Here is a list of all the postings MW has made in our forums. Click on a thread name to jump to the thread.
Thread: Aluminium seized in steel |
19/05/2017 06:21:58 |
a hydraulic press would be my safest bet if it were available. Michael W |
Thread: Is Knurling a health hazard? |
19/05/2017 06:20:33 |
Posted by John Flack on 18/05/2017 20:34:27:
How about a 'ratio' for pet rats ..........😛😛 Just be careful you don't get pest control show up at your door! And you'd need a solution to keep out the neighbourhood cats. Michael W |
Thread: Just in case you run out of abrasive cutting discs... |
18/05/2017 18:31:59 |
Posted by SillyOldDuffer on 18/05/2017 18:17:08:
Posted by Limpet on 17/05/2017 21:38:20:
I work with digital photo printers (17,00 prints per hour) and we are changing the side guides quite often as the paper cuts through them - it's really abrasive edit typo Edited By Limpet on 17/05/2017 21:39:11 They say the Queen thinks the world outside the palace smells of fresh paint because everything gets redecorated just before she arrives. I doubt any technical demo ever went well in her presence. Dave She does strike me as a laid back character so I don't think she would mind! Michael W |
Thread: Truing up chucks |
18/05/2017 18:20:22 |
Posted by SillyOldDuffer on 18/05/2017 16:09:33:
Also, it must have been hard to make a living selling lathes that owners cosset for 80 years. It's ironic to think that the original Myford may have been killed by fans keeping old lathes going rather than supporting their preferred company by buying a new one. Dave
I agree with the tolerances to an extent, the assembled individual item has to be tested and the reason why is because of the fear that when all the bits go together it wont do as it should. If they had that much faith in the lathe components they wouldn't do it. The myford's were a victim of their own branding, they wanted good old fashioned solid quality yet as time moved on it's become increasingly harder to give that at a low price. What they could've done is adapt to the changing market and start offering machines that ordinary people can afford, it may not be the best quality but it would be true to how they started. Cut a few corners on the rear housing, using welded plate steel rather than iron castings for everything. Even they started making, or modding a far eastern type machine, yet beefed up a bit, they'd still be in business like warco. By growing too snobbish they effectively cut off any hope of connecting with their core audience, mr average who wants a decent YET AFFORDABLE!!! british lathe and isn't too fussed over a few burrs here and there! It isn't rocket science. Michael W
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18/05/2017 14:29:13 |
Posted by Nigel B on 18/05/2017 12:53:45:
I presume what lathe manufacturers did (or maybe still do) was to temporarily fix the tailstock and head stock body together and bore/ machine all the mating surfaces at the same time. so that everything lines up on the bed. You presume incorrectly, Michael. Parts are made indvidually to tolerances & then "adjusted" on assembly to the required accuracy - that is what machine tool fitters are for ! Nigel B Well thank you for enlightening me, all I knew was that something else had to be going on rather than every component being made individually to nominal drawing dimensions and then miraculously hoping you would get a finished machine from this alone when you fitted them altogether! Michael W Edited By Michael-w on 18/05/2017 14:29:40 |
Thread: Is Knurling a health hazard? |
18/05/2017 14:23:50 |
Posted by SillyOldDuffer on 18/05/2017 13:21:52:
Even with well designed experiments, you still have to take care with the analysis: it's not unknown for scientists trained to avoid 'Confirmation Bias' and the like to blunder badly. As in 'Cold Fusion' for example. Dave I know this is a red herring but I would have to add that the cold fusion topic is not as dead and buried as you might think, the research simply carries on under a different name. Michael W |
18/05/2017 00:04:19 |
Posted by Wayne Ward on 17/05/2017 20:40:30:
I suppose that someone licking inordinate amounts of sweaty, knurled gym equipment might be at risk. Damn, I better kick the habit then. I always specify the extra coarse knurled grips as they're the juiciest! Michael W |
Thread: My models and our workshop |
17/05/2017 11:39:52 |
Truly marvellous, thank you for showing us and welcome to our forum! Michael W |
Thread: Just in case you run out of abrasive cutting discs... |
16/05/2017 17:59:54 |
Here I help.. Michael W Edited By Michael-w on 16/05/2017 18:01:02 |
Thread: Is Knurling a health hazard? |
16/05/2017 15:30:00 |
I mean, hygiene is important it's saved an awful lot of people but it shouldn't rule your life. Just a little bit of common sense attitude towards it and you're fine. no need to do anything else. I worked in a factory where my hands used to get a bit sore and they had this special green tape you can put round your fingers and it sticks to itself but it's not really tacky to anything else. To make a kind of "make-shift cast" around your finger. I would say most employers would do something about it if you found some sort of repetitive action on the shop floor was giving you gripe, they just aren't always aware of it. I'd like to see the man who could lift a 100kg weight by himself that would be enough to do the back in of most people, outside Arnold Schwarzenegger territory! Michael W Edited By Michael-w on 16/05/2017 15:33:19 |
15/05/2017 23:11:32 |
In theory we already have a gigantic bacterial colony living within all our innards, so anyone who claims to be totally clean is a hypocrite. Our digestion actually relies on this happening in order to bolster the immune system. Not only that but growing up on a farm would probably be a lot of fun for most kids, so they'd be more likely to feel well even on a bad day.
