(updated) Duplicator i3 b-cool

(updated aded a v2 50x50x15mm fan with a 3mm shorter opening .)

(update-- added a 50x50x15mm version for those that have that size blower)

here is my newest style coolers .

the b-cool line are for getting great overhang results and just an all around better print.

these are for 75x75x30mm and 50x50x20mm blower fans.