Voldemort87

Started creating stud.io model. Here is the 2-speed gearbox used! Gearbox output is be 4.98:1 (low) and 1:1.66 (high)

Sure, will try to show that in the video. purely the part cost and availability reasons. It takes a lot of time for me to order the parts and receive - 1 to 2 months. That is why I tried to do as much as possible with what I have. I wanted to publish this MOC earlier, but I was waiting for 2 months for the yellow hood parts. Sadly I lost 2 packages that I ordered.

Yes that's correct. When I first started I had based the drive train around Sariel's 4 speed RC gearbox. But I realized i didn't have space for the fake engine and also was increasing the wheelbase. So I created my own gearing which is a simple 2 speed gearbox. Ratios are a bit extreme but I wanted a torquey drive for crawling and at the same time wanted a fast RC model to drive around level ground unlike the Zetros. In high gear it has very less torque such that it can be stopped even by a slight obstacle/gradient. Yes, started with a soft spring initially, but it was too soft for the weight of the model and also it had too much relative travel of tires with respect to the body work. So it was scrapping the body much more. I wanted to reduce the bodywork to tire relative movement but wanted high overall articulation of the model. So most of the articulation is entirely achieved by the chassis considering that the hard springs are stiff. The real Unimog has a flexible chassis that has high torsional flexibility. It comes from the beam structure and also the way the body work is mounted to it. Unimog U 4023/U 5023: Chassis - Mercedes-Benz Trucks - Trucks you can trust (mercedes-benz-trucks.com) Like the real Unimog I have mounted the cab by a 3-point mounting that also allows the chassis to flex independently of the cab. U can notice that in the picture above where the wheels are articulating. The Cargo bay I have mounted with just 2 pins since it is not very heavy except for the PF Hub weight that sits on top of it. So this also allows the articulation of the chassis. To sum it up, like the real unimog cab and loading bay can rotate relative to each other. Hope I am clear? Thank you :) I am also new to the technic and the trial trucks and my references are only the online videos. I believe the Unimog has engine below the cab and I have tried to replicate that. Please refer the image in the link below. 2014 Mercedes-Benz Unimog U5023 - Gallery | Top Speed Yes, the hood is a bit empty now. I am trying to add a RC winch inside the hood but seems not enough space to mount a winch. I will try it once again. Ideas are welcome :D

Thank you everyone. @1gor@gyenesvi Glad you liked it. I tried a lot to keep the body work neat and clean and also tried to stick to the correct Unimog proportions. I am also considering to make one with the tractor tires but will increase the scale by a few studs. @suffocation Yes I have a PUU code for the shifter. It is quite simple and I think there is already some nice guide available online for simple functions. you can also refer Sariel's gearboxes with instructions for ideas. I am making a studio model of the MOC and once completed I will share probably along with instructions. @Zerobricks@Jayden Yes, sure I will post more detailed pictures and maybe the studio model once I complete. I am providing more details below. As 1gor and gyenesvi rightly pointed I also considered using 2 x L motors like the Zetros but I had to let go for the idea in order to have a ladder frame and tight packaging with the gearbox. To overcome the constraint I have a 2 speed transmission with the total reduction of 34.8:1 - low speed and 4.188:1 - high speed at the wheel. To save the U-joints I have more reduction in the wheel axle. Portal axles - 3:1 Diff - 2.33:1 Gearbox - Low - 3:1 and High - 1:2.77 Motor to gearbox - 1.66:1 It can climb 44-45deg angles before the tires start slipping. I will post some videos as well soon. I do agree the suspension springs are not optimum links, yet it is well compensated by the flexible frame. Actually the wheel articulation is achieved mostly by the frame rather than the springs. This also helps in avoiding the tires rubbing against the body work too much. The Hard springs are almost rigid.

Hello everyone, I would like to showcase my first MOC - my interpretation of the Unimog. It has 4WD with portal axles for good ground clearance and wheel articulation assisted by a flexible chassis like the real Unimog. The truck has 1XL motor for drive, 1L motor for RC gear shift for a 2 speed transmission and 1L motor for steering. Cab can be tilted and there is a fake engine underneath the cab. Thanks to @Thirdwigg for guiding me into the Eurobrick forums and also giving pointers in the right directions. I was also very much inspired by Unimogs of @Thirdwigg , @efferman, @Pat-Ard, @nico71, brickgimlas and the creations of @Madoca 1977, @rm8 and @Sariel. Thanks to everyone for providing the motivation for the MOC! I will probably expand the model with added functionalities in the future once I get better in building and will be happy to hear your thoughts!