The file 'Geeetech MK8 BlTouch Circular Fan Duct 3D Printer Model' is (stl) file type, size is 31.2KB.
For those who want to use a circular fan and a BlTouch sensor at the same time on a MK8 i3 Extruder. Successfully sliced with Cura 2.3.1 and printed with Anet A6 for a Geeetech Prusa i3 pro B.