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Cooling solution for Plane Power Alternator

Sure, here's the files, it's for the B&C L40 alternator and it mates to a 1" scat hose. I printed it in two parts so that the bulk of the part could be printed flat without supports. Just glue the curved piece on when finished. Stick it to the alternator with your RTV of choice (my preferred RTV flavour is Dirko HT) .

Like I say, no attempt at airflow optimisation. I just needed something quick that would force the air into the back of the alternator, directly through the existing cooling holes.

alt2.png

Also, a little scoop to get ram air into the 1" scat hose, file attached.

scoop.jpeg

The heat shield is just a rolled piece of aluminium with two brackets made from strips of stainless (0.5mm probably), mounted to the exhaust with jubilee clips. It's much the same as Spruce sell, very simple.

shield.jpeg
 

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That is cool (pun intended) and totally safe... However.... There was a Cozy that had a 3D printed air inlet. It worked for awhile, than did not. Due to heat it collapsed and pilot had loss of power. The cooling shroud is not as critical as air inlet.

I am not a 3D printer expert. What printer filament (PLA, PETG, ABS, TPU) should be used?

Looks like wall thickness is sufficient. Thanks for sharing your CAD work.
 
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