As promised:

MichaelG.

Here is the dog clutch I had on my Exe lathe I fitted one on my Drummond flat bed as well useing a pin type location
Nobby

Edited By Nobby on 22/02/2015 18:16:42

Edited By Nobby on 22/02/2015 18:22:02

Edited By Nobby on 22/02/2015 18:23:10

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John,

Vague recollection of it being a Fine Feed arrangement … But not certain.

MichaelG.

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Ahh … Suppressed memories

Have a look on this EW thread.

Now, does anyone have ME for 10-November-1955 

Edited By Michael Gilligan on 22/02/2015 23:05:20

Edited By Michael Gilligan on 22/02/2015 23:07:39

Edited By Ady1 on 25/02/2015 08:56:08

John and Michael,

To answer your question, in Cleeve's book WPS 3 'Screwcutting in the lathe' he describes the rear mounted drive using the round belt off the spindle as a permanently available self act gearing running at approximately 1/10 spindle speed.

It is brought into engagement with any gear train assembled by lowering the quadrant onto the small pinion extreme bottom left in the last picture that Michael presented

Regards

Brian.

When you look at the pictures at the top of this page on Cleeves original ML7 it's a very complex machine, made so to serve various functions to allow him to work smarter at the time.

However as we have moved on there is probably nothing that machine can do that cannot be performed by a couple of stepper motors and a simple controller.

I feel that we are lucky being where we are in time in that we are seeing great strides being taken, probably more so than the last 100 years when machine tools hardly changed.

It is more than possible now as many readers here are in the same boat, that you can have a CNC lathe, mill, laser cutter and 3D printer, all in a little shed. In Martin Cleeves day you would have been burnt on a fire of Drummond round bed packing cases as a heretic.

What is helping most though is the power of the internet where people can share ideas, drawings instantaneously without waiting for the next edition of postbag and the fact it can be a 10 sided conversation.

Edited By John Stevenson on 25/02/2015 09:50:26

I really couldn't agree more, it was all so ponderous years ago.

It is though both interesting and instructive to understand the purely mechanical approach of those times, it gives insights into the more flexible approach available today, and being a pure 'clanky' one I have much greater empathy with.

Brian

Might have been ponderous but at least the keyboard "Warrior" syndrome didn't occur.

Regards Ian

I know it's an attempt at humour but you're having a wholly unnecessary pop at Myford owners again. Not everyone who owns one is like that and I have two. And the reality is that who ever bought Martin's lathe knew exactly what they were buying. Substitute the word Bridgeport in your post and imagine I'd written it to see what it feels like. This is the sort of snobbery that drives people away and given the number of Myford users here, does nothing to endear the magazine to them. Sorry, but it needed saying.

My thoughts exactly when I was reading the book. Neil, in that Martin modified his lathe to produce batches of threads commercially amd could knock them out at a fair rate. Electronic leadscrews, stepper motors and the like are ok…….till they go wrong! You know where you are with gears and clutches.

Phil