Grinding at the Bunkhouse
The new class is enthusiastically working away, making good progress on grinding both
inside and outside the bunkhouse, on an unusually balmy late fall day. |
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Jay talks about Grit |
Fine Grinding Explained |
Randall Bevels |
"The Porch" |
"Sag" Check |
Tom checks in |
Rick |
George & Rick |
Cleaning Up |
Elizabeth grinds |
Steve |
Isaac & Jeremy |
It's the Pits
Checking the pits to see if you are done with a grit is a frequent activity in fine grinding. |
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Jay checks the pits |
Grit Display |
Side-by-Side Pits |
Solar Observing
Many of us took a short break from mirror class to do some solar observing. There was one very large sunspot that was either splitting or merging, and it was quite a treat to see. |
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Schupmann on the Sun |
Full Aperture |
John Observes the Sun |
Brad Observes the Sun |
Brad at the Eyepiece |
Solar Monocular |
Pitch Laps
We poured a few pitch laps this session, although we only have photos of one. |
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Preparing the Mirror |
Wayne melts Pitch |
A New Lap |
Is it cool? |
Channeling |
Jay stirs the Pitch |
Plaster Disks
To be ready to make pitch laps next session, several students had plaster disks poured, allowing plenty of time for them to cure and dry. Tom is our "Plaster Master" and shows how it is done. |
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Ingredients & Tools |
"Plaster Master" Tom |
Mixing Plaster |
Pouring Plaster |
Interviews |
A Big Plaster Tool |
Machine Grinding
Wayne & Jeff refurbished the grinding machine last year, now they are using it on a 16" mirror. |
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Wayne adds Grit |
Wayne adds Water |
Nice Spherometer! |
Polishing, Figuring & Testing
Fran, Joyce, Eileen & Scott were polishing and figuring this session.
Scott completed a very fine mirror today! |
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Paul demonstrates |
Eileen, Joyce & Scott |
Fran's 12" |
Nice Lap & Case |
Dave Tests |
Scott is Done! |
Miscellaneous Goings On
A few random shots of other things happening at Stellafane this day. |
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Firewood for the Winter |
Jeff & Randall |
Dave & Ken |
The End
With three photographers and lots going on, this 45 photo album is the biggest we have ever published. Hope you enjoyed our photo journal for the day. |
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