Photos

Below some PreCam related photos. Check out also the Art Gallery.

Grounding and ESD

Grounded pump

Lots of wrong things and ESD promoters in the photo below. Don't keep metal in the carpet.

Detail of grounding system connection to the CS

Detail of telescope grounding using the black wire.

Where to hold the new flat wire for the camera grounding

The big picture

New Grounding configuration (2010 Sep 17)

The box was temporarily tied to a flat wire connected to the metal mat.

The telescope grounding wire is now connected to the body of the telescope via a flat wire screwed in its bottom.

The mirrors

Through the aperture

The old secondary mirror

You can still see the support for the new secondary mirror to the right.

The old secondary mirror is a folding flat - to serve the old eye-piece in the Newtonian focus - and is hold at place by the metal piece in the lower-right part of the mirror.

The piece that holds the secondary flat at place apparently has room for regulation.

The focal plane viewed from outside the secondary mirror hatch with a powerful zoom.

Tip Tilt

Oscar Saa shows Douglas Tucker the art of tip-tilt in the Curtis-Schmidt

Curtis Schmidt Building

The telescope at service with vacuum pump.

Then...

Now,

New PreCam Grounding Braids (2010 Sep 22)

Greg Tarle, Oscar Saa, and the two new PreCam grounding braids (one from the PreCam VIB to the Monsoon Crate and the other from the Monsoon Crate to the telescope):

Location of the bolted connection for the one braid on the PreCam VIB:

Location of the bolted connection for the second braid on the telescope:

Note: there *was* a braid from the back of the Monsoon crate to the telescope, but this was removed to avoid a grounding loop; here is a view between the Monsoon crate and the telescope *after* the original braid was removed: