Perfect ABS Plastic Server Enclosure from Radio Shack

[MarkHaysHarris777]

   

Looking at the other side of the top bezel assembly, I'm preparing here to mount the power filter assembly ; the red and black leads are the power leads coming from the euler bus pin(4 5v+) and pin(6 ground). The system LED (on male-female jumper leads--purple) will protrude through the bottom front bezel, as will the usb0 keyboard|trackpad receiver.

At some point (not now) I will cut an opening in the bottom section for easy removal of the SD card.  For now, its locked in place-- I actually remembered to insert it prior to assembling the prototype the first time !

   

From this vantage point the in-line passive low-pass power filter is clearly seen. The filter is mounted on a type of plastic velcro (no fabric is involved).  The filter is 'stuck' to the pine board and hangs downward with the rest of the top bezel assembly. The euler bus power connectors are in-place and we're just about ready to drop the top assembly into the bottom ABS section.

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@pfeerick,  yes there is way plenty of room between the pine board and the fan mounting bolts, so I did not cut them.  I did glue them to keep the nuts from backing out and dropping on the board !

My motor speed controller actually has two phases which I have not documented here yet.  The first phase you have...  it runs the motor all the time 'slowly' with a 50hz  80% duty cycle ON. The second phase monitors the zone0/temp and bumps the fan speed by sending the process a -SIGHUP /  takes the fan speed to almost 100% duty cycle ON.  This occurs at temps above 55c should that occur.  When the temps drop back under 50c, then the second phase sends another -SIGHUP and the motor speed controller drops back to its normal 80% duty cycle ON.