5015 down+2mm and alternative.

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** all parts for BMG dual gear: https://www.thingiverse.com/thing:3684921 **
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Modified 5015 blower part lowered 2mm to the bed.

90 degree fan cover for the protect part the air movement.

https://www.thingiverse.com/thing:2808683 remixed.
and part of
https://www.thingiverse.com/thing:3354741 (bmg direct drive for stock Ender-3 head)