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Member postings for S.D.L.

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

Thread: Coronavirus
21/03/2020 17:36:03
Posted by Neil Wyatt on 21/03/2020 16:31:23:

Hydroxychloroquine_final_DOI_IJAA.pdf

That paper looks promising with the combination therapy.

might be a small sample but reason to do a bigger trial.

steve

Thread: Press fit 'piano wire' into steel bar
20/03/2020 14:16:50
Posted by JasonB on 20/03/2020 10:39:36:

As John says about making use if the taper on a hand reamer but for something like that you could simply drill through with as close a fitting drill and Loctite the pins into one half

Get some Dowels from some where like here.

Dowels from ACCU

Ream through both pices, press into fixed piece or loctite if required open moving jaw out by .1mm with drill if needed. Should be good enogh, try on a bit of scrap first.

Steve

Thread: Coronavirus
20/03/2020 12:13:05
Posted by Dave Halford on 20/03/2020 11:42:54

Today you now can't get a freezer since some moron said you can freeze milk. I wonder (hope) if the plastic bottles will split.

They dont split, we always freeze any full bottles of milk left when we go away

Steve

Thread: ventilator production coronavirus
18/03/2020 22:23:14

Posted by peak4 on 18/03/2020 22:16:33:

Snipped

Bill

Thanks for a really good clear explination of so many issues.

Steve

Thread: Warco WM280V-F Gearbox
18/03/2020 21:04:33

Message from Barry

20200318_095641.jpg

The first of the two gears from Warco have arrived. The other one is on back order .

Steve

16/03/2020 10:54:35

I missed adding this photo

83db032b-fc97-4dda-9da3-50697512f818.jpg

See damage to gears at bottom of photo.

Steve for Barry

16/03/2020 10:27:35
Posted by Barry Chamberlain 1 on 15/03/2020 23:02:17:

Update - I really have to apologise because I am totally unable to select and upload images for some reason. Perhaps Steve will put up my latest images which show the rearside of the removed gearbox. I have tried to select images on 2 PCs and also this, my smartphone, so seems to be an account problem.

I have been thinking about the various helpful comments that I have received so far and on reflection agree that I have been over enthusiastically changing direction before the machine has stopped. This would explain the damage to the mangled gears.

The original ( and continuing) problem of a stiff ABC selector appears to be down to the triple gear assembly not being free to slide along the shaft. By the look of things could well be debris below the shaft key which is restricting travel. Should become clearer when disassembled.

More pictures from Barry via his IT attachment support engineer (Ongoing joke with Barry as he keeps losing email attachments due to an antiquated email program he loves winkyes)

672e4dc2-bf39-4a0c-a307-1f755aa1d30e(1).jpg

a8cbd5c6-41b8-48ad-8b55-6b2b785594a9.jpg

Barry is going to look and see if he can find circlip debris later today.

I expect he will be along with updates later.

Steve

15/03/2020 16:09:22
Posted by JasonB on 15/03/2020 15:52:13:

Is there a Circlip missing from the groove?

circlip.jpg

Looks a good call from the Manual picture below.

26176110-b615-4c2b-af4a-7e2082fefba6.jpg

I know that Barrys lath went back to Warco when it was new as the selectors were stiff.

Wonder if it was broken circlip in it?

Steve

15/03/2020 15:33:23

If this works these are Barrys pictures. he sent them to me when he first took the cover off.

657e1f6e-d7ab-419d-b6ba-fa957e33f7e0.jpg

e0ef3f58-a242-49b6-ba62-34162e98d4e6.jpg

Hoping this works

Steve

Thread: Coronavirus
15/03/2020 12:49:31
Posted by pgk pgk on 15/03/2020 12:32:16:
Posted by JA on 15/03/2020 12:25:22:

Are Lidl gherkins better than Waitrose?

A subjective answer - Yes (and probably cheaper - certainly for me. Lidl is 15 miles away Waitrose is 43miles)
I suspect gherkin recipes would bore folk here. PM for my best two if you want..

Please post it, I am trying to grow some this year.

Bit of relief from bog rolls

Steve

Thread: Warco WM280V-F Gearbox
14/03/2020 05:20:20

How about just removing the gears and doing a stepper motor and encoder conversion as per this thread

Electronic leadscrew

STEVE

Thread: Metric V Imperial Measurement
08/02/2020 13:18:06
Posted by Brian H on 08/02/2020 11:56:04:

Plus one for Andrew Tinsley's comment.

I usually work in Imperial because I model old engines that were made in Imperial measurements but if I were to model a continental engine then I would use metric measurements. What's the problem?

