https://www.youtube.com/watch?v=EPUpRDnPodY After over 3000 hours of almost continuous printing, I decided to turn off the Ultimaker 3 Extended for a much overdo cleaning and maintenance. Surprisingly, after belt examination, pulley examination and tightening, cleaning and lubrication, only one part, the Y axis head bearing, needed replacing. After providing a video and a few photographs, the wonderful staff at both Ultimaker (thanks Matt!) and fbrc8 (thanks Erin and Joseph!) had a new bearing in my hands in two days, and the Ultimaker 3 Extended was back up and running, so... WiFi Propeller Boat II is my second propeller styled boat design. I know, I know, in WiFi Propeller Boat I did indeed state it was my last boat design for the summer, but since the Ultimaker 3 Extended was back up and running, I decided to add a dual extrusion wing and wing support, increase the stern end hull size to support the wing and wing support, increased the length of the main axles to compensate for the increased hull size, and finally, design a dual extrusion cover. A word of caution; I designed WiFi Propeller Boat II to be "splash resistant" not "water proof", so if a rogue wave, grandchild, niece, nephew, etc., "submarines" WiFi Propeller Boat II, well good luck. As usual, I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to ask as I do make mistakes in plenty. Designed using Autodesk Fusion 360, sliced using Cura 3.4.1, and printed in PLA on both and Ultimaker 2+ Extended and an Ultimaker 3 Extended.