Pitch laps can age, and we like to salvage the substrate to use for a new one. A few minutes in the snow makes the pitch brittle, and it can be chipped off in a hurry.
Wayne cleans up Joyce's lap
Dave cleans off his old lap
The Patient Died
Dave pours a New 8-inch Lap
Dave makes a new lap
Adding Cerium Oxide
A beautiful new lap!
Joyce pours a New 6-inch Lap on her glass tool
Warming the Tool
Joyce pours pitch
The new lap cools
Removing the dam.
Pressing the lap into shape
Channeling
Polishing & Figuring in the McGregor
Scott, Fran & Dave
Tim works on his final figuring
Glenn's 10" Lap
Changes
Paul show the class a video about changes in optical production, and our new class leader, Jay, smiles out from a bunkhouse window.