Cool Gt what usb hub are you running ? i dont notice it or did you build your own ? ive been thinking about modding my hub and changeing it all to run in a small case with good air flow also hows the s7 running with the filter on the fan did that change the temp a decent ammount or no ?
The USB hubs are from modmypi, they are a "hackable" 7port hub, come with power supply and USB cables for £5.99 each. I got two for the cable management of the gekkos and to spread the load. Didn't want to have six cables spread around the thing when getting two meant they are contained on the one side. It manages to run the raspi3 without getting the little colour square of doom which was a concern. But the raspi is connected to the hub at the back corner with a short and thick lead (18awg) I think which is ample for the pi.
The atx psu is underneath and out the way. I was hoping for slightly tidier cables but I may well revise it again yet.
The filter is just aquatic filter foam from the local aquatics centre. It doesn't stop all the dust so I've found out but it stops the majority. The temps rise about 3degrees with it on, but I struggle to keep the temps over 55c anyway so the extra 3degrees is helpful.