use a 25mm fan.
to mount on endbell
I used 3x10mm or 12mm grub screw.
redrill and tap the mounting plates for 3mm screw.
after motor is reassembled. insert the grub screw
with about 4mm stickout for the standoffs to
screw on to. then install the fan.
or if you have a long enough 2.5mm screw
to go all the way through the fan and standoffs.
HB WCE HARA EDITION CYCLONE: LRP Sphere TC, KO 2363 digital servo.
HB HARA EDITION PRO4: Gone to a new home..