4. Draw the Axles
Draw ovals inside the rollers to add depth and create the axles. Add circles on the axle brackets to connect the rollers to the brackets. Draw four small ovals at the top of each axle bracket. Draw the small lines that make the axle brackets on the other side of the body, along with the small line from the bottom of the body to the front roller.
Up next, we'll add some detail to the body.