9" longboard fin

thingiverse

A 9 inch deep standard longboard surfboard single fin that fits in sliding fin boxes on longboards. Print the port and starb halfs with the flat side on the print bed and then glue the two halfs together. Sand the fin and then fiberglass it (the fin was made to have 1mm of composite material on both sides). Finally, drill a hole in the pilot hole on the base and then compression fit a pin through the hole.