By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for Tony Jeffree

Here is a list of all the postings Tony Jeffree has made in our forums. Click on a thread name to jump to the thread.

<< First < Prev 16 17 18 19 20 21 22 23 24 25 26 Next > Last >>
Thread: ...and it won't be another CNC article...
28/02/2012 22:57:26
Posted by John Stevenson on 28/02/2012 22:45:48:

No need to write the bloody article, you have done it and diddled yourself out of 18s and 7d to boot.

John S.

There's plenty more where that came from - this one will run & run

Regards,

Tony

28/02/2012 22:42:51

Its coming on...remarkably, after a complete strip down and re-assemble, there were no bits left over...apart from the leadscrew, nut & handwheel that have yet to be fitted

Next stage is to sort out a new motor & speed controller & stick the whole lot on a new base.

Edited By Tony Jeffree on 28/02/2012 22:43:58

28/02/2012 13:12:56
Posted by Ken Johnston on 28/02/2012 12:56:55:

My word, how do you achieve that refurbished finish. I think I should be told.

I could then apply it to my 1951 ML7 and the 60s mill.

On second thoughts, it would make a excellent article in it's own right. I don't recall anything like that.

It makes me envious when I see a photo of something that looks as if it's just out of the boxwhe it is perhaps of the 70's.

Regards,

Ken.


There's no big secret - just lots of elbow grease & judicious use of oil, white spirit (or paraffin if you prefer), Scotchbrite pads and abrasives. What I have discovered with this project is that a machine can look cosmetically apalling (as this one did) and yet once the cr@p has been removed it starts to look like a decent machine in no time at all.

It has been very satisfying to return it to (almost) its former glory - removing metal from the ways isn't a good plan, so without a full regrind I did get left with a bit of rust staining on the bed, and my paint job probably isn't up to the standard of the original, but it looks way better than it did.

Regards,

Tony

28/02/2012 12:07:51
Posted by John Coates on 28/02/2012 11:44:22:

I shall look forward to this Tony as I have a lathe of 1947 vintage requiring a refurb

I hope your article is both informative (telling me how to do it) and inspirational (to motivate me to get on and do it)

wink 2

John

John -

I will give it my best shot

Actually, nothing I have had to do to it so far has been particularly taxing - it's a simple machine after all - just lots of elbow-grease to get it clean and tidy. Just in the process of fixing the drive system - the original motor was shot (and dangerously so) so mine will get the VFD/3-phase motor treatment.

Regards,

Tony

28/02/2012 09:20:45
Posted by John Stevenson on 28/02/2012 09:14:03:

A stepper motor would fit purfect on that slide cheeky

John S.

True! Well, maybe I should reconsider...

Regards,

Tony

28/02/2012 09:08:11

Just a little preview "teaser" for an article I am working on which hopefully will appear in MEW before too long. I acquired the Cowells lathe shown in the pic below for a very decent price on Ebay recently (well, decent compared with what you pay for a good one!) & am in the process of restoring it to rather better health.

Cowells 90 E Basic

The next pic shows the saddle and slides after the application of a bit of TLC.

Saddle/slide assembly after a bit of TLC

Regards,

Tony

Edited By Tony Jeffree on 28/02/2012 09:12:14

Thread: Lathe Refurbishment
20/02/2012 07:38:56

Coca Cola is surprisingly useful for rust removal - it contains (among other things) phosphoric acid, which removes rust albeit slowly.

Regards,

Tony

Thread: Announcement from Arc Euro Trade Ltd.
12/02/2012 19:23:32
Posted by David Clark 1 on 11/02/2012 09:04:01:
Hi John
Did not realise you were a tea total vegetarian.
I always thought you were a beer swilling, meat eating man of the world.
regards David
 
 

He eats vegetarians

11/02/2012 14:36:02
Posted by Ketan Swali on 11/02/2012 09:23:35:
Posted by Tony Jeffree on 11/02/2012 08:15:02:
Ketan -
 
More power to your elbow - for what it's worth, I think you are making a sensible decision.
 
