Sounds great, Paul! If you'd like to do a bigger one, I still have that 16"
blank I wanted to grind to a sphere and pull into a parabola. :-)
Steve Dodder
Chairman, SAC Novice Group
Coordinator, Grand Canyon Star Party, North Rim
Director, Stone Haven Observatory
fester00@xxxxxxxxxxx
http://www.stonehavenobservatory.com
________________________________
From: az-observing-bounce@xxxxxxxxxxxxx <az-observing-bounce@xxxxxxxxxxxxx> on
behalf of Paul Lind <pulind@xxxxx>
Sent: Wednesday, January 15, 2020 9:31 PM
To: az-observing <az-observing@xxxxxxxxxxxxx>
Subject: [AZ-Observing] Idea for ATM meetings
Hi,
I'd like to know if anyone is interested in starting an 8 inch mirror-making
project at our regular meetings, the next being on Feb 4th. We could start
from scratch using a mirror kit I got from Dan Heim some years ago. The goal
could be to make a dual use scope: an f/4 Newt with a flip mirror diagonal
making it an f/16 Cass. We could do this during our regular monthly meetings
using my grinding machine, which will limit the amount of elbow grease. One
person would tend to the machine. Unfortunately it will make some noise. OR,
we could make something larger like a 10 or 12 inch but we'd need to buy some
glass.
See: https://pbase.com/paullind/mirror_and_lensmaking
Feel free to browse the other galleries.
Everyone's welcome, let me know,
Paul Lind
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