They may also be surprised to learn that subsequent to publishing a description in the British Astronomical Society’s journal, he wrote a constructional article, with plans, for Model Engineer, having decided not to patent it.
The basic design has since been refined but what is fundamentally John Wall’s design is now found on telescopes made by many different manufacturers.
John Wall’s original article from Model Engineer No. 3441, Volume 138, 19-31 May 1972 is reproduced here:
http://www.model-engineer.co.uk/wp-content/uploads/sites/4/documents/crayford_focuser.pdf
Hi,
I'm the editor of Model Engineers' Workshop magazine and, for my sins, one of the website admins.
I'm a model engineer, and in the past I have written for ME and MEW, but I won't claim any great stock of expertise, just plenty of enthusiasm. Before becoming editor I used to post on this forum as Stub Mandrel (and may occasionally still do so).
If you would like to find out more about me, my personal website is
www.stubmandrel.co.uk/ and I have an author page on Amazon at
amazon.co.uk/Neil-M-Wyatt/
Feel free to send me a 'pm' (message member) but these are a bit slow and clumsy, so if you would like to get in touch with me by email use
neil.wyatt@mytimemedia.com
If you want to send me a friend request, don't! Nothing personal – but I refuse all requests so I don't have to choose which ones to accept and which to reject.
I'm always glad to hear your views on the magazine, and particularly keen to encourage new contributors to 'have a go', so let me know if you have any ideas for articles.
I hope to hear from you soon.
Neil
