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: 7/8" x 5 tpi acme threaded rod|
The thread is right hand, which makes things slightly easier. I would prefer to keep the same size thread as the original as the dials would be miles out otherwise. I suppose i could use a dro but was not intending to. Thanks to all for the links, i will either email or ring them over the next few days and see what i can chase up. The nut i can make up myself. Whats the best brass/bronze for that ?
Bought a Jones and shipman 540 surface grinder recently, its old but complete and in good condition overall. However the crossfeed screw and nut are worn, which i have been told is usual, as the powerfeed "kicks" the screw when powerfeed is engaged.
They are available from jubilee mac, for nearly £600 ! So i want to make a new screw and nut. It would make life easier if i could buy the threaded rod rather than having to screwcut one.
Anyone know where i might be able to buy threaded rod in this size ?
|Thread: Notre Dame|
I am from Ireland, and while yes a tiny minority of the catholic church did horrific things, a huge amount of them did hard and good work in working class areas, often for very little thanks or recognition, and was one of the glues that bound society together. But as usual the majority pays for the sins/crimes of the minority. Is the bbc a paedophile organisation because of savile, harris etc ? They were getting huge salaries from the taxpayers, to produce rubbish programmes and rape youngsters.
Nearly any group who have been around for a long time has questions to answer, no more than the royal family, look back a bit at the dreadful way people who displeased them were treated during the last thousand years. The bloody tower, hanging drawing and quartering, pitch capping, the rack etc. The royals under Henry the eighth, profited hugely from the catholic church when he seized their lands and property.
No group should be free from criticism, but if you are going to sling muck, please sling it equally.
As for the cathedral, what a terrible thing to happen to such a historic and wonderful building, terrible, just as it would be if St.Pauls were to have burned during the blitz. Notre dame is owned by the republic of France, So it is their property and they are responsible for the damage repairs.
Wasn't that the place in Birmingham, well between Birmingham and Coventry ?
|Thread: V Way. regrinding|
Jubilee mac in Derby ? I know they recondition surface grinders, might be worth a phone call, or they may be able to put you onto someone who can do what you need.
|Thread: Scaling dimensions|
Well it will be upscaling i will be doing most likely, i see a design for a simple steam engine, but its a bit small for my machines and i prefer larger models anyway.
Is scaling a drawing up or down a simple matter of multiplying or dividing the given dimensions by a set figure, say 2x or 4x ?
Or is it as i suspect more involved than that ?
|Thread: Jones and Shipman 540 Dripping|
Black puddin' and tripe ? These soft modern types don't know the joy of a good fry-up with plenty of black and white puddin' and a load of fried bread. You might live longer by not eating food like that, but i cannot think why you would want to
|Thread: Trends in Radio Ads|
Pity, as its a good station. I also like radio 4 xtra. Especially if they are doing really old stuff, Sherlock Holmes stories, Hancocks half hour, Parseley sidings, The navy lark etc. The modern stuff is too blue and too crude.
|Thread: Further thoughts on Fusion 360|
Yes when i was starting fusion, i followed lars videos too. Coming from solidworks, i found some of the ways of fusion odd.
|Thread: Nickel/German Silver|
The only thing i have ever heard German silver or nickle silver being used for was the famous grills on rolls royce motorcars.
|Thread: Micrometer woes|
Mitutoyo tools are excellent, but their boxes are rubbish. The cream coloured boxes that their micrometers come in are extremely brittle, i have several where they have cracked or broken, leaving the tools open to damp and dirt, not good.
The felt in the micrometer boxes, is in the lid, and yes i have several that have turned to crumb rubber, leaving the mic covered in little black specks.
I also have a metric mitutoyo depth mic, that came in a nice wooden box. It was in perfect shape, but i went to use it one day and was disgusted to discover the depth rods covered in rust. I had to clean them off and some were pitted. Things like wood and felt absorb moisture and rust tools.
Someone told me mothballs in tool cases resist rust, or maybe things like vp90, as used in gunsafes and things like that.
|Thread: Free Electricity|
Yes i did that too, making crystal sets. Ladybird did a little book on it, all the bits held to a piece of pine board (pre-mdf) with brass screws (remember them) and screw cups. I believe pow's made sets using a piece of coke, which was scratched at with a wire until a signal was received.
Kids don't make things like that anymore, they sit gawping at mobile phone screens now.
|Thread: Criterion boring head threads|
Thanks Tim. The link won't work on my computer, but it does on my phone,
Yeah , i think you are correct.
Tim, thanks for the link, but it does not lead anywhere.
Emgee, yes i meant to type 1 1/2", seems to be a standard size with boring heads.
I bought a used criterion boring head online yesterday, and am waiting for it to get here. The head is a 76mm/3" one, but has a bt40 shank on it. I want to order an r8 shank for it, would anyone happen to know what threads criterion use on these heads ? I want to get one as soon as possible, does 1 1/4 x 18 tpi sound right ?
|Thread: Lovely old surface gauage on ebay - how to make it!?!|
Looks like an apprentice piece to me. Very well made, probably made back when engineering skills were appreciated by society.
|Thread: RDG or Myford ER32 collet set?|
I bought an er32 r8 taper collet chuck from rdg in november. It was marked myford. On inspection it seemed ok apart from the nut was stiff on the body of the chuck. The first time i used it was holding an edge finder. Found the edge and swapped for an end mill, 4 or 5mm in diameter. Took the cut and went to change to a larger tool, the nut slackened off a quarter turn and siezed solid.
I took the whole thing out of the machine and sent it back to myford. After about a week i emailed them and they told me the reason it seized was i did not know how to use it, the collet had sprung in behind the nut, which couldn't be removed, and they were returning it to me at a cost of £13 !.
Despite the myford name, i reckon they are the usual Indian tat, the nut and the body of the chuck were similar in hardness, galled and seized.
I won't be buying anything with the myford name on, and no more from rdg.
Buy a vertex, or a good, european, american or japanese brand, or see if you can find one second hand on ebay or here.
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.
Click THIS LINK for full contact details.
For subscription issues please see THIS LINK.