Member postings for Cornish Jack

Thank you Michael et al.

Still puzzling over these things but it would seem that brushless DC is correct. An even greater puzzle is how some of you have search facilities which produce results that don't come up for me!! It's embarrassing 'cos it appears that I'm too lazy to do a search and rely on you kind souls to do the work for me - AND IT AIN'T SO!! So, please, guys, what is the secret? Search engine, search syntax, insider knowledge ... what??

Rgds and thanks

Bill

Again, many thanks for all the helpful suggestions - have to admit that some of the more esoteric advice joins reactive loads as 'knowledge gained'!!

This, obviously, item in question opened up . There are 12 separating pieces and rotation of the shaft is 'lumpy' - seems to correspond to the number of separations (haven't counted them!)

Resistance measurements (on an AVO digital meter) are :

1-2 - 6.76 ohms

1-3 - 6.80 ohms

2-3 - 6.79 ohms

Will follow up some more of the above advice and report back

Rgds

Bill

PS - just had a look at the allegro site and that is the same item. Just a quick brush up on my Polish (aaargh! - AWFUL pun in there somewhere!) and Robert is Dad's brother

Rgds

B

Edited By Cornish Jack on 13/03/2013 11:19:16

Many thanks, gentlemen.

I get the feeling at times that my particular Google/Yahoo/ whatever search engine is/are different to everybody else's!! I am embarrassed to find that my searches reveal zilch when others strike gold! Anyway thank you all and there are some useful tips there to pursue. I'll report back when complete. I actually have a tray of 50 of these things (cannot now remember why!!) so if they are useful it will be worth the investigation

Rgds

Bill

... and all of the foregoing explains why, when teaching aircraft electrics to flight crew, if anyone mentioned reactive loads, the response was short, sharp and (as long as no ladies present) quite rude!! Life is too short!

Rgds

Bill

G'day all.

Photos are of one of a number of motors which I have just re-discovered!! Unable to find any relevant info on the Web and would like to know what input would be correct and what connections should be used. Dimensions are approx. 1" diam and 2.5" long.

Any help much appreciated.

Rgds

Bill

Jason - a bit off topic, but please check your PMs ... sit down before reading!!

Rgds

Bill

Good thread to let off steam (appropriate for MEs?) however as one whose workshop contains ONLY secondhand UK machinery my view might be construed as biassed. I DO have a Far Eastern device - a cross vice (much to be cross about!!) which is nicely accurate to the nearest inch or so - entirely suitable for my skill level.

Re. Ady's boast of VW excellence - hmmm - I have a VW Passat, lots of bells and whistles and an electronic control module which lives in the passenger footwell. VW's cunning design team arranged that the drain tube for various functions, when blocked, vents into this space and renders most electronic items unuseable - 400 quids worth of repair!! I also, once, owned a Morris 1100 and was puzzled to notice (after 6 months ownership) that the rear view mirror was reducing in area ... the roof lining was unpeeling and eventually separated entirely - great British products!!

As for managers - their function is ??? I do not know of ANY manager whose role is CUSTOMER satisfaction and that, most unfortunately, includes our NHS lot - hence recent Shock, Horror stories.

I am, of course, open to correction.

Rgds

Bill

Jason - old news indeed.

W/C 'Taff' Holden was the Senior Eng Officer at Lyneham and (for reasons best known to himself!) was conducting an engine run in a Lightning on the (short!!!) out of use runway. The aircraft was minus its bang seat and IIRC he was perched on a box!! He, inadvertently, took the engines through the reheat gate and it jumped the chocks. Deselection didn't work, the runway end was rapidly (very!) approaching so he pointed the thing skywards. He had, apparently, completed a very basic flying training course some time previously and the adrenaline no doubt helped to get the beast vaguely 'under control'. A couple of somewhat 'interesting' circuits and he managed to get it back on terra firma.

As I recall, it was to be about 5 years later that he suffered the repercussions of his little adventure - what is now termed PTSD. Mind and body combinations can be uncontrollably weird - I speak from personal experience - wouldn't recommend it to anyone!!

Rgds

Bill

"65 bid retractions in 6 months"!!!!!

Bid retractions are the other version of shill bidding. Bidder makes his max bid, SELLER then bids until the original bidder's max bid is exceeded and then retracts his(her) last bid. Result - original bidder has been forced up to his max bid by shill bidding. Answer - if ANY bid retraction is noted, contact seller and point out that your ONLY valid bid is the one which preceded the FIRST of the retracting bidder's bid. Alternatively, point out that you will not complete any sale which has included a bid retraction ... have done both of these and the responses were 'interesting'

Rgds

Bill!

"I have used ebay for years and whilst it is true there are a few things against it, the bidding system is fair in my view"

MattK - the bidding system MAY be fair but the OP's thrust is in respect of shill bidding, and that is not only unfair, it is illegal. Even without private listing, it is difficult (but possible) to detect shill bids. With bidders being allowed anonymity, corruption (read THEFT) is almost guaranteed.

