Spinner Sprite Đơn Giản

This spinner works well to show when and how fast the filament is being extruded.  

This can be printed in PLA for a snug press-fit onto the Ender 3 S1 sprite extruder shaft.

Very simple print; prints in a few minutes.

Recommended material:  PLA

Layer height: 0.12

Infill:  100 %

Update:  The number of arrows (triangles) has been reduced to three to avoid the stroboscopic effect of the low camera refresh rate; where the aliased video makes the spinner appear to rotate backwards or not at all!