Here is a list of all the postings ronan walsh has made in our forums. Click on a thread name to jump to the thread.
|Thread: Small thin hand files|
Aren't they called magneto files ? May help in your search.
|Thread: Gun screws|
Thanks Clive and Roy. Its a laminated steel barreled gun, hammerless. Thats whats stamped on the barrel bottoms. There is a proof mark on the barrel flats, but cursed if i can make them out, Ireland was part of the uk when this gun was built, so proof would have been compulsory, unless there was a special clause otherwise. Someone told me to use M4.5, as its so close it will make no odds, we'll see. Its odd that the gun trade never standardised threads as the cycle industry did for instance.
I was given a lovely old Dublin made side by side sidelock shotgun a few years back. Being busy i never did much with it, but now want to shoot it. One of the things i noticed however was the pin (screw) that holds the rear of the lockplates together, had stripped. Luckily the threads in the lock are ok.
Measuring the screw i get 0.1695 inches thread diameter and what i think is 36 tpi. I naturally assumed it would be a BA screw thread, but it seems not to be. The closest i can find is No.8 UNF.
Anyone happen to know what thread forms were used by gunmakers in the late victorian/early edwardian period ? Was it a case of using whatever taps and dies you could find, or coming up with your own thread cutting tools ?
|Thread: Internal Grinding|
I would suggest you send the to Alpha bearings in Dudley, but sadly Max Nightingale passed away recently and i don't know if the company is going to continue. They certainly could have adapted the bearings for you.
|Thread: Amelia Earhart|
Right then, where is Glenn Miller ?
|Thread: Oil for micrometers|
Thanks for the replies, i'll look into the clock and watch oil, its difficult to buy any oil near me, no more bicycle shops, engineers suppliers or decent hardwares. Thank gawd for mail order.
I have been given by people retiring, and bought over the past few years, quite a few mitutoyo micrometers, which i adore to use, I really like them.
Some are imperial, and while i use them reasonably often, the larger sizes don't get used as much. Taking a 4-5 inch mic out the other day i noticed it has seized slightly and was stiff.
When i get a mic, i normally wash the dismantled parts in acetone to get rid of the fluff and grit, dry them, and then oil the screws and barrels with some light oil like 3-in-1.
Its obviously is not good enough, what are you using ?
|Thread: Sulphuric Acid|
This is like most other knee jerk legislation, it will do nothing other than inconvenience decent people who have legitimate uses for these substances. It has gotten to ridiculous proportions, you can not buy Kasenite anymore because it supposidily contained cyanides, paint stripper that may make a good face cream, but it won't strip paint, paints with certain components no longer permissible, such as hammerite, which are not a patch on the originals, the list goes on.
The lowlife who chuck acid in others faces, will simply move onto other substances, really obscure and rare chemical compounds, like petrol.
They have also gone out of their way to ban .50 bmg rifles. To the best of my knowledge, no .50 bmg rifle has ever been used in a crime in the Uk. I believe you have a much higher chance of dying by a leopard/lion/tiger attack, a golfball, lightening bolt, than being struck with a .50bmg bullet.
Edited By ronan walsh on 22/06/2018 21:44:48
|Thread: arc euro trade email|
Thanks Brian. I got another quote today from simplybearings in Lancashire. They gave me a price of £130 + Vat, for a total of £157. These bearings though are the FAG brand which may or may not be better than the Nachi's. I don't know, i have some experience with FAG as we used to use them in work. They were good quality, but if they are better than Nachi is unknown.
Right, so i emailed about half a dozen bearing factors this morning in a hunt for these Nachi bearings for the Bridgeport mill quill. Only three came back to me, one said they will try to find them for me in the future.
Another local to me here in Dublin said they could get them in 2-3 days (i always take that with a pinch of salt), and quoted me a price of 140 euros+VAT, which i though reasonable.
But Kelly at Bearing Boys in Norfolk, came back to me with a quote of £89.91 for the pair plus £17.98 VAT, for a total of £107.89, plus the postage which i have yet to ask for, but i guesstimate at a tenner.
So very reasonable compared to the £300-£400 i assumed i had to pay to get this head back up to spec and in good order.
Pays to shop around, and thanks to all who helped.
|Thread: Help with fusion 360|
If you do a sketch, two lines joining the holes top and bottom, and two semi-circles going around the circumference of the holes, and then do push/pull, would that not do what you require ?
|Thread: arc euro trade email|
I had several ARC catalogues, but they seem to walk in this house for some reason. Anyway browsing online is as much fun.
No real inconvenience Ketan, just odd it won't work for me. Anyway, you are the very person i wanted to talk to. I am overhauling a bridgeport 2j varispeed head, and i am not happy with the state of the spindle bearings.
Doing a google search of the subject, i came across a thread on this very forum, in which you say your company can supply a quality Japanese made bearing of the exact spec needed for this application, that were substancially cheaper than the replacement bearings from bridgeport etc.
As the thread was about 5 years old, i wanted to ask if you can still supply these bearings, how much they cost, delivery etc.
No particular rush on my end, but if you could get back to me that would be excellent.
I have a severe speech impediment, that makes using the phone difficult, but thank you for your kind advice, must remember never to ask for help here again, from you anyway.
Just tried twice now, no luck. With all the "required" boxes filled in, the ones with an orange asterix, the i am not a robot box ticked, and send message clicked after that, the page snaps back to the top showing "* required". All boxes are filled in though, so i do not know what else it wants from me ! Copy of my passport and inside leg measurement maybe ?
Edited By ronan walsh on 08/06/2018 15:25:51
I tried last night, filling in all the boxes with an orange asterix, and at the end clicked the "I am not a robot" box, and then it reset itself. I will try again now.
Does anyone have a direct email address for Arc euro trade please ? I am attempting to contatct them via their silly online form and it does not work. A direct email would help.
|Thread: Exactly/The Perfectionists: How Precision Engineers created the Modern World|
I spotted this book in the local bookseller/newsagent today. Had a quick scan through it as its unusual to see engineering books in ordinary shops. Looks good, i'll pick it up and see is any good at the weekend.
|Thread: Motorcycle General Discussion|
Well triumph were always trying to get their bikes lighter than the competition, sometimes making their machines flimsy imho.
Looking forward to seeing the rest of your machine Bob.
Nice work bob. I bought a set of triumph tiger 70 crankcases last week, and was amazed how thin they are in places. No wonder they broke or cracked so often.
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