Hi all,
As author of this article, I would like to add some “perhaps final” comments. I wrote this piece with the aim of comparing traditional and a newer method of centre finding. Hence the title “Any advance on the man with the sticky pin?” The safety of lasers obviously needs consideration as indicated in the article. However, my main thought was to indicate how useful to me these devices are compared to metal points. I rank my Laser Centre finder alongside the height gauge, surface plate and digital calipers as essential aids. I may be wrong, but as I see it devices such as sticky pins and wrigglers can only be accurate when the point of the tool is coincident with the centre of the shaft. True concentricity can only be formed and maintained by the accurate grinding of hardened metal. This sounds expensive to me and far above the cost of the average device. However, perhaps the results meet expectations or requirements. On the other hand, once my laser is centred on the axis of the spindle of the machine, the spot indicated on the work is accurately centred. Any views on this?
Who makes the choice of articles for ME and MEW? My comment earlier in this thread was to counteract the impression given in the thread by David Clark that he would not have published articles on laser centre finders. Subsequently, he changed to any more articles on laser centre finders; as an article on making a laser centre finder published in issuer 186 (Feb. 2012) was brought to his attention. My dissatisfaction in this arena arises from the fact that I submitted my article to David in May 2012 and on an enquiry in August was informed that he had the article and that it was destined for publication in MEW. So he had no objection to publication at that stage. On my second enquiry in February 2012, the article appears to have disappeared and he asked if he had acknowledged receipt. I keep all e-mails so could answer in the affirmative. To my mind this is a very cavalier approach by an editor to the intellectual property and work offered by contributors. Articles take a lot of time and effort to write and it is disheartening when they just disappear. There are a number of computer programmes that handle and sort references.
Fortunately, the choice of MEW or ME is now in the hands of contributors as there is no longer one editor for both magazines. My earlier comment on the care, efficiency and professional approach shown by Dianne to my recent offerings to Model Engineer gives a clue to the destination of any future work that I manage to put together.
Ah well, back to the workshop. I am just finishing my model of the Ransome and May mill engine and hope to show it at an exhibition at Hyères in October.
Ray Griffin