Brian

Even that is a simple choice of preference.

model railways have been 4mm and 7mm to the foot for decades.

nothing to stop some one modelling 10mm to the foot, convert to decimal inches and divide by 10.

but do whatever suits you best

steve

08/02/2020 03:53:26
Posted by Steviegtr on 07/02/2020 22:56:00:

Wouldn't it be awesome if we went back to imperial. Stuff the rest of the world. Rule BRITANNIA. Britannia rules the waves.

Steve.

NO

Steve

Thread: Linked belt for Myford 7
07/02/2020 14:01:29
Posted by Steviegtr on 06/02/2020 17:28:13:

There is nothing wrong with using a Temporary link belt if you are not wanting to strip the machine. If at all possible then use a proper belt. Just ask the question. Would you consider taking a drive belt off a car & fitting a temporary link belt. I think it was Fenner who 1st invented them for emergency use. Mainly in factories that ran line shafts, which powered multiple machines from the one shaft. I have recently finished my work on the Myford & while doing it fitted the original spec ones that I bought from Myford's in Halifax. The machine runs near on silently. The Heastock shaft is not hard to remove from the Super 7.

Steve.

I have seen them as original supply on machines nowdays and the manufacturer promotes it here.

Fenner Link Belts

Steve

Thread: Moving milling machine
31/01/2020 22:41:33

Search Hiab transport Oxfordshire in google and you will get several companies around Witney, Bicester , Oxford etc

see if you can be a part load on another trip to save some money.

steve

Thread: Bending Stainless
29/01/2020 13:55:24
Posted by Derek Lane on 29/01/2020 13:37:48:
Posted by Clive Brown 1 on 29/01/2020 13:09:19:

How deep is the flange? Are you hammering it ? Assuming it's 300 series stainless, ie non-magnetic, bending a right-angled flange of any depth will be difficult. The annealed sheet material starts off quite ductile, but work-hardens very rapidly. Annealing requires a high temperature. >1000 deg. C. Not easy in a home workshop.

Edited By Clive Brown 1 on 29/01/2020 13:10:28

The flang will only be small 1/4" or a little less I know I have not given exact sizes I will also be attempting to silver solder or if not possible soft solder again no strength is needed or have any pressure involved.

I have in the past made things by building as I go but I still need to know how materials react to different procedures.

Where i worked many years ago we used to make a former in aluminium then put in lathe chuck and use the tail stock and a pressure plate and revolving centre to sandwich the sheet of 304 / 316 stainless steel and flange it over using a bearing mounted on a holder in the tool post. .The skill was to push it over quickly.

I didn't believe it would work until i saw it with my own eyes.

Steve

Thread: Ally Pally Exhibition
19/01/2020 17:34:53
Posted by Cornish Jack on 18/01/2020 12:29:47:

Started going regularly when it was at Seymour Hall - what a 'child in a toyshop' experience that was!. Finally gave up when it moved to Epsom. The enjoyment/satisfaction (and expenditure !) graph was on a constant downward slope. A great shame 'cos it was my annual 'treat'.

rgds

Bill

This show never was at Epson this was Pickets Lock then Wembly

Steve

Thread: Where are tool fairs/swap-meets advertised?
13/01/2020 18:51:45

Newark Auto Jumble is a good start if youre near the Midlands

Steve

Thread: Imperial Fasteners
24/12/2019 21:55:07
Posted by duncan webster on 24/12/2019 17:32:04:
Posted by S.D.L. on 24/12/2019 17:09:03:
Posted by duncan webster on 23/12/2019 22:33:12:

If Smart and Brown were a UK company it is unlikely they would have used Unified screws. As at least one screw is BA, is it not likely that what looks like 3/16 BSF is actually 2BA. The difference in pitch and dia is very small, but the thread angle is different.

Cant see why not, my Mark II colchester Student is UNC / UNF it was a big push in the 60s to standardise on an international thread befire the move to metric.

Steve

Mk1 was superceded by mk2 in 1948, bit earlier than 1960's

Edited By duncan webster on 24/12/2019 17:32:21

Edited By duncan webster on 24/12/2019 17:33:00

The Mk1 Student with Roundhead with the steel base and tray came in the early 50s and the MKII first Square head came in the 60s I belive.

Steve

24/12/2019 17:09:03
Posted by duncan webster on 23/12/2019 22:33:12:

If Smart and Brown were a UK company it is unlikely they would have used Unified screws. As at least one screw is BA, is it not likely that what looks like 3/16 BSF is actually 2BA. The difference in pitch and dia is very small, but the thread angle is different.

Cant see why not, my Mark II colchester Student is UNC / UNF it was a big push in the 60s to standardise on an international thread befire the move to metric.

Steve

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