We had two mirrors finish up this session, and as you can see from the photos, their makers are justifiably happy and proud.
Fran: 10" f/2 Spherical
Jeff: 10" f/5 Parabola
Dave & Jeff
At the Fletcher House
With Stellafane still snowed in, we met again at the Fletcher House in Chester.
Setting Up
Working Along
Class Stalwarts
Lectures
We had a lecture on Foucault testing for the mirror class, while the refractor group had a lecture on fabrication procedures and issues.
Ken Talks Testing
Phil Talks Lenses
Fringes
Grinding
It's late in course, so most students that are still grinding are using the finer grits to finish up this stage and then move on to polishing.
AlOx Ready to Go
Kayla & Rick
David
Claudio Grinds
Gary Chats
Gary & Tom
Laps
With many students moving on to polishing and figuring, lap making is increasing to support this activity.
Banished for Channeling
Ray & Dave
Two Nice Laps
Rick & Ray
Randy Presses
A Nice 10" Lap
Polishing & Figuring
Plenty of work in this area this session. With Fran & Jeff finishing up, a lot of careful final figuring was done.
Take Heed!
Fran Figures
Carl & Dave
Alex & Samantha
Exhausted from Pressing
Dave checks up
Testing
Testing is done in the lower game room at Fletcher House. We had several testers in use, two on 'rails' to help keep things lined up, and Dave's beautiful machined aluminum double-pass tester.
