Here is a list of all the postings Nick Clarke 3 has made in our forums. Click on a thread name to jump to the thread.
|Thread: LBSC 3 1/2 Britannia|
Don't bank on it - there are numerous examples of errors that are still in the drawings you buy - in fact correcting an error by changing a drawing might be seen as a breech of copyright - it was not how the original guy designed it etc etc.
More practically it might be dangerous for a supplier to change drawings on the word of a constructor without checking that it wasn't they that had made the errors.
My favourite error is a solid boiler stay that is threaded backwards into the backhead and at the same time forwards into the smokebox tubeplate. 1/4" diameter rod with 1/4 by 40 threads. Go install that!!
Edited By Nick Clarke 3 on 07/02/2019 21:25:25
|Thread: Trends in Radio Ads|
Its a funny thing but although a sucker for most radio comedy (except Hancock - I don't know why) I cannot stand either waking up to talking or listening to talking in the car so Classic FM is the choice. However my brain seems to self protect and after a few hearings the Ads, while annoying to listen to at first, seem to me to become blanked out after a few listens - Sensory mediation I believe it is called.
|Thread: Threading a bar for 6ba|
I have the set that IanT suggested and second his views.
Have a look at Tracy Tools website, or if you are at Doncaster Show pick up one of their catalogues. - usual disclaimer - just a satisfied customer - other suppliers are available etc etc
|Thread: J A Radford; Improvements and Accessories For Your Lathe|
They are available if you click on the features tab on the black toolbar at the top of the page and then go to Magazine reprints
|Thread: Mystery optical device|
There is only one (very obscure) colour photographic process - Lippmann - all others, film or digital record images in mono, which may later be dyed or filtered to give colour.
If anyone is interested the book 'Colour Photography' by the late Brian Coe is a fascinating history of film colour photography.
|Thread: Who was W.J. Hughes|
There is a brief obituary of W. J. Hughes by Martin Evans in the Model Engineer Volume 143 No 3565 15-31 July 1977 and a bit fuller appreciation by Arnold Throp (also from Sheffield) in the next issue No 3566 5-18 August 1977.
W.J. Hughes also wrote under the nom de plume of 'Northener'
|Thread: Picture upside down|
At least that would work - turning the screen upside down when projecting an image seems to be a little less effective!
|Thread: Progress No2 GS Pillar Drill|
Might even be a part number on the outer race?
|Thread: Old Lathe|
I'm remembering the picture of the Drummond on ebay spares or repair that you mentioned. The spindle should have been solid but had been drilled at some time and the end had now snapped off.
Will drilling your tailstock barrel weaken it? Was it left solid to save on a manufacturing process, or for good design reasons?
I don't know the answer, but I would wish to be certain before doing anything irreversible.
|Thread: boiler blowdown|
Before you try to apply local heat (fortunately where a blowdown usually goes you are likely to have the option of oxy acetylene) you need someone to check there is no soft solder, including HMP stuff like Comsol on the boiler or you will certainly wreck it as has been suggested. Get an expert (club boiler inspector perhaps?) to go over it, and give you the all clear to proceed.
|Thread: Measurements from the past|
The original definition proposed was based upon the length of a pendulum with a period of one second, however the first to be formally adopted was equal to one ten-millionth of the distance between the North Pole and the Equator.
As a result of reading this discussion I have read the fascinating Wikipedia article on the Metre. Worth a Look!
(Sorry if your definition of fascinating is different to mine but I used to be a physicist )
|Thread: Commercial boilers|
What suggests to you that one might not?
|Thread: Measurements from the past|
Found this on the InterWeb:
The number describing a pin size is the length of the pin in sixteenths of a inch. Thus a #17 dressmakers pin is 17⁄16, or 1 ¹⁄16 inches long. The diameter of the pin depends on the type.
Pin sizes are at least a couple of centuries old. An English author writing in 1804 states:
Pins are distinguished by number; the smaller are called from No. 3, 4, 5, to the 14th, whence they go by twos, viz. No. 16, 18 and 20, which is the largest size. Besides the white pins there are black ones, made for the use of mourning, from No. 4 to No. 10.¹
1. Benjamin Tabert.
The Book of Trades, or the Library of Useful Arts. Part III.
London (1804 or 1805).
