2013-14 Stellafane Mirror Class
Session 2 held on 2013-Nov-02

Grinding

Grinding was done in and around the pavilion mirror lab on a nice fall day.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding In the pavilion Mirror Lab: Francis, Antoine and Read.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding Jessica works at beveling her 8-inch mirror.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding Kenny leans into his grinding.
2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding Kris watches as Francis checks her sagitta.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding Tamir uses weights to speed his grinding.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding Kris' 10-inch tool is made of pink dental stone.
2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding Ray and Read check their focal lengths using the reflected sun, and Jessica watches them do it.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding Ray uses his mirror as a sun ray gun, but super hero Jay seems impervious to it.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Grinding A view of the mirror lab through an internal window.

Laps

George re-poured over an old lap, as shown below.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Laps George has poured a new pitch layer over his old lap. It looks whitish, which is cerium used to ensure the mirror won't stick while pressing.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Laps George channels his renewed lap outside the pavilion, and Winter keeps him company.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Laps The fall sun warms up the black lap pretty quickly as it rests on the foundation of the McGregor Observatory.

Polishing & Figuring

Polishing & Figuring was done in the McGregor Library.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Polishing & Figuring The McGregor Library being used for Polishing and Figuring.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Polishing & Figuring Doug holds his 10-inch mirror.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Polishing & Figuring Dave is figuring a 6-inch mirror.
2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Polishing & Figuring George warms his lap for a hot pressing session.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Polishing & Figuring Cerium Oxide is smeared over this mirror before polishing or figuring.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Polishing & Figuring Tamir's new lap still needs to be trimmed around the edge.

Mirror Class Work

A new test tunnel is being made for our off-site mirror class, and at the end of the day we packed up to move there.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Mirror Class Work Ray begins work on a new test tunnel.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Mirror Class Work A few hours later, and progress on the new test tunnel is apparent.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Mirror Class Work At the end of the day, grinding stands are loaded up for transport to our winter home in Chester.

Around the Site

As always, a lot goes on besides mirror class on mirror class days, here is a sampling.

2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Around the Site A clear fall day on Saturday morning at Stellafane.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Around the Site Jeff applies protective oil to the club's new Bridgeport mill as we prepare it for winter storage.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Around the Site John installs new doors on the dome we currently use for storage.
2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Around the Site These pavers are still curing and will be installed next spring.	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Around the Site Kai looks at solar prominences in a PST	2013-14 Stellafane Mirror Class Session 2 held on 2013-Nov-02 Around the Site This is what Kai saw, including the tree branches in front of the sun.