Free 

This is a remix of sekazi (on Thingiverse) Ender 3 5015 + CR Touch model but allows the use of the stock metal mount that comes with the CR-touch. You can also utilize a 4020 or 4010 fan and sekazi (on the Thingiverse link below) has a great cover that works for the 4020 fan size.
https://www.thingiverse.com/thing:4969462












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