Cabling up the stations, and assembling them onto the cage/big wheel


Detailed cabling procedures are here, and special tools you will need.


Disk 1 in assembly stand - build up: jpg, pdf

Note the arc that supports the extension cables. The cables are tied to this arc with thread.

Sheets can be attached to the exterior of this fixture, turning it into a storage and transportation box. FVTX top is on the left in this picture for the NW and SE quarters.

Disk 1 in assembly stand - ready to be lifted: jpg, pdf

The assembly has been turned upside down, and a lifting fixture has been attached that captures the edge of the disk, as well as the arc holding the cables. Note the four unequal-length legs.

Disk 1 in assembly stand - carried: jpg, pdf

Disk 1 installed in Handling and Assembly fixture: jpg, pdf

When the assembly is lowered into the Handling and Assembly fixture, the unequal legs come to rest on the edge of the carbon cage, and define the proper rotation angle of station-1. Station 1 can now be attached to the cage.

Cables are now attached to the ROC boards, threads to the carbon arc are cut and the lifting fixture can be removed.


Disk 2 in assembly stand - build up: jpg, pdf

Same procedure for Station 2

Disk 2 in assembly stand - ready to be lifted: jpg, pdf
Disk 2 in assembly stand - carried: jpg, pdf
Disk 2 installed in Handling and Assembly fixture: jpg, pdf

Note that as Station 2 is lowered into the Handling and Assembly fixture, the Station-1 cables (top right in this picture) need to be pushed out by a mm or so in order to let the Station-2 top attachment point pass.


Disk 3 in assembly stand - build up:
Note that the hoop is actually underneath the HDI connectors - we will do without a hoop for St.3.

jpg, pdf

Same for Station 3.

Disk 3 in assembly stand - ready to be lifted: jpg, pdf
Disk 3 in assembly stand - carried: jpg, pdf
Disk 3 installed in Handling and Assembly fixture: jpg, pdf

Push station-1 and 2 cables out of the way of the Station-3 top attachment tab.


Disk 4 in assembly stand - build up: jpg, pdf
Disk 4 in assembly stand - ready to be lifted: jpg, pdf
Disk 4 in assembly stand - carried: jpg, pdf
Disk 4 installed in Handling and Assembly fixture: jpg, pdf

Since the Station-4 cables are the least flexible, we can loosen the ROC screws a bit to allow for small movement of the ROC cards if the Station-4 cables need this wiggle room.