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--- Begin Message ---Hi Don, Glad to help! Herewith are two extreme examples 1. Cast stainless steel gnomon for Melton Mowbray Rotary Club which had additional cross bolts in the twin 12" tenon tips. "It will be in the river inside a month!" the pessimists said and that was 10+ years ago.... and it is still in place. ha ha!! 2. The brass dial is one of the very last pair I will ever make and it is for my granddaughter's school. It shows my preferred method of gnomon fixing to plate with SS taper pins. I now have many of these now surplus if you need some. Bridgeport Milling Machine donated to a Model Engineering Club and all chemicals poured away. I may still design sundials but others will MAKE them. "All good things come to an end!" :-) 3. Fun but not recommended! ;-) Cartoon drawn just after my initial retirement from dial making. Regards, Tony P.S. Can't seem to attach images to this email so will send separately. T. ----Original Message---- From: d...@ee.wustl.edu Date: 17/05/2017 19:58 To: "tonylindi...@talktalk.net"<tonylindi...@talktalk.net> Cc: "Donald Snyder"<dsny...@wustl.edu> Subj: Re: mounting a gnomon to be thief proof Hello Tony, Your comment on the sundial list about making a gnomon that is thief proof is timely for me. I'm involved in making a horizontal dial to be dedicated around the time of the total solar eclipse that occurs here (Saint Louis, MO USA) on Aug. 21. The dial plate is about to be made. I am meeting next week to discuss making and mounting the gnomon. My idea has been to have a tenon at the bottom of the gnomon. The tenon would go through a mortise in the plate and be secured using a support plate screwed to the bottom of the tenon. There is still some time to reconsider this approach. I am wondering if you have a couple pictures you could send me of the approach you describe in your note posted to the list. I'd appreciate any comments you might have about this. Don Snyder member NASS website http://dls-website.com On 5/17/2017 2:30 PM, tonylindisun--- via sundial wrote: Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die eigentliche Nachricht steht dadurch in einem Anhang. This message was wrapped to be DMARC compliant. The actual message text is therefore in an attachment. --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
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