iRocker SUP Flip Lock River Fin

I wanted to be able to take my iRocker Cruiser down shallow rivers without the worry of smashing up or losing the supplied rigid fins as well as reducing the likelihood of performing a surprise superman off my board. iRocker uses a proprietary fin box design so there aren't many options out there to purchase for this application. And so my maker mind went to work.

You'll need to print a mirror image of each base. Also, I printed the pin separate so I could orient the layers for strength.

These were printed in two materials:
The base halves and pins are printed (solid) in carbon fiber filled PLA from SUNLU
The flexible fins are printed (70% triangles, 3 layers and 3 perimeters) in polymaker PolyFlex TPU95