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LBT Q3 2007 Engineering Review

LBT Q3 2007 Engineering Review. ALPC – Primary Mirror Aluminum Shooting. Highlights (Q3/2007). Aluminized DX for the second time The coating did not pass the tape test The process did not pass the “keep liquids out of the mirror cell” test. Open Issues. Technical

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LBT Q3 2007 Engineering Review

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  1. LBT Q3 2007 Engineering Review ALPC – Primary Mirror Aluminum Shooting

  2. Highlights (Q3/2007) • Aluminized DX for the second time • The coating did not pass the tape test • The process did not pass the “keep liquids out of the mirror cell” test LBT Q3 2007 Engineering Review

  3. Open Issues • Technical • Documentation for Aluminization System from OSU improved but needs more work • Upgrade of Aluminization System • Cleaning/Stripping System • Glow discharge ? • Locking devices unreliable • Crane needs to move ~1 meter farther forward to safely clear adaptive secondaries • M3 swing arms need to be retracted farther than normal to clear belljar • LBT personnel can do most of the process now, as long as nothing goes wrong • Something always goes wrong • Schedule • Aluminize SX August 08 (not 17 Aug) • Financial • None • Resources • How much effort do you put into medium priority tasks? LBT Q3 2007 Engineering Review

  4. Progress (Q3/2007) • From last review: • Aluminizing in Q3 • Done • Belljar Stand Modification (to occur during aluminization) • Did not happen – no manpower available LBT Q3 2007 Engineering Review

  5. Planning (Q4/2007) • Nothing planned for Q4 LBT Q3 2007 Engineering Review

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