LEGO Technic - Floor jack

First version of my floor jack Lego Technic. More info here : http://www.techlug.fr/Forum/topic8835.html The 2nd release : https://www.youtube.com/watch?feature=player_detailpage&v=HN9kjLjVIN4 Version 2.5 : https://www.youtube.com/watch?v=Pu2ehu0hs0g Première version de mon cric Lego Technic. Plus d'infos ici : http://www.techlug.fr/Forum/topic8835.html La 2ème version : https://www.youtube.com/watch?feature=player_detailpage&v=HN9kjLjVIN4 La version 2.5 : https://www.youtube.com/watch?v=Pu2ehu0hs0g