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Member postings for NIALL HORN

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

Thread: Pressurised vs loft tank CH systems?
21/03/2022 10:31:29

Southampton water is extremely hard and I have had a water softener for a number of years. Very well worth while! When we last replaced the boiler I kept the loft cold water tank (supplying the HW cylinder) fed from the softener as it made it easy to arrange a softened cold feed to the upstairs bath and shower pump. Unfortunately the geometry made it impractical to run the downstairs electric shower from the softened supply, but it doesn’t get used as often anyway.


Thread: New Member from Southampton
06/12/2021 10:28:07

Hi William

I have sent you a private message.


Thread: Windows 10 "upgrade" to Windows 11 Anyone tried it?
04/12/2021 11:37:57

It will not work if you have an older computer without a tpn module. Older motherboards like mine have a socket and you can install one, but it may not be worth the cost.


Thread: Chemical Etching of Glass
27/10/2021 16:23:03

I used to have a book of microscopy techniques for amateurs. It described subliming realgar (arsenic trisulphide) on to a microscope slide for mounting diatoms. It was the preferred medium due to it’s high refractive index for counting the dots. Not something I would do without a fume cupboard!

It was also used as an artist’s pigment - must have made a few people rather ill.


Thread: ME back numbers for disposal
28/07/2021 11:12:05

I have to dispose of a large number of back issues of Model Engineer from a deceased friend's workshop. There are about 30 complete volumes between 81 to 204, and about 55 part- and almost-complete volumes from 80 to 220. The condition is mostly good.

There are also some older engineering books:
General Engineering Workshop Practice (Odhams)
Engineering Mechanisms for Designers and Inventors (Industrial Press 1944 reprint)
Newnes Complete Engineer vs. 1 and 2
Arithmetic, Drawing, Measuring Instruments, Lathe Work, Chilled Iron (ICS Reference Library 7A)
Engineering Workshop Practice vs. 2 and 3 (Caxton)

The complete collection is available for a donation of £100 to Tools for Self Reliance. It would need to be collected from Southampton (it would need an estate car or small van). It must be taken as a lot - no pic-and-mix!

It would be a shame to put them in the recycling bin. If you want a more detailed breakdown of what is available , PM me and I will send a spreadsheet, although it will not contain details of individual issues, only volume numbers.


Thread: What to do when you lose something
11/05/2021 11:11:29

It’s a variation on this theme, but the last time I broke down a compost heap I found three vegetable peeling knives - and they were still usable after a trip through the dishwasher!


Thread: Pipe bending
13/02/2021 12:49:59

The traditional way with large diameter copper is sand filling, tight plugs at each end and lots of heat. I imagine this is still done in continental Europe where copper is used for rainwater downpipes on historic buildings. Real craftsmanship!


Edited By NIALL HORN on 13/02/2021 12:50:45

Thread: Tool identification help please..
30/12/2020 15:33:04

It would be worth contacting Jenny Blackwell at I have bought similar inserts from her at shows, and their postal service is super-efficient.


Thread: Parts Washer Pump
06/12/2020 22:02:03

Amazon list a pump for use with electric drills which is allegedly suitable for oil and costs £10.99 - not a lot to gamble!

Thread: Stark no.4 tail stock taper.
24/11/2020 10:20:11

You could also consider the Jarno taper series - they also have smaller increments than the Morse series.


22/11/2020 21:45:48

Stark used a unique collet size. I bought some old collets thinking they were 3C, found they were not and finally identified them from the table in Machinery's Handbook 10th edn. I do not know if the tailstock is the same taper, but it could be one of the Brown and Sharpe ones - they vary by smaller increments that Morse.

I did advertise them and got no takers - if they are of any interest send me a PM and you can have them for a charitable donation to Tools For Selfreliance.


Thread: Engineering Sights on Google Streetview
08/10/2020 16:16:57

This thread reminded me that I used to enjoy seeing the stainless steel bull in front of the Avesta steelworks beside the M1 near Sheffield. All gone now, but the bull survived and Google tells me that it is now outside the Magna Science Adventure Centre at Rotherham. It was too big for my front garden anyway!


Thread: Unidentified collet
17/08/2020 16:09:16

Thanks for the information DC31k - perhaps it's all a home job! I'll stop bothering with it and treat myself to an ER set to add to the Autolock for non-threaded cutters.


17/08/2020 11:15:40

Only one slot is complete (see the picture of the tail end) so it would have a limited closing capacity. It may be home-made as it is not fully-hard, but the chuck does look professional although scruffy. There are no identifying marks at all.

I cannot find dimensions for the obselete Schaublin E or ES series collots, but it does look similar to the photos I found. It may have the same taper as the ER series but I don't have any to make a comparison.


unknown collet 3.jpgchuck.jpg

17/08/2020 10:06:20

Thanks for the suggestions - I'll try searching on-line. The collet came with a 3MT chuck, so some more sizes would be useful.


16/08/2020 10:04:48

unknown collet 2.jpgCan anyone identify this collet? Maximum diameter 29.7mm, overall length 38mm.

Niallunknown collet 1.jpg

Edited By NIALL HORN on 16/08/2020 10:05:57

Thread: More freebies from the sortout
16/08/2020 09:59:39

I thought I would give this a second chance in case anyone interested missed it previously.


20/07/2020 14:47:25

More items too good to dump. Send me a PM if you are interested - to be collected from Southampton or you pay the postage. For photos see my album.

1) 2 off stepping motors. I do not have drivers to test them but the windings check out and they were removed from working equipment.

2) 2 off large air-damped relays. 240 V AC coils; contacts rated 10A break, 20A make @ 240V. They are heavy - 1.7 Kg each!

3) 2 off solenoid air valves. 24 V DC coils. Made in USA so may have NPT threads.


Thread: is it a flycutter ?
16/07/2020 22:11:15

Plumber's tank cutter from the days of galvanised water tanks?

Thread: Help please identifying a large vertical slide
14/07/2020 14:18:48

Many thanks for the responses. I bought it with the Colchester Student in mind, but I no longer have that so I'll try and find out what it's worth. No point in it sitting around and rusting.


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