Jet engine extruder motor rotation indicator

An extuder motor indicator made from a _3D Printable Jet Engine's_ fan by **CATIAV5FTW** - scaled down to 25%, with a cone or without.

Link to this awesome printable jet engine here: https://www.thingiverse.com/thing:1327093


**There are three versions:**

With an **integrated cone**, with a separate cone with a **spiral strip** and **without a cone**. Each of them has a separate version with a brim around blades as the ones without a brim proved not printable for me - as they were lift