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--- song_spectrograph_assembly [2025/05/30 17:49] – 172.59.0.80
+++ song_spectrograph_assembly [2025/05/30 17:55] (current) – 172.59.0.80
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+====== Spectrograph assembly guide ======
 ===== Room requirements/setup =====
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       - rotate far diagonal to direct towards diagonal under collimator for all positions of far diagonal
       - adjust diagonal under collimator to get beam in collimator.
-{{ :spec:collimator.jpg?direct=300 }}
+{{ :spec:collimator.jpg?direct=400 }}
   * With aligned collimator install flat (grating flat, FM2, and FM3 on table in desired location. Also install prism mount for convenience before adding upper table. For each of the three flats:
@@ Line 85: / Line 86: @@
       * laser should be in center of white beam on table; if not, something is not right!
       * put flat mirror on table at beam, look for reflected laser at laser source, adjust diagonal down-pointing mirror until laser reflection returns exactly to laser.
-{{ :spec:upper.jpg?direct=300 }}
+{{ :spec:upper.jpg?direct=400 }}
   * Install slit to ensure focal plane is at desired height above optical table