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Member postings for JA

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

Thread: Bird (feathered variety) expert(s) wanted.
31/05/2020 08:31:00

The nest box has been used this year by Blue Tits and they tolerated my presence. I spent an early morning trying to photograph them. One would approach the box from the end of a gutter four feet away. It stop that after almost being had by a Crow. Five days ago, while setting up silver soldering equipment (which is done outside), there were two fledglings who very rapidly disappeared into the bushes.


30/05/2020 12:55:05
Posted by Phil H1 on 30/05/2020 10:12:54:

Sorry to veer off a bit but a bird of prey (a bird with a sharp beak) landed on the neighbours fence a few weeks ago and just sat there as if he or she owned the place. It was about 1 foot tall, dark brown wings and a dark brown breast. I am sure it wasn't a buzzard.

Was it a sparrow hawk?

I live in the middle of a typical housing estate with fields about 200m away.

Phil H

Probably a Sparrow Hawk. A good reason to put up a bird feeder. I have a pair local me but only once has one used my bird feeder. It left the evidence on the snow below (a pile of feathers).


Thread: Workshop Gloves
30/05/2020 12:48:30

The only glove I use is a welder's glove on my left hand, either when I am silver soldering or holding something being "Dremmeled". Usually it is right handed because I cannot find the left hand glove.


Thread: Bird (feathered variety) expert(s) wanted.
29/05/2020 22:42:21

Blackbirds are very vocal, musical and loud. They can sing all day and when street lights are on.

No wonder they are a part of our culture.

I would put a lot of money on a Blackbird (probably a male).


ps. The Blackbird is a Thrush.

Edited By JA on 29/05/2020 22:43:30

Thread: How big can I go with a machine vice?
26/05/2020 08:42:24

Bigger is always better??

Bigger is always heavier. OK if you are never going to take the vice off the table.

Don't kid yourself that you can use a big vice for small work. Using a small vice for small work is much easier. Frequently I put a job in a small vice prior to putting it on the milling machine.


Edited By JA on 26/05/2020 08:43:01

Thread: The sneering detractors
23/05/2020 22:39:38
Posted by Mike Joseph on 23/05/2020 21:32:54:

Cheers all, am about to watch Arlo Guthrie's 'Alice's Restaurant'.

Keep mangling metal,


I thought it was an LP, from a long time ago. I could play it but I do not have a turntable.


Thread: Which Digital Compact Camera?
23/05/2020 18:25:17


I have stayed away from this thread since everyone has their own preferences.

I was in your position a year ago with a ten year old Nikon Coolpix pocket camera. I used to keep losing the horizon and I could not see the screen in bright sunlight. I looked at what was available and, not wanting a bridge camera or an SLR, went for a mirrorless camera with a couple of lenses. I bought from the local shop a Sony A6400 and it has done everything I wanted of it. It is quite complex but if you do more than point and shoot it is a great tool. It comes with editing software which I use (I cannot compare the software with Photoshop etc because I know nothing about them). It has re-awakened my interest in photography and I have even dug out a couple of old film cameras and bought some black and white film.

I still use the little Nikon, it is a good workshop camera.


Dave - you are not having my A6400.

Edited By JA on 23/05/2020 18:26:08

Thread: oxygen concentrators
23/05/2020 14:21:19

I think the economics of all supplied atmospheric gas is dominated by the steel industry. Vast amounts of oxygen are used in the conversion of iron to steel which can only be provided by liquefying air. All the other gases, mostly nitrogen and argon, are by-products.


Edited By JA on 23/05/2020 14:23:01

Edited By JA on 23/05/2020 14:24:29

Thread: Bumblebee behaviour
22/05/2020 17:41:54


How deep should the holes be?


Thread: First grandchild, which book?
18/05/2020 12:10:55

Being sensible - money, as Clive suggests.

Being silly -

duncan thom and young.jpg

You will need Mr Dull's book after the third page. It is also a better read than Neville Shute.


Thread: Aircraft General Discussion
17/05/2020 23:26:59


The tailplane anhedral is the give away. The nose seems to have grown a chin.


