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Message ID: 11     Entry time: Mon Oct 3 17:21:39 2022
Author: Cao 
Type: Update 
Category: TCS 
Subject: Inspection of macor parts 
The macor parts arrived and inspected today. These include:
  1. Macor spacer (drawing: LIGO_Redesign_Macor_Spacer_Drawing_v4.pdf attached below), quantities: 40
    • No defects, damages observed
    • Parts are free from grease/ machining fluid
    • Wall thickness of 1 mm appear to provide sufficient stiffness to part
    • Images of parts: Macor_spacer_0.jpg, Macor_spacer_1.jpg
  2. Macor 5-40 UNC screw (drawing: LIGO_Redesign_Macor_Screw_Drawing_v6.pdf attached below), quantities: 20
    • One screw broke, location of break: should edge between head and shaft (see image Macor_screw_5.jpg )
    • All other screws look ok, no damage observed, clean surface overall
    • Images: Macor_screw_0.jpg , Macor_screw_4.jpg
Attachment 1: LIGO_Redesign_Macor_Spacer_Drawing_v4.pdf  146 kB  | Hide | Hide all | Show all
Cannot create thumbnail, please check ImageMagick installation
Attachment 2: Macor_spacer_0.jpg  8.038 MB  | Hide | Hide all | Show all
Macor_spacer_0.jpg
Attachment 3: Macor_spacer_1.jpg  1.930 MB  | Show | Hide all | Show all
Attachment 4: LIGO_Redesign_Macor_Screw_Drawing_v6.pdf  141 kB  | Show | Hide all | Show all
Attachment 5: Macor_screw_5.jpg  2.720 MB  | Show | Hide all | Show all
Attachment 6: Macor_screw_0.jpg  1.218 MB  | Hide | Hide all | Show all
Macor_screw_0.jpg
Attachment 7: Macor_screw_4.jpg  1.711 MB  | Hide | Hide all | Show all
Macor_screw_4.jpg
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