "wringing" gauge blocks together..

If you want another tease - blocks of metal so finely ground that if you slide them together with nothing between them, they stick to each other. Magically. (No, not magnetism)

It's high quality ground surfaces that are then lapped flat. A process that's simple in theory, but tricky(and therefore expensive) to get right

[aaronjb]

For the next trick - Google up a video of "wringing" gauge blocks together..

If you want another tease - blocks of metal so finely ground that if you slide them together with nothing between them, they stick to each other. Magically. (No, not magnetism)

It's high quality ground surfaces that are then lapped flat. A process that's simple in theory, but tricky(and therefore expensive) to get right

Which is why I don't have a set of gauge blocks .. I'm too tight to pay for a set!

[Bigron]

Ah, gauge blocks - that's the term I was looking for! A colleague in the Mechanical Department at college once took a pair of those blocks and "screwed" the faces together, eliminating all of the air between them, and challenged me to separate them.
Could I buggery!
I can't actually remember how he got them apart.....

Ron.

[Andy B]

I'd call them slip gauges 

You just slide/twist  them apart

[aaronjb]

I'd call them slip gauges 

Have any slipped out of the door?

If I had the time (and inclination) I'd keep an eye on the car boot sales for stuff like that..

[dave the builder]

A pair of 7 n/m breeze blocks provides sufficient datum surface to  work on them french cars   

[Nick W]

I'd call them slip gauges 

Have any slipped out of the door?

If I had the time (and inclination) I'd keep an eye on the car boot sales for stuff like that..

You can get a set of 32 metric ones for about £70. I've considered them several times, but doubt just how useful they would be. Pin gauges on the other hand....