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rpi 4 + sense hat, mechanical assembly

Posted: Mon Aug 12, 2019 11:55 am
by dpawson
Hearing of the heat issues I added a fan. 5V using usb.
Which necessitated stand offs, and ribbon cable.
Which meant a mounting system (styrene, 2mm).

Result is not pretty. It runs cool and works. Ribbon is M-F, oddly the connectors
don't fit in between the stand offs - pcb holes too tight (Eben?).

https://drive.google.com/open?id=1HxpJT ... mY3tTszmX shows the ribbon path
which makes the bodge even worse.

Re: rpi 4 + sense hat, mechanical assembly

Posted: Mon Aug 12, 2019 1:06 pm
by pcmanbob
Looking at your picture if you turned both plugs round the cable would come out on the outside, you could then dismantle one of the plugs and shorten the cable so as to reduce the spare cable left hanging out side the pi.

the cable would then follow the path shown by the yellow line

Image

Re: rpi 4 + sense hat, mechanical assembly

Posted: Mon Aug 12, 2019 3:27 pm
by dpawson
pcmanbob wrote:
Mon Aug 12, 2019 1:06 pm
Looking at your picture if you turned both plugs round the cable would come out on the outside, you could then dismantle one of the plugs and shorten the cable so as to reduce the spare cable left hanging out side the pi.

the cable would then follow the path shown by the yellow line

Image
Let me stare at the picture.... then make notes....
then try it :-)
Took me ages to figure out pin 1 to pin 1

Tks for the suggestion (pass it on to @rpi?)

Re: rpi 4 + sense hat, mechanical assembly

Posted: Mon Aug 12, 2019 5:39 pm
by dpawson
Yep, that worked.

https://flic.kr/s/aHsmG4HTF1

Once I'd got my head around the 180 shift :-)

Much neater.