First I printed the sample horse head file, which came out nicely and had good adhesion to the bed, came away with spatula after cooling. Next I tried a Rocket from thingiverse, sliced in S3D scaled down 50% 0.2 layer height and enabled Vase mode , took 24minutes to print. Even though i set no raft or supports, there was some extra filament printed around the base which came away easily. During the first layer i noted one of the legs was being printed hollow while the other two were solid, not sure why this occurred.
https://www.thingiverse.com/make:339952
Looks OK but how do i make it more smooth? Is it increase the layer height or decrease?