Because who doesn't want a sharkfin, especially if it means you don't have to kill a shark to get it. Round bottom has a slot that fits a 2.5" web belt and a curve so it should sit flat on an AL80 tank.
Flat bottom has no slot and a flat base.
Scale them down to 78% to fit a Prusa Mk3 when printing the fin vertically. The web slot gets too small if you go smaller.
Sharkfin_Flat_bottom.stl | 2.0MB | |
Sharkfin_Round_bottom.stl | 2.2MB |