Hi Carlo, Thanks for your reply.
Regards, Roderick Wall. "Helios Sonnenuhren (Carlo Heller)" <[email protected]> wrote: >Hi Roderick, > >thank you. > >The globe screen is made of acrylic glass (PMMA). This is the best >plastic material concerning the weathering-resistance. My Subsolaris is >13 years old now and is still good-looking and precise. > >Kind regards > >Carlo Heller > > > ><http://www.helios-sonnenuhren.de> > >Am 05.04.2015 um 04:16 schrieb rodwall1234: >> Hi Carlo, >> >> The reflection dial is lovely. >> >> Question: What is the expected life span for the projection screen when >> placed outside in the rain, snow and sun. >> >> Regards, >> >> Roderick Wall. >> >> Dave Bell <[email protected]> wrote: >> >>> Carlo, that is a beautiful dial and seriously interesting concept for a >>> reflecting design! The manufacturing process is very clever, with the laser >>> and NC machining of the spherical dial face. Perfect for automating the >>> localization and any customization required. >>> >>> Is the concave mirror stainless steel? It appears as if your process >>> measures the focal length after polishing. >>> >>> Can you customize your design for outside of Europe? I'd be tempted to >>> enquire about one for California, but I suspect the cost would be outside my >>> budget. :{) >>> >>> Dave >>> >>> -----Original Message----- >>> From: sundial [mailto:[email protected]] On Behalf Of Helios >>> Sonnenuhren (Carlo Heller) >>> Sent: Friday, April 03, 2015 11:18 PM >>> To: [email protected] >>> Subject: Re: Reflecting Dials >>> >>> Dear Claude, >>> >>> if you are looking for reflecting dials other then ceiling dials this >>> dial may be interesting for you: >>> http://www.helios-sundials.com/Helios-Sundial-Gallery.html >>> >>> Kind regards >>> Carlo >>> >>> >>> >>> --------------------------------------------------- >>> https://lists.uni-koeln.de/mailman/listinfo/sundial >>> > --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
