I designed this blower style fan mount to fit my Mini Kossel with magnetic effector but may work on ball link style as well. The fan mounts use the stock extruder retaining clip mounting holes.

The design requires a 5015S blower fan. I have used 5v(via fan output on ramps up to 75-80%) & 12v with success but they also make a 24v.

There are similar designs available for this type of fan but none are nearly as compact or adjustable in the X, Y and Z axis like this one.

Also required are 3 25mm M3 bolts and nuts for mounting.

5V 5015S Blower fans available at:

http://www.amazon.com/Vktech-Brushless-Cooling-0-1-0-3A-50x15mm/dp/B00EL938E6/ref=pd_cp_pc_0

12V 5015S Blower fans available at:

http://www.amazon.com/Black-Brushless-Cooling-Blower-5015S/dp/B008P72QYS/ref=sr_1_3?ie=UTF8&qid=1425794238&sr=8-3&keywords=5015s+12v

24V 5015S Blower fans available at:

http://www.amazon.com/Connector-Brushless-0-15A-Blower-Cooling/dp/B00H8VV0XK/ref=pd_sim_sbs_pc_4?ie=UTF8&refRID=1GR1FYDEPSPD28QRV8GR