This is a toy tug boat I designed to make for my nephews and nieces for Christmas. I have a duel extruder on my Ultimaker so part 1 is one color and part 2 is the other. Its 165 mm form bow to stern but scales well. I have printed it at 30mm, 80, mm and 160mm. If you make one please post a pic. This is my first build so let me know what you think. V2 has sloped sides. V2 Updated 10/20/2014. Noticed deck walls at boats widest point were a little thin. V2 Updated 10/22/2014 removed gap between cab and deck. If you have trouble with model let me know and I will try to fix it.I printed with 15 % fill 0.8 mm wall thickness and 1.2mm top and bottom thickness. Not sure how well it would float with 100% fill. If you don't have a duel extruder for your printer you will want to download one of the whole models