Next: INT f/3.3 prime
Up: Mechanical Mounting
Previous: WHT f/11 Nasmyth
- Mounting holes : The GHRIL optical table is 2500 mm long 1350 mm wide,
with an array of M6 holes on 25 mm centres in its SS top surface. The table
is mounted on three rigid legs (not vibration isolated) directly to the telescope
fork adjacent to the altitude bearing.
- Maximum mass and moments: The table itself is extremely rigid and could
support quite heavy instruments. However care should be exercised with point
loads as the table top consists of an epoxied SS sheet which dents easily.
- Clearances and volumes: The position of the focal plane/optical axis
has already been detailed. The full area of the table
is available for instruments, although a major restriction is the position
of the focus in the front corner of the table.
Tue Aug 15 16:42:46 BST 1995