This is the cooling blower mount I've been using with pretty good success with the Smartrapcore Alu printer. It is specifically fit with no adjustment as primarily I was having issues of it falling down over time. Pair this with a standard blower to get a pretty decent air stream across the nozzle exit of an E3D V6 hotend.
CAUTION: This is very close to the E3D V6 hotend heater block and therefore requires the use of an E3D silicon sock. Without the silicon sock, the hotend will melt and deform the cooling blower.
The flag on top of the blower is being used as an attachment point for all my hotend cabling.
I was hesitant to publish this design considering it's highly customized and fit against my exact printer build that uses my E3D Titan Direct Drive for Smartrapcore. There is also another version I'm using that works with my Flexion for E3D Retrofit kit for E3D Hotend for Smartrapcore thing which is longer due to the different position of the hotend nozzle.
Works best in ABS or PETG or some other higher temperature material. Printed on the side with the flag facing down. No supports required.