How to 3D print a surfboard with a basic 3D printer?

I tried to 3D print this surfboard after I found a 3d file online. I have an old Prusa MK3 printer which I used to print the 46 files needed to complete the board. I used Recycled PETG filament.
After glueing all the pieces together I laminated en hotcoated the board with epoxy.
Link to 3D file: www.thingivers...