Any good jokes ... ?

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Alex H

Legendary Member
Location
Alnwick
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Alex H

Legendary Member
Location
Alnwick
3.jpg
 

Tenkaykev

Guru
Location
Poole
In order to have a murder of Crows, there must be

View attachment 749169

probable caws.

If they were Scottish crows it would be a murrrrder...
 

Alex321

Guru
Location
South Wales
There is a serious point there. Taper fittings which rely only on friction are extensively used for holding machine tooling. First time I came across it was on a big electric kango drill we were using to drill quite deep 1" diameter holes in rock, the drill bit was just held in by a tapered socket with nothing like a chuck or anything

https://en.wikipedia.org/wiki/Machine_taper

The same is true with lathes - you have drive centres and tailstock 'live' centres which are just held by tapers. They need knocking out from the back to get them out (actually on my tailstock it auto-ejects when you wind it in far enough).
 

dicko

Guru
Location
Derbyshire
The same is true with lathes - you have drive centres and tailstock 'live' centres which are just held by tapers. They need knocking out from the back to get them out (actually on my tailstock it auto-ejects when you wind it in far enough).

Twelve years a tool room centre lath turner and the Morse Taper shanks never gave me a problem.
 

Profpointy

Legendary Member
The same is true with lathes - you have drive centres and tailstock 'live' centres which are just held by tapers. They need knocking out from the back to get them out (actually on my tailstock it auto-ejects when you wind it in far enough).

I think my own lathe did that at the tailstock taper too. Handy for getting the drill chuck free. Some of my other taper tools and adapters had a slot so you could tap a wedge in

I seem to remember that on the Kango drill we used, to get the drill bit free you had to bash the side of the arbour with a hammer to "bounce" it loose. The guy in charge was very
capable so would have spotted a slot or whatever.
 
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