2012-13 Stellafane Mirror Class
Session 2 held on 2012-Nov-10

In the Pavilion

Grind, grind, grinding away in the Pavilion.

2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Ken, Pete & Bob outside the mirror lab in the pavilion.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Pete got a chip along the edge of his mirror, and is smoothing it out with diamond files and a stone to relive stress and reduce sharpness.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Read is rough grinding.
2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Jeff is on his third grit, using #220 with a good spherical surface. The device behind him is a wood drying "kiln" powered by an incandescent bulb.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Keith is up to 25 micron grit, and his mirror is starting to feel "buttery smooth" when touched.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Ron is up to 9 micron, and should be polishing by December.
2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Cecilia (on bench) and Bob are working as team on this 10-inch mirror.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Bob is using a diamond file to smooth out a small chip on his mirror.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Pavilion Ray is using the sun to check the focal length of Bob's mirror. Notice the focused spot on the big blue fork.

In the Bunkhouse

Lap Making, Tool Making, Polishing and Machine Work.

2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse Dylan is polishing. Here he is setting up his lap on the barrel.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse Paul is polishing his 6-inch with mirror on top.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse George (back to camera) and Dylan in the bunkhouse.
2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse Jonny is using a fine aluminum oxide grit on his 6-inch mirror.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse Jeff (Jonny's grandfather) using a machine on a 16-inch mirror.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse 16-inch mirror and a sub-diameter, weighted tool fine grinding.
2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse The grooved tool is a thin, soft piece of flint. It is resting on a plywood stiffener.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse Using pitch as pliant adhesive, the flint tool and plywood backer are now one.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 In the Bunkhouse A silicon rubber lap mold is used to form uniform, deep channels in pitch.

Around the Site

Some solar observing and other miscellaneous activities.

2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 Around the Site Francis is viewing the sun though a solar scope outside the bunkhouse.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 Around the Site Outside the bunkhouse, George looks through a solar viewing equipped refractor.
	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 Around the Site This is our site manager's dog, Winter, who is always exuberant.	2012-13 Stellafane Mirror Class Session 2 held on 2012-Nov-10 Around the Site The so-called "LOL" dome, stored behind the pavilion. Ken checks the hold-down blocks, which were installed for Hurricane Sandy.

In the McGregor

There was some activity in the McGregor with figuring and testing, but we did not get any photos to share with you.