I will try to find the etching article in my library. Our own Tony Moss is probably the foremost world expert in photo etching. He has uploaded a two-part video on you tube showing the process of etching a clock face with all the information one you would need to get started photo etching brass dials with ferric chloride.
I have been following in his footsteps and have succeeded in producing some very nice dials using this method. While I was perfecting my technique, I developed a "how to" document with detailed information including a list of materials and sources and an inventory of essential and optional tools. If anybody on this list wants to attempt photo-etching, I will be glad to share my how-to document, which is meant to be used a supplement to Tony's video. Jack Aubert -----Original Message----- From: sundial [mailto:[email protected]] On Behalf Of John Pickard Sent: Wednesday, August 13, 2014 7:24 PM To: [email protected] Subject: Michael Lee's Herbert Sun Clock in Model Engineer Good morning, While browsing the current issues of Model Engineer at my local library I found the following article: Michael Lee (2014) A world sun clock. Model Engineer Vol 212, No. 4480, 18 April 2014, pp. 574-578. VERY nice article about a SUPERB dial made to Alan Herbert's original design, and how Michael made it. I especially liked the fine detail achieved by etching the lettering and lines. Hand engraving has always scared me (way too skilled for my shaky hands!), so Michael's etching is a real inspiration. *********** In the same browsing session (the old fashioned kind of browsing: turning the paper pages of a real analogue magazine!), I came across a very nice detailed article on etching using photo-resists and ferric chloride. The instructions in the article may be of interest to list members: Neil Wyatt 2014 A step-by-step guide to photo etching. Model Engineer, 7 March 2014, pp. 380-384. Regards from a sunny but wintery cold Sydney, John Dr John Pickard --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
