Boat trailer, customizable in length and width. For its construction you need 3 metric screws and 10x10mm square aluminum rod is recommended. You can also buy crawler wheels from 90 to 110mm. It has independent suspension on each wheel increasing the realism of the trailer. It has a manual winch with which you can hold the boat and introduce it directly into the water.It can be printed on any 3D printer, using PLA, in the orientations shown in the images.

You can install the number of axes you want, depending on the ship to which it is intended. The length of the bars is adaptable to the boat you want.