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A recommended live center?

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Michael Gilligan06/03/2018 16:42:57
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23121 forum posts
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Posted by David T on 06/03/2018 16:23:02:
Posted by blowlamp on 06/03/2018 13:23:34:
Posted by David T on 05/03/2018 17:22:15:

... therefore it's the "dead" centre, regardless of whether it's rotating or not......

Being a pedant, I must point out that a running centre is driven by the workpiece.

Haha, touché

.

Well that's a let-down David

I thought you had already made some pre-emptive dismissal of blowlamps's argument, before he presented it ... and now you just submit.

MichaelG.

blowlamp06/03/2018 17:15:49
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1885 forum posts
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Posted by Michael Gilligan on 06/03/2018 16:42:57:
Posted by David T on 06/03/2018 16:23:02:
Posted by blowlamp on 06/03/2018 13:23:34:
Posted by David T on 05/03/2018 17:22:15:

... therefore it's the "dead" centre, regardless of whether it's rotating or not......

Being a pedant, I must point out that a running centre is driven by the workpiece.

Haha, touché

.

Well that's a let-down David

I thought you had already made some pre-emptive dismissal of blowlamps's argument, before he presented it ... and now you just submit.

MichaelG.

 

 

 

The force is strong with this one. devil

Edited By blowlamp on 06/03/2018 17:18:39

David T06/03/2018 18:28:43
76 forum posts
14 photos
Posted by Michael Gilligan on 06/03/2018 16:42:57:

Well that's a let-down David

I thought you had already made some pre-emptive dismissal of blowlamps's argument, before he presented it ... and now you just submit.

MichaelG.

 

 

 

I do apologise for my poor form. I shall try again:

Posted by blowlamp on 06/03/2018 13:23:34:
Posted by David T on 05/03/2018 17:22:15:

... therefore it's the "dead" centre, regardless of whether it's rotating or not......

Being a pedant, I must point out that a running centre is driven by the workpiece.

All of the running centres recommended thus far are, presumably, shipped in some kind of box and are certainly not engaged by "the workpiece". If a running centre is "live" by virtue of it being driven by the workpiece, then by definition it must be a "dead" centre until such time as the customer has received it and put it to use.

Once again I apologise for my earlier transgressance. I hope this satisfies the pedantic community devil

Edited By David T on 06/03/2018 18:30:08

Vic06/03/2018 18:37:27
3453 forum posts
23 photos

I’ve heard these conversations before about live and dead centres. Whilst it makes sense both now and in the past to call a non rotating centre a “Drive” centre if it’s Driving the work piece (mounted in the head stock) calling it a “live” centre makes no sense in this day and age.

Michael Gilligan06/03/2018 19:18:31
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23121 forum posts
1360 photos

Posted by David T on 06/03/2018 18:28:43:

... All of the running centres recommended thus far are, presumably, shipped in some kind of box and are certainly not engaged by "the workpiece". If a running centre is "live" by virtue of it being driven by the workpiece, then by definition it must be a "dead" centre until such time as the customer has received it and put it to use.

Once again I apologise for my earlier transgressance. I hope this satisfies the pedantic community devil

.

Much better yes

MichaelG.

blowlamp06/03/2018 20:03:45
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1885 forum posts
111 photos
Posted by David T on 06/03/2018 18:28:43:
Posted by Michael Gilligan on 06/03/2018 16:42:57:

Well that's a let-down David

I thought you had already made some pre-emptive dismissal of blowlamps's argument, before he presented it ... and now you just submit.

MichaelG.

I do apologise for my poor form. I shall try again:

Posted by blowlamp on 06/03/2018 13:23:34:
Posted by David T on 05/03/2018 17:22:15:

... therefore it's the "dead" centre, regardless of whether it's rotating or not......

Being a pedant, I must point out that a running centre is driven by the workpiece.

All of the running centres recommended thus far are, presumably, shipped in some kind of box and are certainly not engaged by "the workpiece". If a running centre is "live" by virtue of it being driven by the workpiece, then by definition it must be a "dead" centre until such time as the customer has received it and put it to use.

Once again I apologise for my earlier transgressance. I hope this satisfies the pedantic community devil

Edited By David T on 06/03/2018 18:30:08

Your arguing skills are BOSS like!!... fist

... You'll fit in well around here.

Female tutor by any chance? smiley

Neil Wyatt07/03/2018 09:05:02
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19226 forum posts
749 photos
86 articles

It's worth reflecting that a 'dead centre lathe' was originally one without a spindle, just two opposed and non-rotating centres, like a watchmaker's turns or a bodger's lathe.

Neil

Michael Gilligan07/03/2018 10:24:03
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23121 forum posts
1360 photos
Posted by Neil Wyatt on 07/03/2018 09:05:02:

It's worth reflecting that a 'dead centre lathe' was originally one without a spindle, just two opposed and non-rotating centres, like a watchmaker's turns or a bodger's lathe.

Neil

.

... and is still used by fine watchmakers for the very best work.

The collets and bearings that we mortals take to be 'near perfect' are sometimes not good enough.

MichaelG.

David T07/03/2018 14:46:46
76 forum posts
14 photos

Posted by blowlamp on 06/03/2018 20:03:45:

Posted by David T on 06/03/2018 18:28:43:
Posted by Michael Gilligan on 06/03/2018 16:42:57:

Well that's a let-down David

I thought you had already made some pre-emptive dismissal of blowlamps's argument, before he presented it ... and now you just submit.

MichaelG.

I do apologise for my poor form. I shall try again:

Posted by blowlamp on 06/03/2018 13:23:34:
Posted by David T on 05/03/2018 17:22:15:

... therefore it's the "dead" centre, regardless of whether it's rotating or not......

Being a pedant, I must point out that a running centre is driven by the workpiece.

All of the running centres recommended thus far are, presumably, shipped in some kind of box and are certainly not engaged by "the workpiece". If a running centre is "live" by virtue of it being driven by the workpiece, then by definition it must be a "dead" centre until such time as the customer has received it and put it to use.

Once again I apologise for my earlier transgressance. I hope this satisfies the pedantic community devil

Edited By David T on 06/03/2018 18:30:08

Your arguing skills are BOSS like!!... fist

... You'll fit in well around here.

Female tutor by any chance? smiley

I learnt from the best wink

If only my engineering talents were as sharp.....

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