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This is what I use for cooling and it works very well

https://www.thingiverse.com/thing:1246425
https://www.thingiverse.com/thing:2253654

This also does not block your view

Then I modified an LED mod to this
https://www.thingiverse.com/thing:2810574

All printed in PLA
lots of print time on these so far, no issues.

I would also do all the other things that re recommended by others int his thread.

Also keep in mind that Every Roll of filament may/will act slightly differently.
You will need to adjust based on each roll
there is no "one settings fits all" mode.

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