turning the fan?

[orange]

I had an idea after those problems with bad smell. How about turning the PSU fan so that it takes air from outside and blows it into Amiga? That way we could put some filters on it to stop dust from comming inside.
IIRC some ATX PSU used such design.

Temperature probably wouldn't be a big problem as Amiga doesn't heat up a lot?

[X-ray]

You will still get the bad smell because the air that goes in will displace the smelly air out: it has to come out, or else you will be trying to turn your Miggy into an air-compressor.
On my A4kt I have smelly SCSI cables because I once taped them together to make them neater. The adhesive from the tape remained on the cables even after I removed the tape and it smells terrible now. I will have to thoroughly clean them because despite running the case open for a week and blowing all the dust out (even from the PSU which I opened), it still has the same smell, namely that of a camel's armpit.

[orange]

I see. But, the smell would be less concentrated, right?

Why don't you use elastic, rubber band for keeping wires together?
 :-)

[seer]

Why don't you use elastic, rubber band for keeping wires together?

Rubber bands dry out and can break/snap. This wouldn't be too much of a problem in most Amigas, but a piece could drop in a fan. Depending on the size of the rubber band, the fan might not work then.

[X-ray]

Seer is right. That is exactly what happened. The rubber bands dried out then snapped. I found them in the bottom of the case, looking like earthworms that had dried in the sun. What I should have done was get proper cable ties. I might do that once I've finished jerking around moving drives from one controller to another, swapping drive bay positions etc.