2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15
by Jay Drew
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December: The Halfway Point
Class moved into Fletcher House for snow season (no snow yet!). This is session 3 of 6, the halfway point. Most students have made it to polishing or figuring, and it looks like we should have a good number of completions before class wraps up in April.
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Dylan, Ray and Ken hold up one end of the test tunnel as we move it up from the basement.
Test Tunnel in motion
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Ken hands off the tunnel to Dylan and Ray who squeeze through the door to the main room.
Almost In
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Tim brought an old scope in to collimate, and we tested the mirror. Nice figure, smooth, no edge, it looked very good to us (but this photo is not well focused).
Nice 10-inch Mirror
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Jay has been figuring the club's 16-inch mirror. Here, Dave is using a Ronchi tester to check it.
Club 16-inch
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
This is Dylan's very nice, deeply channeled 10-inch lap.
Dylan's Nice lap
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
George is working with #220 on his 12-inch mirror.
George's 12-inch
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Always cheerful Jay is having fun while grinding a 10-inch mirror.
Cheerful Jay
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
In the basement, Keith is trimming the edge of his new lap using a razor blade and mallet.
Keith Trims His New Lap
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Paul and Read at work on their mirrors.
Paul & Read at work.
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Paul brought in the Foucault tester base he made for some advice on smoothing the motion (embossed lettering on the push bold head was grabbing the wood).
Paul's Tester Base
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Ron is concentrating on his polishing in this photo.
Ron is Polishing
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Student Ray is getting plenty of helpful advice from Ray and Dave as he polishes.
Ron, Ray & Dave
2012-13 Stellafane Mirror Class Session 3 held on 2012-Dec-15December: The Halfway Point
Ray looks at sunspots in Jay's solar scope in the parking lot.
Solar Viewing
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