This "wheelbarrow" for a heavy stand mixer allows you to easily move the mixer under the counter or into a corner. It can be printed in a color to blend (or contrast) with the mixer.
Print the rear base/axle at 100% fill for axle durability. It works at 10% fill, but a safety factor wouldn't hurt.
Push skateboard bearings into the wheels, then push the wheels onto the axle. Connect the front base and rear base with the connector (friction fit).