Present project was based on total number of 225 parts created via Pro-E (or PTC Creo), Version 3.0. Each cart has 13 parts: 4 wheels, 4 studs, frames (4pcs) and support. For animation (also in Creo itself), 10 sec of time was used. Within this time, I had to introduce each cart's initial, loading and final positions. Due to lack of screen resolution, the quality of videos are low. Moreover, the play speed was also decreased in youtube settings to allow better visualization.