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Pan Dong presents. New mini truck, they are based on Unimog trucks. 4 wheel steering, this function is the focus of the building. Short wheelbase, portal axles, lightweight body. Two chassis models, like a RC car, one has server motor for steering, the other linear actuator and M motor . But , Both have the problem of turning to the imaginary position. L motor x2 for drive. I hope you'll like it.thankyou for watching. 樂高科技迷你卡車,Unimog 406/427，董攀設計，謝謝觀看！ 這次拼裝的重點，在相對較短的軸距，實現四輪轉向，然後輕量化車身結構，模擬RC車的懸架扭動姿態。有兩種底盤模式，一個採用伺服馬達轉向，另一個是小推桿加M馬達。兩個L馬達驅動，RC輪胎。四輪轉向真是靈活很多，攀爬時候的優勢明顯，不過因為前後各採用兩組萬向節傳動，導致有明顯的虛位問題。伺服馬達轉向，效率直接，但是轉向有類似軸效應現象，車頭會左右擺動。小推桿加M馬達的組合，姿態很棒，不過向上攀爬時後橋壓力大，還是建議採用不轉向的後橋，會更加結實可靠。 Unimog 427 Upgrade Version Unimog 406
I uploaded my smallest truck few days ago: Folder: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=520763 My purpose was a very small trailer truck with remote control. The PF RC system rquired the trailer, in the tractor truck there is only space for one micromotor and the suspension. Total length is 42 stud, width is 5 stud in the truck, 6 in the trailer. The trailer's height is 10 stud at maximum. One old 71427 motor drives the rear wheel of the truck with universal joint: Then, 6 of the 12 tooth bevel gears make connection with the rear axle: The steering is done with micromotor. There is 4 functions in this moc: 1 driving 2 steering 3 Led lights in the back 4 suspension There is one receiver for the leds, so they(orange and red) can be controlled individually: Except the truck's driven axle, all axle has suspension. Front: http://www.brickshelf.com/cgi-bin/gallery.cgi?i=5733797 Trailer - the red suspension parts are from the city theme, I like these small live axles, they are perfect for here: The most tricky part was the tractor truck of course. Fortunately I have two large red doors from an old set, so I could do the truck with this looking: I know that the wheels are a bit small for this body, but who cares. If we take a look at this( http://www.autospies.com/images/users/cawimmer430/5678_1.jpg ), then it's not so big. The trailer is full with PF parts. From the front part there are: 71427 motor - AAA battery box - two PF receivers - leds. The few metallic silver grill plates cover the receiver's infra parts, so you can't see them, but the communication between them and the remote controller is still good: For the control the 8879 remote control is recommended, as can be seen in this video: Hope you like it.