Just simple boat created for testing vase mode with Ultimaker Cura 3.2.0 and 0,6mm nozzle.
I used wood filament, but it should work with any PLA filament.
Added photos of 2:1 scale boat printed with 1,2mm and 0,6mm nozzle. Files will add in few days.
All parts are designed for 0,6mm nozzle!!!
Printing boat hull is a tricky job.
For best results use Ultimaker Cura 3.2.0 or higher. Boat hull is designed for using spiralize outer contour ( vase mode). Place file in vertical position, just like on photo, set 0,2mm layer hight, printing speed 35mm/s, minimum layer time 5s and bottom thickness to 1,4mm. It is very important to set bottom thickness to 1,4mm, otherwise you will get messy print. For best print results use extra cooling fan, specially on last 40mm of print. I used 50mm blower fan, some paper and 6mm diameter 150mm long straw. Make simple cone out of paper and use some tape to attach straw and fan to the cone. If you are using on your printer 50mm blower fan for cooling printed part, it should work without extra fan. Just set your fan to 100% speed.
Printing boat parts is easy job, just set first layer 0,2mm hight, rest of layers 0,15mm and enable ironing ( zig zag pattern, 0,4mm line spacing, 5% ironing flow ironing inset 0,3mm).
Print boat stand at 0,2mm layer hight.
If you are using wood filament, you can use sandpaper to smooth outer surface of boat hull and apply thick layer of clear coat to get smooth and shiny finish (optional)
At the end glue deck parts to the hull with CA glue. Boat stand can be assembled without glue.