P  a  u  l  ' s
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Here's
one of the last mechanical design projects I did at NCR before changing careers to Technical Writing.

My responsibility was to design this unit seen at left, a disk array sub-assembly which slid into NCR's 3450 (a floor-standing computer server).  There were a total of five drives, and each had to align with and plug into the PC-board backplane. (Each of the drives were in yet another subassembly with plastic glides.)

This array subassembly as a whole slid into the server. If you look carefully at the right side you can see two of the four (clear) plastic slides which aligned the array assembly into the computer's frame.

 




 

 
If you look even more closely at the upper guide, you can see one metal clip (near the front, with a screw in it) of which there were eight, used to locate and secure the subassembly once inside the computer's frame.

Additionally (and to further complicate things!) there was a controller board (PC board, not pictured here). It slid into the thin compartment on the right which has card guides in it. And I gave it a thin retaining cover (shown installed here, w/2 screws) to hold it in place and also to act as further RFI/EMI shielding.

This unit pictured here is a pre-production model with both production parts and parts made in the Model Shop (particularly the plastic glides, as they were clear... Production plastic would've been solid in color).


 

 

 

see my
first part


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