Regards,
Tony
Hello stranger. Trust you are back in the country for a while?
 
Ketan.
 
Hi Ketan -
 
Yes, am back for a while, although I keep spending odd weeks north of the border. If the SNP get their way, I may need to pack a passport soon
 
Regards,
Tony
11/02/2012 14:31:56
Posted by David Clark 1 on 11/02/2012 09:06:22:
Hi Ketan
How about free postage to visitors ordering on your computer from the show.
Then every sale is a bonus you may not otherwise have got.
regards David
 
Now that is an interesting idea. Taken to its logical conclusion, all of the trade stands would be selling their wares via PC, with no stock in sight - like an engineering Internet cafe...
 
Hmmm. Maybe not!
 
Regards,
Tony

Edited By Tony Jeffree on 11/02/2012 14:37:57

11/02/2012 08:15:02
Ketan -
 
More power to your elbow - for what it's worth, I think you are making a sensible decision. The world is increasingly moving to a different, on-line model of commerce, and I suspect over the coming years the ME shows will look more and more like engineering car boot sales as that trend continues.
 
Regards,
Tony

Edited By David Clark 1 on 14/02/2012 16:40:40

Thread: Books for model engineers
31/01/2012 11:43:01
Posted by David Clark 1 on 10/08/2011 18:00:05:
Hi There
I have just bought a copy of Watchmaking by George Daniels.
This book has long been out of print but has just been reprinted.
It is available from Amazon and is a superb book about high quality craftsmanship.
regards David
 

Edited By David Clark 1 on 10/08/2011 18:00:17

I just bought an interesting clockmaking book - "John Harrison's Contrivance" by Stuart Harrison. This is an in-depth look at one of Harrison's last clocks, known as the RAS Regulator, which he claimed would be accurate to 1 second in 100 days. Fascinating reading - details a good number of his inventions, including the caged roller bearing.
 
Regards,
Tony
Thread: MEW 186 - Electronic Lathe Control
25/01/2012 22:51:51
Posted by Sid Herbage on 25/01/2012 22:49:49:
Posted by mike T on 25/01/2012 18:59:14:Can anyone, perhaps Alan (cncyormyford) give a simple tutorial about how to use EMC2 as a lathe controller?
 
 
Perhaps MEW could run an article on it.
 
Cor ... wouldn't that put the cat among the pigeons
 
 

25/01/2012 19:09:33
Posted by mike T on 25/01/2012 18:59:14:
Hello Tony
 
The idea of EMC2 software running on an old PC connected to the existing shaft encoder of my old EMCO Compact 5 CNC would appear to be a perfect answer to updating this old machine.
The EMC2 website looks so intimidating with so much to learn than I have days left on this planet. Does anyone have hands on experience of making a lathe controller with EMC2? Can anyone, perhaps Alan (cncyormyford) give a simple tutorial about how to use EMC2 as a lathe controller?
 
Hi Mike -
 
I haven't played with EMC yet, I'm afraid. It is on the list...may be some while though.
 
Regards,
Tony
Thread: Stress relieve in castings.
25/01/2012 13:02:00
Posted by Ady1 on 25/01/2012 12:51:09:
I just drop my castings into a bucket of guiness
 
Al stress is relieved within 24 hours
 
Is that before or after the guinness has been recycled?
 
Regards,
Tony
25/01/2012 12:49:38
Posted by Martin W on 25/01/2012 11:50:00:
Tony
 
If you do find some round tuits I would be very grateful if you would let me know where you found them, as you say they seem to be as rare as rocking horse droppings.
 
