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Member postings for mick H

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

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Thread: midlands model exhibition
18/10/2011 07:53:05
Posted by Nicholas Farr on 17/10/2011 21:00:43:
Hi, I also went on Friday, had an enjoyable day, and watched a casting demo, the guy who did that made his furnace from and domestic spin dryer and other bits and bobs from domestic appliances. Got most of the things I was after and as an extra, even bought castings for a little model engine with my namesake that was used on Savages Organs which accopanied their fairground Gallopers, don't know when I'll get round to machining them up though. Didn't manage to see the taction engines in steam though. My round trip was about 240 miles, and I think it was worth it.
 
Regards Nick

Nick, what scale is the engine that you bought the castings for?

Thread: Silver or Stainless?
16/10/2011 19:04:22
Exactly Richard. The pharmacist probably got himself one of those degrees that you get with three tokens from a cornflakes packet.

Edited By mick H on 16/10/2011 19:04:51

16/10/2011 05:54:31
In the olden days, when I was a boy and when this was a proper country and people had commonsense it was possible to buy small quantities of all manner of chemicals at Boots and other chemists. About a year ago I tried to buy some copper sulphate at a Boots pharmacy and the pharmacist refused to sell me any in case I wanted to make a bomb with it !!!
 
So careful what you're doing with that stuff !
14/10/2011 07:47:53
Cut off a small bit, heat to bright red heat then stick it (quench) in cold water, if it is silver steel then it will have hardened to such an extent that you will not be able to file it. After you have identified it, mark it with a paint code.
Some stainless is magnetic, though I believe most is not.

Edited By mick H on 14/10/2011 07:48:42

Edited By mick H on 14/10/2011 07:49:09

Thread: Piston ring fitting
10/10/2011 16:50:14
I haven't tried it on pistons and rings that size but when I used to mess around with old cars and motor bikes there was a thin steel cylindrical device available which could be tightened around the piston and rings enough to hold the rings in place but enabling the piston to slide, enabling the piston to be fed in , ring by ring so as to speak. Shouldn't be too difficult to knock one up.
Thread: Old lathe, chuck accuracy
09/10/2011 20:00:43
John .....I think I could guarantee a run out, drilling a hole of those dimensions from end to end on my set up!
 
If it is for a cylinder bore, have you considered boring it......although you would need a pretty slender boring bar....but accuracy would be almost guaranteed.
09/10/2011 19:41:19
John.....you mention that the inaccuracy arose when drilling a piece of bar although no dimensions of the bar or size of drill are given. I have found that when drilling bar from end to end that like as not the hole at the emergent end will not be centred due to drill deviation. If drilling bar to more than about an inch depth (or even less) the safest approach is to drill both ends so that the holes meet in the middle, so to speak. Or for even more accuracy, bore the hole.
 
If the chuck is "consistently" inaccurate the adjustable backplate as suggested a few posts back may well solve your problem for general purpose work. It worked for me.
 
 Edit.........David Littlewood's post was not there when I started typing this one out......and his suggestions are far better than mine. 

Edited By mick H on 09/10/2011 19:53:03

Thread: Safety valve springs
07/10/2011 18:50:50
Are drawings for Gordon Smith safety valves available?
Thread: Printing multiple pages
22/09/2011 09:28:17
It occurred me a few days ago, what a knowledgeable, helpful and generous-hearted bunch the ME forum lot are. I wondered - not that anyone is counting- what value could be put on the advice and assistance, shared and given freely, and with no strings attached, on a daily basis, were it to be measured on the same basis as other professional consultancy rates.
 
What a pity it is that others, who seem to be indulging in petty meanness, could not take from some of the goodwill exhibited on this forum.
Thread: silver solder
19/09/2011 12:49:42
Kwil....looking at some of the documents, it seems that the clowns in Brussels have been working on this for years and years and years. I suggest that the answer to your question is ....they had nothing better to do with themselves.
 
It beggars belief that they really want to save lives.....if that were the case there are dozens of more effective ways in all walks of life.
19/09/2011 09:05:28
Thanks for the references John Baguley. Just to pick out one choice morsel. Calculations suggest that there might be between 6 and 29 deaths which might be related to Cadmium Oxide poisoning, annually, throughout the 15 EU countries. (Yes, I know, that's 6 to 29 too many).
 
In my part of Lincolnshire there are more than 50 deaths caused annually by people being mown down by cars. God knows how many throughout the 15 EU countries. Statistically, I am sure that I am safer, silver soldering in my shed 24/7 than going for a walk down the lane!
19/09/2011 06:47:22
It is not an advert that I posted.....just an available bargain that I spotted and have brought to wider notice. I have no connection whatsoever with the seller other than as a satisfied purchaser.
 

Edited By mick H on 19/09/2011 06:48:06

18/09/2011 15:54:58
I bought a 1/2 Kg reel of Johnson Matthey silver solder from a gentleman (Mr Harvey) advertising on this site under 'Classified' - 'Miscellaneous' - what a bargain - £100 for what I have subsequently found would cost well over double that elsewhere. I know that he had one reel left. Highly recommended.
Thread: Safety Valves - Viton balls
17/09/2011 20:59:18
Has anyone any experience of using Viton balls in safety valves? I have used them very successfully in pumps and clacks and wonder whether the principle is transferable to safety valves. Gauge 1 is the scale I am working in.
Thread: Michael Cox Tangential Tool Holder- MEW 179
15/09/2011 06:54:56
Thanks for the response. My comment arose as a result of working on a piece of small diameter brass......perhaps that explains it, but I should emphasise I still get a "good" finish as opposed to a "superb" finish on BMS. I shall experiment further.
14/09/2011 17:36:28
The recommended toolbit grind cuts superbly on BMS and stainless but what about brass. Do you grind different angles? I don't get the finish I would expect on brass. Can Mike or Chris help on this one?
Thread: benchtop power supply
11/09/2011 16:58:10
A few days ago I succumbed to a whim and bought a "12v DC 4 amp" power supply, thinking that it might power a 7.2v drill. It seems to produce "pulses" of power so that the drill continuously stutters on/off. I have little knowledge or understanding of these matters but cursory research indicates that it might be a switched mode device of some sort. I accept that it was probably a waste of money, but is there any use for it?
Thread: Drill Sharpening Jigs - Advice please.
05/09/2011 15:08:32
Can anyone give me a recommendation for an effective drill sharpener? I already have a Martek and one of those ubiquitous jigs but results on either are pretty indifferent. I would rather not talk about my attempts at freehand sharpening! I know that there have been threads on this in the past. Is there anything new out there?

Edited By mick H on 05/09/2011 15:14:19

Edited By David Clark 1 on 05/09/2011 19:47:34

Thread: Silly question
04/09/2011 14:24:42
Having said that I haven't seen them advertised, they are in the Tracy Tools catalogue.
04/09/2011 13:41:55
Some time ago I bought a set of tapered drill bits at a car boot sale, not really knowing what they were for. I was subsequently  told that they are used after a normal drill bit, the size of the minor diameter of the taper pin has first drilled a parallel hole. I haven't used them often but they do work well. I know it doesn't help Stirlingsingle but I thought I would throw it in. I have never seen tapered bits offered for sale in catalogues etc .

Edited By mick H on 04/09/2011 13:42:29

Edited By mick H on 04/09/2011 13:49:54

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