Rgds

Bill

Mind-boggling stuff!

Super photographs and a real sense of atmosphere. As one who was never blessed with contact with 'proper' engineering, am I naive in thinking that the radial arm drill in the 11th photo down is a bit 'overkill' for the drill bit in use?

Rgds

Bill

Andyf

"Annual rotation is probably in order," ... ummm ??

Rgds

Bill

"Hi, I believe the private listing is to help buyers identity from others to protect them from making their location more difficult to be revealed, thus cutting down the likelihood of being potentially burgled or hounded to resell."

Sorry Nick, but I'm afraid that is nonsensical. There is nothing in normal user name listing which would allow access, either on-line or actual. All private listing does is hide the identity of the bidder in order to allow shill bidding. An indicated bidder identity of e.g. a***n (33) which is the usual format contains nothing of use to the 'baddies'.

As for trusting Ebay to look after buyer's interest - to quote LBSC ... "Nuf sed"

Rgds

Bill

All quite interesting and, yes, 'snipe' bidding makes sense BUT it doesn't have anything to do with the OP's query!.

The problem is, as he says, EBay allowing 'Private Listing'. All this does is offer open house to shill bidding. Since this was introduced, I am even more careful about whether I bid on an item or not. Unless the item is 'can't do without it' , any appearance of Private :Listing, means that I will not bid. There is NO valid reason for bidder identity not being available, other than shill bidding - and that is not only against the EBay terms of reference, it is, I believe, ILLEGAL in this country. Oh, and I KNOW that it does happen. CAVEAT EMPTOR indeed!

Rgds

Bill

In the aeronautical world, undoubtedly true.

Just finished reading two books "The Quick and the Dead" - Bill Waterton's account of high speed flight and as Gloster's Test Pilot and "Winkle" Brown's extraordinary story of his mind-boggling range of aircraft - fixed and fling wing - flown. Waterton had a distinctly jaundiced view of the designers (or their reluctance to heed PRACTICAL advice). Winkle, on the other hand, just leapt aboard and got on with it - and, on occasion, nearly didn't stay intact.

Fascinating reads, if you're into that sort of thing

Rgds

Bill

Tried the usual QCTPs but found I never had the right tool fitted or enough holders. My present setup is ONE 'swing-over' toolpost which has a built-in screw adjuster for centre height and takes little longer than the QCTP method. At my snail-like working pace, anything else would be pointless.

Rgds

Bill

Two possible methods - balsa wood of the approximate diameter can be screwed into the thread to leave an impression which can be checked with thread gauge or get some Fimo modelling 'putty', oil the thread and press the Fimo in to fill the cavity, remove and bake in the oven. The latter will give you a very strong, accurate form.

Rgds

Bill

The military have never been shy about destroying surplus assets. In many cases it would have been part of the original contract. For instance, when the Vampires/Venoms were being phased out, due to obsolescence, the contract required that the remaining aircraft, of the number contracted for, had to be modified up to front line standard, test flown and THEN had a buzz saw put through them before going to the scrappy! While it would have been different during active wartime conditions, I would have thought that the local commanders would have taken the simplest measures to avoid them going to the enemy, by destroying them. If offered shares in a recovery programme, I think the prospectus would go into the 'Brooklyn Bridge for sale" folder.

Stuart

SWMBO 'treated' me to a pair for Xmas. (she hasn't 'divvied'up yet. either!) Procurement could have been better done but they arrived eventually. Thoughts? Not bad (damning with faint praise?) but even with my ham-handedness I can generate equivalent finishes with other less expensive tooling. All relative, of course, since my best finishes are usually equal to other's roughing cuts. Re. sharpening, yes, easy-peasy with the supplied guide but I also have a set of Myford inserted round tool holders which are equally simple and done off-hand. Recommend???? They won't make you into an instant Jason B or Ramon Wilson (for example) but if, like me you have difficulty off-hand grinding tools and you can afford the outlay without sacrificing something important, then give it a whirl. I got both left and right hand but , in retrospect, the left hand version would have probably been sufficient.

Please note this is PERSONAL opinion only

Rgds

Bill

As a 'metal mangler' I have no valid opinions to offer on machinery qualities - I know what suits my quite definite limitations. However, I can view forum contributions as useful, helpful, supportive etc., or, as in the case of this thread, self-opinionated, trolling drivel! The former category would most definitely include Ketan, JS (not least for the irreverent humour!), NJH et al. The latter, yet again, as in a previous thread, offers nothing but vituperation and self-aggrandisement of a type more usually associated with the moronic 'cult of celebrity'. Trolls on all forums seem to get their kicks by trying to induce irritation in the rest of us. Unfortunately the above-mentioned good guys are feeding this oaf and his over-inflated ego. My advice from the swarf-swamp - ignore the **** (expletive deleted)

Rgds

Bill