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LBT Q3 2007 Engineering Review

The LBT Q3 2007 Engineering Review highlights significant developments concerning swing arms and ongoing engineering challenges. All swing arms are operational, but the right secondary arm experienced a preload mechanism failure, while the left M3 arm's preload has been properly set. Important updates include changes to PLC current limits, the completion of the schematic port, and the schedule for preload settings and wiring. Key issues include vibration measurements and manpower availability affecting telescope time. Progress includes a prime focus commissioning plan and improvements on swing arm preload and shock absorber designs.

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LBT Q3 2007 Engineering Review

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  1. LBT Q3 2007 Engineering Review Swing Arms (SWA)

  2. Highlights (Q3/2007) • All the swing arms are on! • The right secondary arm broke its preloadmechanism • The left M3 swing arm had its preload set • PLC current limit changes • Schematic port completed • Current Status: LBT Q3 2007 Engineering Review

  3. Open Issues • Technical • Vibration measurement • Schedule • Time to set preload on SX AS • Time to wire DX M3 • Time to fix DX AS • Financial • None • Resource • Mountain manpower availability • Telescope time getting taken away arbitrarily LBT Q3 2007 Engineering Review

  4. Progress (Q2/2007) • From Planning at last review: • Come up with a Prime Focus SA Commissioning Plan • Mostly done • SX AS Swing Arm Preload • Scheduled • SX M3 Swing Arm Preload • Done • Finish Shock Absorber Design • Done • More GUI testing • In progress • Replaced galled pin in SX M3, which made the awful noises from the bearing go away. LBT Q3 2007 Engineering Review

  5. LBT Q3 2007 Engineering Review

  6. Planning (Q4/2007) • Commission Prime Focus Swing Arms • SX AS Swing Arm Preload (Depending on telescope availability) • DX M3 Swing Arm Wiring (Probably Q1/2008) • More GUI testing LBT Q3 2007 Engineering Review

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