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MEW 184

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Richard Parsons23/11/2011 15:42:03
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645 forum posts
33 photos

My copy arrive today (The Magyar Posta have new (Winter –Fur lined) loin cloths and new issue of cleft sticks.


I was browsing through it and in Mike Knights ‘Engineering for Beginners’ Fig 7 (page 15) I was puzzled by the algorithm it contained. I thought I knew very neigh all the trigonometric Functions. Sin, Cos, Tan, Sec, Cot, CoSec, the Versed Sin- and that function beloved by Navigators the Havsin (Half Versed Sine). I have never heard of the function ‘Can’ it is either a new one on me or a good old fashioned typo. You cannot trust the spell checker to proof read thing for you.  
One thing I learned about proof reading start at the bottom right hand side and read the document backwards. from bottom to top and right to left.
In his article Mr Knight’s article, he talks about ‘wooden polishing sticks’ In the UK I lived close to four schools so in summertime I collected the Ice Lolly sticks from the pavements (footpaths) and popped them in a plastic bag. These were washed and dried. Two stuck together make excellent backing for emery cloth/ Wet’n’Dry for polishing small items I stick the cloth/paper onto them (DO NOT let Domestic Director find them if she is into Gardening

When making a pointed object use this trick I learned at the SMEE stand at a one Model Engineer Exhibition. Take a bit of flat hard wood make a shallow ‘Vee’ grove across the wood near one end. Put it into the tool post (if you have a Dickinson tool post that is excellent). Support the rod in the ‘Vee’ and file yes File the point. .

Edited By Richard Parsons on 23/11/2011 15:45:37

Edited By Richard Parsons on 23/11/2011 15:46:23

David Clark 123/11/2011 15:51:03
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3357 forum posts
112 photos
10 articles
Hi There
Illustrator misread it.
Should be Tan.
regards David
 
 
Clive Hartland23/11/2011 15:57:28
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2929 forum posts
41 photos
Wooden polishing sticks or 'Emery boards' are still available, most watch and clock suppliers have them in their inventories.
They come in grits:- 3 (Coarse) 2 (Medium) and 1 (Fine) and a 00 grits.
Very good for cleaning up and graining plate work, Polishing heads of non ferrous and ferrous screws and general cleaning up of metal.
I would not be without them.
As to making your own, it maybe cheaper to buy a few than waste time making them.
Graining is very easy with them as you go down the grits to get a nice finish, particularly clock plates and even gears.
The sticks are approx. 12" long and just under an inch wide and about a quarter inch thick.
 
Clive
NJH23/11/2011 18:38:25
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2314 forum posts
139 photos
And in various shapes - Flat, Round, "D" shaped, Triangular.
 
Norman

Edited By NJH on 23/11/2011 18:38:48

Stub Mandrel23/11/2011 19:57:54
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4318 forum posts
291 photos
1 articles
You can sometimes get cheap emery boards under the guise of nail polishing boards.
 
> As to making your own, it maybe cheaper to buy a few than waste time making them.


If you're already collecting dog-ends and can pulls you might as well pick up the lolly sticks
 
Neil
Chris Trice23/11/2011 20:05:12
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1376 forum posts
10 photos
Use double sided tape on the back of your abrasive paper. You can put sticks, strips of plastic, anything on the back and then separate them into individual sanding sticks.
Steve Talbot 129/11/2011 17:50:51
31 forum posts
The article on the Care & Lubrication of Myford S7 Lathes I'm sure was very informative.
 
However the oil level plug on the gearbox is situated on the right hand side of the gearbox and is not the plug shown in photo 13. Also it seems a pity that there was no mention of Rocol MTS1000 ( or equivalent) if available, which should be used on items 21,22,23,24 & 25 as detailed on the Myford Lubrication Chart. In fact if this chart had been published perhaps the article could have taken just one page instead of 5!
Clive Hartland30/11/2011 15:59:21
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2929 forum posts
41 photos
I have been unable to locate the latest issue of Model Engineer workshop at W H Smith where I usually buy it.
That is the Hempstead branch and the Chatham branch here in Kent.
Has there been a problem with the supply to Smiths of this issue?
They stock the latest issue of Model Engineer.
 
