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Based on 2013 Volvo FH16 6x4 its equiepted with ampliroll or hook lift system [media]http://www.youtube.com/watch?v=Bx8kawBn1Io[/media] Features: 1 M motor for steering 1 XL motor for drive 1 M motor and 1 linear actuator for the sliding/locking mechanism 2 Recievers 1 Standard battery pack 1 Flat bed 1 Wood log carrier 1 Open dump body? (i dont know how to call it) And openable doors Some more info: It uses 2 linear actuators for the jib but in order to make it work i needed to get more range so i used 2 tipper scissor style mechanisms to achive it. The sliding/locking mechanism uses a 12t to 24t because the jib flexes at the middle and its only got 2 fixed points this also means that it can only be powered when the jib is in the lower position something that real trucks use to prevent the jib from being accidentaly disengaged when its at the tipping position which could cause damage cause the body would fall down. The rear pendular suspension is achived by meshing a 12t to 20t gear so that they can rotate at the mesh (this is something i saw Zblj do in his videos) Things that can be improved: The rear chasis flexes cause it only uses 2 beams at the rear where the wheels are connected The linear actuators are too slow specially the sliding cause it uses a worm gear but i didnt have more room for other thing Since i build it i was told that in the real ones the 2 parts of the jib when they are in the hook position the jib has a contac point and then both of them move together so that the lenght of the point where it pivots to the point of the hook changes to have more power in the initial part of the lift http://www.brickshel...ry.cgi?f=527652