You mean like this?Ask yourself which is worse- some fins broken off on a clean cylinder, or the between fin areas of a cylinder packed with oily sawdust and general filth?
On a secondhand saw you are very likely to find the latter- which certainly does not help to dissipate heat- but usually the saw is still running.
Been running saws for 50 years and that's the worst I've seen, manYou mean like this?
This old Mac didn't burn up and there was probably less air flow than a mouse fart getting to the fins.
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