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

Member postings for ega

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

Thread: More Workshop space, shall I or not..?
25/03/2019 11:05:13

Plasma:

An enviable stable but not easy to view; even the vertical mill is lying down!

Thread: Unusual knurling tool
22/03/2019 14:56:29

Interesting that there are apparently three knurling wheels; also that you were able to traverse by hand.

A set of these with the knurl type indicated by the knurling on the handle would be good.

Thread: Mystery Starrett vice
21/03/2019 01:12:33
Posted by roy entwistle on 20/03/2019 21:20:23:

ega My 1920 Brown & Sharp catalogue gives them as toolmakers vice as does the box one of them came in

Roy

I was comforted to learn this as it goes some way to explain why I could not find the OP's item in my Starrett catalogue until SOD pointed out that Starrett call them clamps.

My impression is that a good deal of the production of both companies was similar and the divergence seems unusual. That said, my 1938 B&S catalogue lists a no 752 "Toolmakers' Vise" and a no 753 "Toolmakers' Vise Clamp". The latter seems closer to the OP's item.

Thread: What is a good quality lathe paint
20/03/2019 12:14:57

Whilst it is true that bath paints exist, I think the norm is vitreous enamel ie baked on glass.

Thread: Mystery Starrett vice
20/03/2019 10:59:53

NB Clamps not vices or vises.

The no 160 is also listed in Starrett's catalogue no 28 but only in the 2" size so it seems that the smaller sizes were discontinued.

Thread: 1/2" x22tpi tap?
18/03/2019 16:35:55
Posted by Andrew Tinsley on 18/03/2019 14:17:37:

Hello Nick,

Yes I noticed that too when researching this oddball sized tap. I have come across special tap sizes before, but there were always some sound reason behind their use. With many threads near this one, I can't see much logic to its existence.

Andrew.

One suggestion I have seen is that a "bastard" thread helps manufacturers to lock users in to their spares operation.

Thread: Microsoft Word
18/03/2019 13:50:53

Plus one for LibreOffice!

PDF: am I right in thinking that it was only relatively recently that Adobe put the format into the public domain?

Thread: ML7-R tumbler gears
18/03/2019 12:33:10
Posted by Michael Gilligan on 18/03/2019 08:04:57:
Posted by Hopper on 18/03/2019 02:55:25:

Later tumbler gears appear to be made from red Delrin or similar rather than the now generally obsolete Tufnol. Might be worth getting the modern gears/material.

.

I have no personal experience of the red ones ... but I remember that JS expressed an opinion:

**LINK**

https://www.model-engineer.co.uk/forums/postings.asp?th=97363

MichaelG.

Anything would be preferable to putty or "crapola"!

Thread: Toolroom lathe?
18/03/2019 11:43:33

The Gromatic advertised seems to be the one illustrated on lathes.co.uk and, perhaps, the only downside the lack of a separate power feedscrew.

Thread: Digital angle gauges
18/03/2019 11:37:05
Posted by John Haine on 18/03/2019 11:31:39:

I used to keep my Wixey in it's little case, found the battery went dead so kept it in there with the battery taken out, now it sits on a shelf ready to use upside down with the battery stuck to one of the magnets.

I have one of these and have always felt it possible to press the on button inadvertently through the soft case.

Thread: Denham Junior Mk2 Drawbar
12/03/2019 17:31:00

PS You could always chuck a piece of scrap and turn a centre on that with the driving dog then running against the chuck jaw.

Thread: Lathe screwcutting
12/03/2019 15:26:10
Posted by Michael Gilligan on 12/03/2019 15:13:59:
Posted by Plasma on 12/03/2019 11:18:27:

Any thoughts on retracting tool holders?

.

As mentioned on previous threads:

Here is the design for the one I like: **LINK**

https://archive.org/stream/PopularMechanics1976/Popular%20Mechanics-04-1976#page/n105/mode/2up

MichaelG.

It seems very enterprising of MC to publish his design in a US magazine although I imagine PM did the Americanising for him.

He called his design the "swing clear" and it looks as though it would also have "swung up" on the return pass.

Thread: Denham Junior Mk2 Drawbar
12/03/2019 15:16:29

A quick look at lathes.co.uk did not reveal the answer to your question. Why not try offering up, say, a 3MT?

