eB Fan shroud for Ender 3 / CR10. Prints w/o supports. Reverse flow cooling.

thingiverse

This is a custom-designed fan shroud for my Ender 3 printer. It will also work on CR10 series printers. The design is intended to be printed using PETG or ABS materials. The hot end cooling fan draws air upwards and away from the print, reducing heat transfer. A simple duct directs airflow from the part cooling fan. Easy access around the hot end allows for effortless cleaning and nozzle changes. A zip tie tab keeps hot end wiring organized. Print orientation places the flat portion of the cooling fan on the bed. Prints are completed without supports. Recommended infill is 50% density. This design is compatible with Micro Swiss hot ends. Required hardware includes: 2 M3 x 20mm screws for mounting to the hot end 4 M3 x 16mm screws for mounting the hot end cooling fan Optional hardware includes: 4 M2 x 16mm screws for part cooling fan mounting 4 M2 nuts for part cooling fan mounting 4 M3 heat inserts for hot end cooling fan mounting The initial release is version 001.