The file 'Flight Club PrOton Fin 3D Printer Model' is (stl) file type, size is 186.3KB.
This is a design for a slide in shark fin for the prOton (old one, not the new R).
Designed it for a friend so I haven't personally tested the effectiveness of the fin part but the slide and screwing in mechanism works flawlessly.
Print at a 45 degree angle with the slide mechanism on the bed. No supports needed.
PrOton_Fin_v1.4.stl | 477.4KB |