Attendees: TomK, EdK, JerryW, TomT, DmitriiZ, TimC, TomW, JoeD
DZ-working on polishing mirror. TomW later discussed CeO
compound he was using.
JD- showing key type wooden reinforced box method for wood
base of a telescope. Two wood triangles
sliced and glued into corner.
TimC – An email was sent to TimC from JavierR on July 21
“Tinkers Festival” need for telescope mirror making demonstration table. Two stations grinding, ronchi test stand, EdE
to bring a 4.5 mirror & scope, EdE to have poster of things you can make,
has another mirror w/ hole, fast F-ratio, to fit one table. TomW to bring 8” dob, plus tester &
sonotube for shade to allow seeing of patterns in bright afternoon light, he
will test at home to be sure.
TimC has list of telescope terms to hand out, but may be too
much?
Williams Bell still has some pitch & grit. Newport Glass melts glass still &
provides pitch, grit. Haywood, east bay,
National Abrasives is where TomW can get grinding materials. Clausing? does mirror coating. JD-Spectrum was not so good.
TomW would show kids mirror focal length by shining sun at
awning to see spot vs. handing out drawing.
TimC to make a source of material handout. Also chart of types of telescopes that can be
made.
Chuck McPartlin may have SBAU banner to use or Justin Canty
may provide some identification for Telescope Workshop?
DZ-could have series of videos going in a loop. TimC could bring small monitor vs. big SBAU
tv that was recently purchased for the observatory.
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