This is a cooler for delta printers. I designed this type of cooler since I thought most coolers where hard to fit to my own printer plus in most cases, they made it impossible to add other accessories such as auto calibration probes, etc.
This cooler consists of 3 parts. First the effector extender which is basically a ring that enables the user to add as many accessories as needed. Second, we have the adjusters. These were designes to regulate the height of the cooler, to fit any printer as well as as to enable the user to move the cooler in the horizontal plane to fit any custom needs. Finally the cooler itself, which provides a very nice tangential flow of air which means that the amount of air that touches the hot bed is minimal (minimising the risk of the printing part getting loose). This current of air will mostly cool the filament being extruded.
Just fit the mouth of the radial fan (which should have a size of 50x50x12) into the tip of the cooler and you should be good to go.
Effector Extender x1
Cooler Adjuster x4
Tangential Cooler x1
M3 Screws x 8
M3 Nuts x 6
Printed with PLA @ 190C. I would recommend to first print it at a very low speed 20%, and then if the top of the cooler got bent a little (since it has no support underneath and lack of cooling) just install it anyways and print a second cooler with the cooling running, this should make the second iteration look better.