Reprinted Jacob Johnson, Whitehall (Philadelphia), 1807. That edition was reprinted as Early Nineteenth-Century Crafts and Trades by Dover Publications in 1992. The passage quoted occurs on page 42.
No I don't really understand either.
|Thread: Planned Obsolescence|
You could even say it was good engineering to adjust what Apple could control to manage the behaviour of what they could not.
Me defending Apple - What IS the world coming to!!!
|Thread: Nylon for axle boxes ?|
I can't add anything to the question of suitability of nylon for axleboxes from experience. I suspect it may deform under load.
However my experience does tell me that it is easier to machine metal to a good working finish than nylon which tended to whisker and score badly the one time I tried it.
|Thread: Drill Doctor 750SP|
Sorry to go off topic but why do we not send something back or chuck it, but instead put it on a shelf or under a bench in case it miraculously heals itself if left alone. I am in the midst of a clearout and one dump run bootfull was items just like these.
I think I am just too stubborn to admit defeat!
OK guys sorry for the rant - back on topic now.
|Thread: Planned Obsolescence|
I agree that sticking with Windows (or Mac or Linux whatever) is a plan, but in my opinion sticking with means upgrading hardware and software as necessary.
Unfortunately if you bought say AutoCad in 2003 to run on Windows XP staying with that version and expecting a new printer to work with your computer is hopeful to say the least.
And upgrading one part - say the printer and expecting am XP driver to be written for you new product, or running Windows 10 and hoping a 15 year old printer and 15 year old software to work on it is just silly.
Financially sad to say any computer system will need regular, often unfeasibly expensive, updates to continue to work.
Edited By Nick Clarke 3 on 04/01/2019 17:38:26
But don't all products have a design life? - certainly it is foolish for business to expect people to be able to buy a product once and never again isn't it? A 2003 vintage Toshiba laptop upstairs now is not used because it cannot have its memory expanded more than its current 512Mb (it came with 128Mb) and the operating system, Windows XP needs more that 512Mb to run well. It was not booby trapped or anything, only designed to run the day it was made and with what expansions and update that could be predicted for X years - I suspect X was about 6. It had built in obsolescence after that time, presumably because to allow infinite expandability and upgradability would make it too expensive and complex for the market - and Toshiba would not be able to sell a new laptop as well.
Looking at just two of the things you suggest - I manage a number of printers - some have timers in consumables that will only allow a certain number of pages to be printed - built in obsolescence. Others start to print badly - you shake the toner cartridge and print a second copy OK. The first has built in obsolescence, but all the copies it prints are good while the second is a hassle and wastes time and paper. The other example that makes me think is a car without rust protection. I had to drive a Moskvich pickup in the 1970s that had cost the small firm £431 new. It rusted away while you watched, but a more expensive vehicle could not have been afforded by the company. Planned obsolescence or an engineering solution to 'How do you provide a vehicle to transport fridges at next to no cost?'
I think one problem is that in the past many products were ridiculously over engineered and our expectations have risen to suit. My hundred year old project Drummond round bed lathe is an example. The Chinese mini lathe on the bench won't last that long, but I don't think it should, and I certainly couldn't have afforded it if it had been designed to do so.
Edited By Nick Clarke 3 on 04/01/2019 17:36:47
Its not just planned obsolescence - the life of many things is far shorter that we would like them to be - only cars made after 1992 HAD to be able to run on unleaded fuel and leaded was banned in 2000 (and LRP which never really became reliably available in 2003) so an 8 year old car might not have any fuel in 2000. What about analogue TV? What about Analogue mobile phones? all of these were not a lifetime buy but became unusable after only a few years.
I suppose we expect things like a computer system to last forever - and they basically will provided that nothing within the system changes.
Unfortunately new software versions, supplies and consumables, cables, peripherals and anything like the internet form part of a computer system, and these all change so unless you stay completely isolated adding nothing and needing nothing so must we all too.
Planned obsolescence is a fact of life in the computer world - look at this link (down the page) and you will see the planned dates for different versions of a Linux distribution stretching forwards to 2028 at present.
The latest version, still in development is only planned to last until the end of 2020.
This is at least honest and up front - I am certain that a similar timeline exists for every operating system, only Linux (Ubuntu) seem to be able to tell you about it up though.
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