17/05/2020 23:15:10


I am glad to hear someone is moving towards normality although it sounds very bureaucratic.

Go carefully, I wish you every success coming out of shut down and I hope we all follow.



Plasma - F4 Phantom

Edited By JA on 17/05/2020 23:16:19

Thread: Fixing a ball to a govenor arm
11/05/2020 13:15:25

I worried about this on an engine I am making.

I bought some 5/16" diameter stainless steel balls last year at the Midland show, from Polly Engineering I think. I found that the balls could be touched by a file. After that it all became rather easy - I held a ball in a collet on the lathe and then drilled and tapped a 10BA hole. The arm obviously has a mating 10BA threaded end.


Thread: Crime rate
11/05/2020 09:04:41

A friend's son is a policeman and he reports that, locally, minor crime have dropped considerably. This is due to the closure of pubs, so not alcohol fuelled fights at closing time. One could say it has gone domestic.

I did get the impression that the police do not like trying to enforce the 2m separation rule.


Thread: Where do you put your chuck key?
10/05/2020 22:00:17

To reinforce Nick’s comment - If you not about to actually make a cut on a lathe, or milling machine, or to check the running speed, that big red button should be pushed fully in.

Most work alone in their workshops - What is going to happen to you if something goes very, very wrong?


09/05/2020 08:33:22

I agree with John MC. Magnetism is an absolute curse.

As for chuck keys: When the chuck is not in use and off the lathe, it lives with the chuck. When the chuck is fitted to the lathe and not being used, on the shelf behind the lathe with the other lathe tools. When the lathe is in use, it is usually found, after a search, on the fitting bench four yards from the lathe (I am not sure how it gets there).


Thread: inland seagulls
30/04/2020 13:11:30
Posted by Guy Lamb on 30/04/2020 13:01:59:

To bastardise Parkinsons Law: Population expands to the limit of the available food.

The Rev. Thomas Malthus, 1766 to 1834.


Thread: P&W Jig Borers
28/04/2020 12:34:09

I have a friend who operated a Geni, they were only ever known as Genis where I worked, (5E model, I think) for a good part of his working life. The factory had two, side by side, and only four persons were allowed to use them, two on days and two on nights. In their later days they were in an area called "The Fitters' Mod Pool". They were only ever used for one off jobs such as machining access in large very costly parts for instrumentation (thermocouples, strain gauges etc) and such like. They had to be available for urgent jobs at all times. There were long periods when they did nothing and, sometimes the management turned a blind eye to foreigners. I knew someone who had a Vauxhall Cavalier cylinder head skimmed on one.

A few years ago Home and Workshop Machinery was selling one. It seemed quite cheap but would not fit in my workshop.

A link: - Stuart beat me to the link


Edited By JA on 28/04/2020 12:35:08

Edited By JA on 28/04/2020 12:40:11

Edited By JA on 28/04/2020 12:41:55

Thread: Blot On The Landscape
24/04/2020 19:57:43

My understanding is that freight trains block the running of the faster passenger services. After the Beeching cuts this was not a problem: The passenger numbers were down and freight was on the roads (except for coal trains to power stations). Now that freight is returning to the railways and passenger trains are full this problem has returned.

Before the War there here was some separation between freight and passenger routes. The main lines, as we know them, carried most of the passengers while the lines line the Settle and Carlisle and the Great Central took the freight. Marples (Beeching was only carrying out orders) believed his motorways should carry the freight so the Great Central disappeared and the Settle and Carlisle nearly followed.

What is now needed is the re-opening of the freight routes which is hardly sexy. So, in stead, we have ambitious projects like HS2.

I have to admit that the whole system outside the east and west coast main lines north of Manchester and Sheffield must be sorted out.

There is little chance of this happening (even before Corvid19), they pulled the plug on the electrification of the Great Western line because it was too difficult (difficulty = cost over-run).


Edited By JA on 24/04/2020 20:00:04

Thread: Which suppliers are open for business?
08/04/2020 21:35:48

I ordered some 8BA nuts and screws from BA Bolts Ltd this afternoon. My payment was accepted so I am expecting a package through the door in a few days.


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