Gam and Baffle Tube Thing Removal

Attendance Onkar, Gabriel, Shreyansh, Nathan, Meyer, Eric, Roy

Date/Time 11/30/22 12:00-6:00PM

Spaces Occupied: 401, Control Room, Dome

Goals

1. Dry run gam removal

2. See if baffle tube thing can be removed easily

3. get MAC addresses for the security cameras

4. instrument rotator installation plan (Dr. M + Erik)

Log

Gam:

1. just straight up removed it

2. used the erik gam removal apparatus to lower gam carefully down from telescope base to a lower position

   1. can be described as an elevator or forklift

   2. rule of thumb four people needed for this operation

      1. one on the apparatus brake

      2. one on the apparatus wheel

      3. two physically spotting the gam (holding its sides so it doesn't fall

3. carried physically to Meyer lab in 306 for cleaning and inspection

4. "scope without the GAM, the central black bit is actually a flange that holds the primary light baffle, which we have now removed." - meyer

Baffle Tube Thing:

1. also straight up lowered and removed

2. in Meyer possession to be cleaned aggressively with yard hose

3. when step 2 is done, obs experts (onkar, jackson, matt, tara, and/or natalie) will install flocking material and reinstall into telescope

MAC Addresses:

1. WIP, see comments from Roy and Gabriel

Instrument Rotator:

1. Will eventually be installed semi-permanently on the main axis attachment plate.

2. Is a HDR50/M Stepper Motor from Thor Labs (very robust, can handle large instruments).

3. Motor controller is BSC201 from Thor Labs. HEAVY. Current plan is to remove back GAM controller plate and attach the BSC201 to the plate with metal strapping before re-attaching the GAM control back plate. This keeps things tidy.

4. Also note: need to do a power audit if we want to plug a lot of stuff into the scope power supply.

Onkar and Eric will performe functions test of scope on Thursday at 10:00AM