How can this be printed without support? At height 66.1 mm the 3 left axles (as pictured) start forming practically in mid air (this is printed sideways, so they're actually printed around the top. The top and bottom axles (again, as pictured) are attached on the sides, but this still requires a 60mm+ bridge (my printed would never succeed in this), the middle axle extends from the center to both sides, for about 25mm.
Note: I just sliced and looked at the layers. Again, how can this be printed without support?