Edited By Michael-w on 15/05/2017 23:14:52 |
15/05/2017 21:19:12 |
Personally I've never really been bothered by it but I can see the logic in it, not only that but it just doesn't look very nice to make something and the knurl has already picked up a lot of dirt. I'd just use a wire brush, or acetone is supposed to be very effective at removing grease, Then I've heard about people who lacquer metal which has a knurl. Michael W |
Thread: Scraping Blue? |
15/05/2017 17:27:31 |
Hi Andrew, I believe the spray on stuff you're referring to is what's known as layout ink, it also comes in ink bottles, sometimes with a brush and it's precisely like you said, just for scribing lines. The stuff you want is stuarts micrometer marking paste, which is used to find contact points and high spots on surfaces for scraping. There's a link here to ARC, I bought a tin of it once but it seems they now sell in this tube instead. http://www.arceurotrade.co.uk/Catalogue/Protection-Grease-Adhesives/Engineers-Blue Michael W Edited By Michael-w on 15/05/2017 17:29:43 |
Thread: Home-made Screw Tap - Advice Please |
15/05/2017 11:45:59 |
looks like a proper job Dave, did you try the heating trick? I've noticed on the most recent article you wrote on the Arduino torsion meter, on your picture, that you have a bit of facial warping going on there? if I met you on a dark alleyway like that I might mistaken you for a roswell grey! Michael W |
Thread: Brazing gauge plate |
15/05/2017 11:39:08 |
Posted by Nick_G on 15/05/2017 10:53:37:
Posted by Michael-w on 15/05/2017 10:43:45:
I've had a 3rd degree burn before and they never fully heal !
Michael W . Was this heat on your brain caused by thinking. ??
Nick Cheeky monkey, well I know it certainly couldn't have come from the warmth of your heart! Michael W |
15/05/2017 10:43:45 |
Posted by Martin Botting 2 on 15/05/2017 10:05:28:
Thanks Jason. I will give it a go and when my burnt fingers heal (always do it after a session with the blow torch) i will post up some pictures.
You might want to be a little more careful, I've had a 3rd degree burn before and they never fully heal ! Michael W |
Thread: MEW 255 |
14/05/2017 14:22:34 |
Point was too sharp and no nose radius producing a torn and sharp finish. But we have to remember that he is using this sharp point to rough as much material as possible and therefore needs as much cutting action as he can as close to the tip as possible, a nose radius would be undesirable, for that particular purpose. If he was using a form tool then we could expect a much cleaner appearance. The point is that having a nose radius would produce a fillet where he might intend a hard corner. The radial movement combined with a wide round nose would produce undue stress and chatter on a small machine. Like Kwil said, was cleaned up with a file, in industrial practice they might have finished or just used with a form profile tool. As machinists I'm sure we can sympathise with this struggle. Michael W Edited By Michael-w on 14/05/2017 14:25:15 |
Thread: Rivnuts? |
13/05/2017 12:44:23 |
Posted by clogs on 13/05/2017 12:29:25:
Hi Bazyle, St/St fasteners bought in bulk are almost as cheap as Zinc plated......if you have too......look at Screw fix prices and let's face it most general fastener's are made in Asia anyway and nobody will admit it....... Clogs It can be surprising where things come from, I had an operation when I was young for little plastic rings fitted in my ears, they call them gromits. And I was only told about 20 years down the line that they were made in a factory in my hometown, one of only two suppliers in the united kingdom. Not only that, but I was working for them! They sold them to the middle man for about 20p each, then they put a mark up of about £80 to sell to the NHS, criminal really. But off the bat, i'd say most people would admit their stuff is made in Asia, they're just crazy keen on manufacturing I guess, unlike here, it's not so much the cost of making but the fact it's just become an unpopular thing to do in the UK. And the only people who do so, are the ones who break the mould. I've spoken to people who manufacture in a small scale china and they aren't exactly rolling in cash, infact they're probably just turning a small profit if not just turning over. They haven't really got it any easier than us. They just want to do it. Michael W Edited By Michael-w on 13/05/2017 12:49:19 |
Thread: Oh dear |
13/05/2017 12:26:47 |
Posted by Mick Henshall on 13/05/2017 12:18:03:
I am now eligible to join the local gang !! Mick the hairless  If I were in a gang I'd call you "stripe" Michael W |
Thread: Rivnuts? |
13/05/2017 12:17:00 |
I take it these are similar to the threadserts you get with a serrated flange for placing threads into thin sheet metal, they're very expensive I think, and me being el cheapo, I wouldn't have had the job to warrant it or luxury to peruse it! Michael W
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