 
Martin
Martin -
 
I suspect you will find them the same place as hens' teeth and flying pigs
 
Regards,
Tony

Edited By Tony Jeffree on 25/01/2012 12:50:13

25/01/2012 11:37:55
I find that I generally need to leave the materials and kits for potential projects under the bench to "mature" for a few years before I start building them, but that is more to do with the world shortage of round tuits than reducing stresses
 
Regards,
Tony
Thread: Beginners first simple clock kit / plans
24/01/2012 09:59:20
Posted by Chris Machin 1 on 23/01/2012 08:13:02:
Hi All ,
New to model engineering but am looking for a simple clock plan to build as a first project. Anyone got any advice / links e.t..c to suitable builds or websites ?
 
Any help appreciated,
Chris.
Hi Chris -
 
The only clock that I have made so far is the John Wilding 3/4 second pendulum clock. This is pretty simple to make, and requires only one Thorntons gear cutter to make the wheels/pinions. Being electrically driven the parts count is also low, so is an easy clock to tackle for a beginner. There are a few traps for the unwary - I documented the ones I found in ME & the article is on my wbsite here:
 
http://www.jeffree.co.uk/pages/3-4-sec-clock-improvements.html
 
I also wrote up my case design for that clock, and how I engraved the chapter ring - see:
 
http://www.jeffree.co.uk/pages/3-4-sec-clock-case.html
 
http://www.jeffree.co.uk/pages/chapter-ring.html


I have found that the clock keeps pretty good time and is reiable; however, it is worth paying particular attention to the construction of the "trigger" parts and the ratchet/gathering pawl to make sure that these can move freely under all conditions - not surprsingly you can get some curious behaviours if the count wheel isn't reliably being advanced every beat.

Good luck -

Regards,
Tony
Thread: MEW 186 - Electronic Lathe Control
22/01/2012 13:06:00
Posted by KWIL on 22/01/2012 11:47:51:
I look forward to Alan (cncyormyford) actually marketing his device await the price shock.
 
K
The price shock is actually pretty mild...
 
EMC2 is free, as is the Linux operating system that it runs under, and both will run happily in a clapped out PC that isn't good enough to run Windows any more, as long as it has a parallel port - if not, they can be bought as add-on cards for a tenner.
 
You can build yourself a shaft encoder with (say) 60 slots at the periphery of an ally disk (one of the platters from an old hard drive is ideal) and a couple of optical sensors to give you a quadrature encoder. Plus a third sensor & slot to give the index pulse. Parts cost significantly less than a tenner.
 
Yes, you will need a couple of stepper motors and stepper drivers, a PSU, and probably a breakout board. Parts cost £200-300.
 
So all in, a fraction of the cost of a Myford screwcutting box and Metric conversion set, which as I have pointed out above, isn't nearly as flexible.
 
Of course, all of the above means a fair amount of time & messing with soldering irons, but that is part of the fun.
 
Regards,
Tony

Edited By Tony Jeffree on 22/01/2012 13:07:24

22/01/2012 12:56:45
Posted by Sid Herbage on 22/01/2012 02:03:42:

I saw it as an easy way to control feed rate without having to go to all the trouble of swapping change gears on an ML7 (without gearbox) every time I wanted to go from rough cut to finish or back. In addition to not having to set up gears for screwcutting with an incomplete set of change gears.
 
That said, I've been working on my ELS for several years and one day (real soon now) I'm going to finish it.
That is one of the great attractions, in my view. John S's post about the difficulties of using an ML7 with screwcutting box to do metric, imperial, and finefeeds is exactly the experience I had with my ML7 (which incidentally is the machine John was talking about - I bought it off him a few years back). If you add BA, ...etc. to the mix then it just gets worse - not to mention the gyrations you get into if you are trying to cut a worm thread to engage with a DP spur gear. With either of these controllers, you can define any finefeed you like, and any thread pitch you like, just by pushing a few buttons. The ML-7 plus gearbox was a brilliant setup if all you ever wanted to do was Imperial threads; for anything else you are actually better off without it & just use the change wheels.
 
Regards,
Tony
<< First < Prev 16 17 18 19 20 21 22 23 24 25 26 Next > Last >>
Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
Shopping Partners
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest

 

Donate

donate