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--></style></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt;font-family:Palatino'>Hi Collin, Josh,<br><br>Sounds exciting. I have a Geiger Counter that I can use to check your titanium truss tubes if you like. </span><span style='font-size:12.0pt;font-family:"Apple Color Emoji"'>😊</span><span style='font-size:12.0pt;font-family:Palatino'><br><br>Looking forward to seeing Josh’s new Foss Hill Observatory.<br><br>---Dwight<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:Palatino'><o:p> </o:p></span></p><div><div><p class=MsoNormal style='margin-left:.5in'>On 4/7/25, 8:54 PM, "CMAS on behalf of Colin Caissie" <<a href="mailto:cmas-bounces@maineastro.com">cmas-bounces@maineastro.com</a> on behalf of <a href="mailto:cscmachinedesign@gmail.com">cscmachinedesign@gmail.com</a>> wrote:<o:p></o:p></p></div></div><div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:.5in'>Recent test report here. I don't 100% trust the readout, but it's good enough to put a coat of silver on it and load it in the scope for star testing. It went from about one wave error to 1/4 wave when I silvered it and tried it out at the Maine State Star Party in 2023. Wasn't perfect but boy did it pull in the light with the fresh coatings.....Silver is about 97% reflective, and with the secondary also silvered, it was like an 18" scope. Now, it's smooth and should be fun to use.<o:p></o:p></p><div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:.5in'>So, this mirror needs to go into a more portable 16"f/4.5 scope for outreach, my PreCambrian truck may not be in service, and the original MEADE Starfinder 16 dob OTA and mount is just too heavy and is failing.....There are designs for compact portable dobs, and the idea of a tracking equatorial base is exciting. We have all the materials for all of this. The titanium truss tubes I suggest came from the spare seawater condenser from Maine Yankee Plant 20 years ago. <o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:.5in'>We checked out the fit of the new motor mount for the Foss Hill roll-off roof drive and need to drill a few more holes. Josh and I gave it the OK. Then it snowed on us. WE have had large star parties in the old days, especially when we offered food and beverages, so maybe a GALA OPENING with barbecue (STARBECUE) could be a big kick for CMAS membership and involvement. <o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:.5in'>The building and site is impressive and could draw a huge crowd. Josh mentioned camping...Wow. Organizing is not my forte...I'm just a member...<o:p></o:p></p></div></div><p class=MsoNormal style='margin-left:.5in'>_______________________________________________ CMAS mailing list CMAS@maineastro.com http://maineastro.com/mailman/listinfo/cmas_maineastro.com <o:p></o:p></p></div></body></html>