Clive

Edited By Clive Hartland on 30/11/2011 16:00:53

Les Jones 130/11/2011 16:38:27
2292 forum posts
159 photos
Hi Clive,
W. H. Smith in Ormskirk have it on the shelf. There is also an independent newsagents in Ormskirk with it on the shelf. That was Monday morning this week.
 
Les.
The Merry Miller30/11/2011 17:25:10
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484 forum posts
97 photos

Clive,
 
WHS did not have it in Romford so the missus had to go all the way to Ilford where she managed to get a copy yesterday at WHS.
 
Len.
 
 
Richard Parsons30/11/2011 17:50:24
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645 forum posts
33 photos

David 1 I thought it was ‘Tan’ but one has to be sure. I for one do not know very much.


Re polishing sticks from Lolly sticks. They are first class wood. The can be stuck together with a smear of PVA glue and left in the vice overnight. I used to collect them when giving the dog her evening walk. The real, point is that they were FREE! Ok so I will be accused of having Aberdonian, Dutch and Jewish blood in my veins, but think how many ‘brown bottles’ I could have bought with my savings. I brought ¾ Kg of them with me. Oh yes if you use PVA glue they can be re used”


DMR16/12/2011 23:42:59
136 forum posts
14 photos
At least Steve Talbot 1 skipped over the article on Care & Lubrication of Myford S7 Lathes, spotting the photo 13 error. Everyone with a Myford obviously knows where to put oils, so never read the article, and people without Myfords were not interested anyway.
What about the comment in the second paragraph of page 23 starting "In photo 14.." that all the top oil nipples in earlier gearboxes are a press fit. In all the gearboxes that I now of, and almost certainly the one in photo14, the nipples are screwed in, 2 BA I think. Also, oil via these nipples will never reach the gears as is commented. That is what the oil bath is for. Correctly filled of course!
Both these errors about the gearboxes could make a bit of a mess to unsuspecting peoples gearboxes. All a bit academic now I suppose since Myford/RDG do not seem to list the early nipples or the modern cups.
On a slightly scewed line from a different post, I too have a Myford oil gun (as photo 2 of the same article) that leaked from new. Bought from the Myford shop 100 miles away some years ago, it was not returned. I figured out how it came apart and replaced the O-ring where the brass part slides in and out of the body, I "improved" the edge of the brass where it slides over the O-ring so as not to shave any off it and it has been fine ever since. I did struggle for a replacement O-ring though, and have no idea where it came from. My leak was out of said collar on applying pressure/oil to a nipple. I never had a leak out the business end if that is what other people mean by a leak.

Edited By DMR on 16/12/2011 23:56:15

Steve Talbot 117/12/2011 10:13:05
31 forum posts
Think I must be reading articles in MEW too closely as a lot of articles now seem to have drawings with information and lines missing and text that does not correspond to the drawings and reference to photos that don't exist.
 
. Perhaps churning out so many magazines in a short period does not leave sufficient time to properly proof read articles before printing. Pity ME & MEW used to be excellent; are standards slipping?
HasBean17/12/2011 10:24:01
141 forum posts
32 photos
I think that there were variations on the fittings on Myfords, the oil nipples on my S7 gearbox were 1/4" press fits, the part in my catalogue is listed as 'Lumatic HDFV4/45' which is either a straight or 45 deg 1/4" shoulder press fit.
Having said that many of the supposed BA fittings have turned out to be metric, but I think that was the case on some of the machines (mine was built in 2000).
 
As for oil guns the original 'supplied with' unit leaked like hell but was able to force out oil at a rate of knots, unfortunately up my sleeve and rarely it should have gone The new 'leak proof' replacement has to live in a jar as that leaks just as badly, although when used the oil does go where it should
 
DMR, I must have a go at what you have done, that's where mine leaks from too
 
Paul

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