Small tractor with freely rotating wheels printed in just one piece. It is printed in the "on the side" position so no need to add supports. For a functional print, you need to have the first layer and flow properly calibrated (to prevent the wheels from sticking to the chassis). When removing from the backing, it is advisable to wait for the backing to cool and remove the print carefully due to possible breakage of small parts.

More toys printed in one piece:

Truck - tanker - https://www.printables.com/cs/model/255294

Little Bobcat - https://www.printables.com/cs/model/236978-little-bobcat-printed-in-one-piece-without-support

Small tractor - https://www.printables.com/cs/model/233171-small-tractor-tractor-spinner-printed-in-one-piece

RM-70 Vampire 4D - https://www.printables.com/cs/model/210683-small-truck-rm-70-vampire-4d-printed-in-one-piece

Flexi excavator - https://www.printables.com/cs/model/233416-small-tractor-flexi-excavator-printed-in-one-piece

Tatra 813 KOLOS - https://www.printables.com/cs/model/204992-small-truck-tatra-813-kolos-printed-in-one-piece

Small truck - https://www.printables.com/cs/model/203724-small-truck-printed-in-one-piece

Little beton mixer truck - https://www.printables.com/cs/model/86386-little-beton-mixer-truck-maly-domichavac

Small car - https://www.printables.com/cs/model/85918-small-car-male-auticko

Small van - https://www.printables.com/cs/model/85917-small-van-mala-dodavka