Thread: Lathe screwcutting
12/03/2019 15:07:08

Straight in or angled topslide?

I have little experience of screw-cutting inserts but assume that the manufacturer has considered this question and intends them to be used either in one way or the other (probably straight in).

Some time ago on another thread I saw Jason B's suggestion of using an internal insert tool at the back of the work with the lathe running in reverse and cutting away from the headstock. As it happened I had recently bought a very cheap holder and insert and tried this with some success. My immediate reservation was that the insert was cutting in the opposite direction to that intended by the manufacturer and I was surprised that the result was an acceptable thread. The need to get the tool to the far side of the work caused me to angle the topslide which I would not otherwise have done.

When using my own HSS bits and holders my preference is for the angled topslide; having control over the helix and cutting angles of the bit is then advantageous.

Thread: Mini Lathe Rear Tool Post
10/03/2019 09:51:48

Ron Laden:

Congratulations on your success!

I have made a mental note of your ingenious use of a standard dovetail cutter.

The slit looks very neat - I think I cheated by using the bandsaw.

Thread: Colchester Student Lathe Help
09/03/2019 12:09:54
Posted by Martin Cargill on 09/03/2019 11:13:10:

Nobody yet has mentioned the idea of clamping a piece of bar in the chuck before you remove it. It gives you a "handle" sticking out of either side of the chuck to make lifting easier. It also allows you to push the back end of the bar into the headstock and then lift the front to get the chuck started onto the LO taper.

Martin

This sounds like an improvement on my own method referred to above in which the bar projects from the back of the chuck only and the chuck is gripped directly by the operator. The disadvantage of a "handle" on both sides for me, however, is that I like to store my chucks resting on their jaws. I use a stout wooden bar, rather than steel, which minimises the extra weight introduced by the "handle".

Large faceplates can be a challenge, too, particularly if they are being mounted in a gap bed. The Willson's slant bed allows its cumbersome 16" faceplate to be suspended between the edge of the saddle and a length of angle temporarily bolted across the back of the cross slide before being slid on or off the spindle:

b0011326.jpg

p1010324 003.jpg

09/03/2019 10:16:45
Posted by the artfull-codger on 08/03/2019 16:23:48:

Hi Steve, the 10" four jaw weighs the most, the 8" three jaw is lighter [but both quite heavy] I just have a piece of wood across the bed, the spindle nose is LOO taper with a key in it so after making sure everything is scrupiously clean & lightly oiled I have the key at the top & with the chuck on the timber it slides up the taper & is held on with a threaded ring [well I manage & I'm in my 70s!!!

Graham.

Checking on lathes.co.uk confirms my recollection that some Students at least had Camlock spindles. The American taper spindles were apparently L0; to achieve the desired cleanliness they could, of course, be wiped with "LOO" paper.

Thread: Hardened Silver Steel Shattered - How to Avoid?
08/03/2019 16:52:55

I wonder whether after the first, unsatisfactory, hardening you should have first annealed the work before having another go?

I assume you tempered after hardening?

Edited By ega on 08/03/2019 16:53:49

Thread: Colchester Student Lathe Help
08/03/2019 16:26:37

You don't say how large but if your Student has a 10 or 8" 4 jaw then I would agree that it will feel very big and heavy compared with the Myford 6" light pattern item. Ease of mounting is also a factor; my Willson has an L0 spindle which may be more difficult than the Camlock which I believe the Colchester has. You will no doubt have or make a cradle to sit on the bed and take the weight during changes.

I use an alternative system on the Willson which is OK but I have recently acquired a lighter 8" 4 jaw to supplement the 22KG 10" model. Being disinclined to change either for the three jaw chuck encourages the virtuous practice of centring the work!

Thread: fundamentals of machine design, orlov
07/03/2019 11:03:59

I live within walking distance of "England's largest second-hand book shop" and can appreciate the thrill of finding a hard copy gem. How much of Orlov is reflected in your current CNC mill project, I wonder?

The publishers, "Mir Books", reminded me of Novy Mir, Russian for New World.

Edited By ega on 07/03/2019 11:04:18

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

Latest Forum Posts
Support Our Partners
Ausee.com.au
Warco
Eccentric July 5 2018
Eccentric Engineering
ChesterUK
emcomachinetools
TRANSWAVE Converters
Allendale Electronics
Sarik
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