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: Inverter Rating|
Starting to look at inverters and wondered if there were any benefits (or indeed drawbacks) to using a higher rated inverter than strictly necessary - ie would a .75kW invertor be suitable for a .75kW (1Hp) motor or would a 1kW (or larger) be a better choice?
Edited By Nick Clarke 3 on 13/02/2019 19:08:45
|Thread: Thick walled copper tube|
As a different approach what about an external feed (between the frames??) to the blower and add an extra solid stay?
|Thread: One off castings|
But who would know where Il'son was??
Years ago, as a trainee, I stood in for the manager of Halfords there for a couple of months - I think the shop was at the bottom of Bath Street, next to the Post Office - it has taken me nearly a lifetime for it to wear off!!
|Thread: "Vintage" CNC|
As with the exception of the serial port which replaced the parallel port the Dragon was a clone of the Radio Shack (Tandy) Color Computer it inherited the graphics circuitry from that US model as well. It was not a case of building a better circuit but designing a different computer - hence the compromise.
In practice the graphics were not that bad in comparison to many other computers that used 4 colour low res graphics (CGA) or text only displays at the time. However I never intended to say that the Dragon was a better (or even good) computer - but rather that the BBC was the 'odd ball' A user who was skilled in modern style structured BASIC programming on a BBC would be unlikely to be able to transfer those skills to BASIC on many other computers.
Edited By Nick Clarke 3 on 10/02/2019 09:55:07
|Thread: Every Tea Room needs a toaster topic...|
But if you aimed it carefully it could shoot the finished sandwich directly onto your plate surely??
|Thread: One off castings|
While I have only spoken to them over the phone and not yet used them, Manor Foundry in Ilkeston were very helpful and I shall be using them in the near future. Quote "We do a lot of work for model engineers"
|Thread: Single to 3 phase invertor and smart meters|
What about the White meters in the 1960's - didn't they do just that??
|Thread: "Vintage" CNC|
Sorry Neil but I have to disagree with the comments re Dragon and BBC. While the BBC was a superb machine and I taught using them from their introduction until they were succeeded by PCs in the late 1980s (including in the end CAM using GCode), they were the non standard computers.
The BASIC interpreter used on the Dragon was a stock Microsoft one as used by MsDOS, IBM, TI, Dragon, Tandy (Radio Shack), RM, and many more. The version used on the BBC was only ever used on Acorn machines and while the strange integration of direct hardware instruction via the *FX and VDU codes was very useful and convenient compared to PEEKs and POKEs or calling a hardware interrupt, it was a dead end as far as computing is concerned.
Hardware was not very standard either - RS423 rather than RS232 serial port, 1MHz bus, non standard Parallel port implementation and the paging of application ROMS was all different to virtually every other computer.
A great machine (I still have a BBC Master here, for old times sake) but definitely non standard.
Edited By Nick Clarke 3 on 10/02/2019 08:51:54
|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?
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