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Member postings for Russell Eberhardt

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

Thread: Covid TV updates.
22/04/2021 12:02:09
Posted by Ady1 on 22/04/2021 10:56:59:

Spanish flu raced through humanity and then disappeared

It had killed off everyone it possibly could and there was nowhere left for it to keep going, no-one tried to stop it spreading, only basic flu variants managed to continue

Not entirely true. Some history of the attempts to control it here **LINK** some lessons to be learned there.

Russell

22/04/2021 10:29:35
Posted by SillyOldDuffer on 21/04/2021 10:47:04:
Most other countries don't know if they have variants or not. The world has suffered 3 waves, and variants could cause more. The outlook isn't clear yet.

Agreed, although here in France the testing for variants is very thorough. Figures are published by department regularly on the COVID tracking app. Here in dept. 66 we currently have 92.6 % of positive tests showing the British variant and 0.7 % South African and Brazilian variants. It shows how rapidly they can spread despite the restrictions on movement.

Russell

Thread: Small saw. Proxxon or something else
22/04/2021 10:15:03

To cut sheet with a saw you ideally need at least two teeth in contact with the work at all times. The finest Swiss piercing saw blades available are 32 teeth per cm. so will just about do for your 0.1 mm. thickness but can only be used with a piercing saw frame. You could possibly adapt the blade holding on a scroll saw to take one but they are rather fragile. Watchmakers manage to cut accurately with them but it takes practice!

A pair of good quality watchmaker's tin snips should do the job, followed by a small hammer against a flat surface is necessary.

Russell

Thread: Brazil Nuts [the dynamic behaviour of]
22/04/2021 09:39:57

I've noticed the same effect with dried fruit mixture. The banana slices are always on top however many times you try to get the mixed.

I think Steve's 5000 gallon tank was more to do with buoyancy rather than vibration.

Russell

Thread: chester champion mk1 foot print & working space?
21/04/2021 16:22:08

I have the Warco version of that mill (ZX15) and have it mounted on a drip tray 35 in. wide by 25 in. back to front. You do need another 8 in. each side though to accomodate full movement of the x travel but if you arrange it so that the table is above the height of the bench or whatever you have at the side you can allow the table to extend over the bench.

One big improvement I have made is to replace the single phase motor with a three phase one and inverter. Not only gives you easy speed variation but reduces vibration and thus improves surface finish.

Russell

Thread: Duff memory stick
17/04/2021 16:09:48

Does it contain any information you need to keep? If not you could try formatting it on the computer that says it can't read it. Format it as NTFS if that option is available.

If it does contain important information you are probably stuffed anyway.

Russell

Thread: Covid
15/04/2021 11:16:59
Posted by Hopper on 14/04/2021 23:07:48:

And remember that journalists were all those kids who failed math in highschool and took English instead.

They now go to a new university, take "Media Studies", and end up virtually unemployable.

Russell

14/04/2021 15:44:12
Posted by Peter G. Shaw on 18/03/2021 21:28:41:

Finally, one thing that always concerns me is the number of people claiming to know better than those paid experts. If those "know-alls" are so clever, why aren't they offering their services to HMG?

The trouble is that a lot of them are in government! That's certainly the case here in France, they've been totally ignoring the experts and as a result we have the highest infection rate in Europe.

Russell

Thread: VAT changes post Brexit
14/04/2021 11:29:33

I have the same problem in reverse. It is expensive and uncertain to have anything from delivered by courier from the U.K.  

Small items that can be sent by Royal Mail and are valued at less than €43 arrive here in France by La Poste with no fees or VAT to pay if it is to a private address. Doesn't help Fizzy though.

Russell

Edited By Russell Eberhardt on 14/04/2021 11:30:34

Thread: BSW
11/04/2021 14:43:36

There's a handy little program on the Lathes.co.uk website called NthreadsP which will solve all your screwcutting problems.

Russell

Thread: (bicycle) thread identification?
09/04/2021 11:07:29

Try **LINK**

https://www.engineeringtoolbox.com/british-standard-cycle-thread-d_2041.html

Russell

Edited By Russell Eberhardt on 09/04/2021 11:07:54

Thread: Anti seize grease on Myford spindle nose?
08/04/2021 10:53:44

I would have thought ordinary brown paper would absorb water and promote rust, a particular problem at sea! Perhaps the workshop stocked something like James Walker's Gaskoid which looks like brown paper.

Russell

Thread: Steel Rule Graduations Re-Blacking
04/04/2021 10:43:55
Posted by Neil Wyatt on 03/04/2021 23:40:26:

The traditional material is gunge from the swarf tray...

Neil

Applied by loosing the rule for a few weeks under the swarf? smiley

Russell

Thread: Wire Gauge Drills
02/04/2021 15:07:14

I believe they were originally based on Stubs steel wire gauge, not to be confused with Stubs iron wire gauge!

Russell

Thread: 1.1 kw brushed motor Torque
30/03/2021 09:54:34

If looking for a variable speed lathe I would want to make sure that it has a low speed range by means of a belt position change to make sure of enough torque available at low speeds.

Russell

Thread: Anyone done any Nickel or Chrome plating of mild steel parts at home?
25/03/2021 11:37:28

Years ago I did the nickel plating on the 1929 Morris Cowley shown in my album. I used a recipe that I found in a book from the University chemistry department. Unfortunately I no longer have the recipe. It used some nasty chemicals which were easy to obtain from an industrial supplier at the time. All was done on brass items. For it to adhere properly and last on steel you must copper plate first and you need a cyanide bath to do that well.

If I was doing it now I think I would go to a commercial plating firm.

Russell

Thread: A home-made gear - will it work?
24/03/2021 10:57:48

Have you considered 3D printing? I have used a 3D printed compound gear in my Atlas lathe screw cutting gear train for over a year with no problems. It was made as an experiment and has been left in place as it runs quieter than the Mazac gear.

Russell

Thread: brushless DC motor for mini lathe
22/03/2021 10:11:52
Posted by Michael Gilligan on 22/03/2021 09:07:40:
Here’s a link to one ‘U.K. Supplier’ of such items: **LINK**

https://vevor.co.uk/products/sewing-machine-motor-220v-750w-brushless-energy-saving-servo-motor-industrial

MichaelG.

That looks to be good value. It doesn't have a servo though, it's an ac induction motor with an inverter. Nothing wrong with that but I do wish suppliers would describe products accurately.

Russell

 

Edited By Russell Eberhardt on 22/03/2021 10:12:34

Thread: The Secret Science of Sewage
20/03/2021 10:39:28

For anyone not in the UK and can't get iPlayer "The Secret Science of Sewage" is on Youtube:

The Secret Science of Sewage

Russell

Thread: Pictures in posts and font sizes.
20/03/2021 09:48:39
Posted by Phil Meaken on 19/03/2021 11:45:19:
Russell, that book looks like just what I need, so I've ordered it via Amazon.

Good luck and have fun!

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