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Hi Folks! Let me show you a build that has been sitting on the shelf for a while but I only got around finalizing its presentation lately: a Zil 130 6x6 trial truck built for the mini truck trial challenge in Buwizz camp 2024. The model is actually a predecessor of my Ford F150 built at the same scale and color. As the rules of the competition said that one can only enter with a proper truck (not a pickup truck), I had to build something new, but as I did not have much time to build, I wanted to reuse some of the chassis/suspension setup, and the small blue fender parts. Because of the blue color, the Zil was a convenient choice. However, I decided to make a 6x6 version for better traction and for the challenge of building a dual rear axle, which I have never done before. Features All wheel drive with independent rear driveshafts, 2x PU L motors 5-link live axle front suspension with coil springs Live axle rear suspension with leaf springs by flex axles and support links Linkage based steering of front wheels by PU L motor Openable doors and removable cargo bed (for more flex in trial) Simple but complete interior Chassis and suspension design When I started out, I knew I wanted to keep the motor layout and front axle design from the Ford F150, but I also knew the rear axle design had to be changed because the coil spring setup was not a good fit for a truck (too high). So keeping the motor layout, I adapted its rear end to a truck, and also removed the gearbox and its motor to give space for the double driveshaft. The bare chassis looks like this, simple and slim: Then I started experimenting with leaf spring setups using flex axles, which have been used by many (I especially like the work of @paave in this area), and looked promising. However, the existing designs I found were not completely satisfactory for my needs; they took up too much space for two axles close to each other, and they were a bit stiff for my lightweight truck (I wanted something with a lot of flex). Typical designs start out with a bent (11L) axle in a downward looking quarter circle, and then the axle bends upwards upon articulation, which gives a preload to the flex axles. I found a configuration which starts out with the flex axles flat and then bends them upwards upon articulation, which allows using shorter (7L) axles with a tighter mounting, while still having a soft flex. The rear axles are really slim, consisting of only a main beam and wheel mounts. They look like this installed into the chassis: To keep the rear axles in position, a row of lower links run underneath, and and towball arms secure it from the top. The two rear axles can articulate completely independently, the are not coupled. I am really satisfied with how this came out, it's very compact and even looks somewhat realistic. Bodywork and interior To build the body, I used a mix of technic and system parts. The blue fender pieces are quite a good fit for the Zil, and a few curved slopes around it can fill the holes. The micro panels add nice curvature to the doors, and further sloped system parts can be used for the B pillars and of course the hood. Also, I wanted to have a brick built front face / grille, which I also managed to realize with system parts built in various directions. In general, the technic micro panels and curved system slopes play very well together, I love to mix them at smaller scale! As for the interior, two small seats are perfect, and I had space to add a dashboard with steering wheel and a gearstick. Running the cables through the cabin was a tough part though.. Furthermore, besides the bare trial version, I wanted to make the model so that it can be a complete truck with a cargo bed, so I made a simple detachable one using a few large panels. A key to this is that the rear section of the chassis is low enough due to the compact suspension. Here are some more renders and photos as well. More pictures are available on Bricksafe, and building instructions are available on Rebrickable. As for the performance of the model, without the cargo bed it is really a cute little agile beast :) The two L motors provide ample power, the suspension has a lot of flex, ground clearance is also quite good for the size. Unfortunately, the turning radius is not so great due to the length and that only the front wheels are steered, which proved to be a disadvantage in the trial competition. Also, the competition allowed for bigger tires (up to 62mm) as well, which I did not max out, but wanted to use these smaller ones instead because they look so cool; that also put me to a disadvantage against other competitors, so I did not place well. But when just playing for fun and making the video, this little truck gave me a lot of joy :) Let me know how you like it! Cheers, Viktor -
Hello i am back and here it is my new MOC ZIL 130 mmz 555 Soviet dumping truck. 1 X PF M MOTOR FOR DUMPING 1X PF XL MOTOR FOR PROPULSION 1X PF M MOTOR FOR STEERING ( Virtual Pivot ) 1X PF M MOTOR FOR 4 SPEED REMOTELY CONTROLED TRANSMISSION PF LiPo BATTERY WORKING STEERING WHEEL REMOTELY CONTROLLED DUMPING FRONT & REAR SUSPENSION 4 SPEED RC TRANSMISSION MANUALLY OPENED DOORS VIRTUAL PIVOT STEERING SYSTEM Movie Full Gallery https://www.bricksafe.com/pages/samolot/zil-130-mmz-555 http://www.brickshelf.com/cgi-bin/gallery.cgi?f=569313 LENGHT 45 CM WIDTH 20 CM WEIGHT 2,1 KG Thanks i hope you like it. -
BWSM 80 was a prototype of a "sanitary" vehicle created by combining the DT 75 bulldozer with a GAZ 53 cab. I've found its picture in the RU-net already a few years ago, but it waited for its turn in a folder with inspirations. It used to be orange Porsche that I could build Zila 130 now from blue Bugatti I made Gaz 53. I wonder if a new secular tradition was created? Three weeks of holiday in the countryside was enough to build this 60 cm model. There were several challenges in the construction. Weight, the model could not be too heavy because it had to rise and ride on tracks. It determined the entire construction. I could not use too many PFs, a complicated suspension, fake engine under the hood and details of the interior. The biggest challenge arose, how to use the two PF-L to master the drive in three variants. 1 Only wheels 2 Only caterpillars 3 Wheels and tracks simultaneously For a good balance, the motors and Battery Pack are at the end of the vehicle. In front of the PF L motors there is a system of three gear boxes, two of them transferring the drive from the PF l motors directly to the caterpillars or to the rear wheels (one motor ) and the front axle turning (the second motor). The right motor, however, is attached to the second gearbox in front of the drive wheels of the caterpillars. With it, you can drive the right caterpillar "from the front" simultaneously with the wheels. To drive left caterpillar you need, the fourth box which is placed at a 90-degree angle to the others and uses a blue 2o zgear from Bugatti. It is just transferring power from the right engine to the left caterpillar. A completely different challenge was to make this 2.5 kilogram move efficiently on relatively short caterpillars. Obtaining the right stiffness required a lot of mass tests. The model lifts up a single PF M handle thanks to a double worm gear with toothed wheels with z 40 and two clutch z 24. Another difficulty was the fact that when lifting, you have to compensate with the tensioning wheel changing the caterpillar tension. I got the desired effect thanks to the system which, when moving the main lifting arm by 9 studs, shifts the drive wheel axis by only 5 studs. In addition, the tension is supported by four small shock absorbers. To make the vehicle lightweight I decided to simplify the suspension and the use of leaf springs, there are also no extras such as the fake engine under the hood or the detailed interior of the cabin. I only added lights in the front. I hope you like it and I look forward to your comments. The whole Gallery https://bricksafe.com/pages/samolot/bwsm-80 Lifting 1x PF M Propulsion 2x PF L Control 2x PF IR Lights 1x PF LED Weight 2.5 KG Length 60 cm Width 21 cm Height 25 cm
