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Found 2 results

  1. Hello everyone! This time I built a modification of rm8's Toyota Land Cruiser FJ40. FJ40 Crawler Weight: 1145g Propulsion: XL motor for 4 wheel drive Steering: Servo motor 2 speed gearbox: M motor Winch: M motor Headlights: PF light Powered by: SBrick and 8878 rechargeable battery box This is my third SBrick model. One SBrick and a rechargeable battery box fit well in the rear space. Unfortunately tumbler tires from 42050 cannot use for front axle. They touch the connectors when steered. So I used normal balloon tires. One XL motor has enough power to climb the slope of over 35 degrees even in high gear (4.2:1). It can climb much steeper slope in low gear (12.6:1) but less-grippy balloon tires would start slipping. You can see that situation in the second half of the video. Building process was not straightforward. First, I decided to adopt bigger wheels, working headlights, motorized two speed gearbox and winch. Also I was planning to keep the whole original bodywork as possible. Like rm8’s chassis, it has front and rear live axles with 3 links. In offroad driving, 81.6mm wheels require gear reduction after differentials. My first attempt was using central torque vectoring diff and rear portal axle like my Off Road Pickup. Front axle was not changed. Although it kept the same wheelbase as original, this version was failed. Every time I started driving, 20t bevel gear and diff disengaged. Second plan was using front and rear portal axle. I tried to make the wheelbase as short as possible. It became five studs longer than the original. So I needed slightly longer body. Building whole chassis was the most difficult. The problem was how to minimize the mechanism of motorized gearbox. I used new driving ring and red clutch gears. I felt that they were stronger elements than old version and they could handle more torque. Although 2 speed gearbox was simple, I had to hide the whole mechanism under the seats. I eventually squeezed a mini linear actuator into the left of gearbox. Changing gears is not fast, but it's easy to adjust lever in neutral position in case of using winch. The winch mechanism is the same as the original. It is powerful enough to help climbing steep hills. I have to say that rm8 had achieved perfect weight distribution. I recognized it when I was attempting to build various versions of chassis which had different motor locations. So in my final version, all PF elements are in nearly the same position as original. The bodywork needed some minor changes due to the new chassis and my parts assortment. In original “face”, it was impossible to put LEDs into behind the headlights and shine trans-clear parts. Moreover, Round tile 2x2 trans-clear seems not to be the official parts. My alternative was built out of available parts. I know the original looks far better and hard to change. But it was worth for me to find another solution. Original FJ40 is modular building. It has various options like doors, roof and snorkel. Since my MOD became bigger and heavier, I didn't add the roof. (Still, four soft shock absorbers are slightly compressed when it stands stationary.) Instead, I built detachable doors in two versions. Building instructions: http://rebrickable.com/mocs/Madoca1977/fj40-crawler I hope you like it!
  2. Hello everyone, This is my new creation, a copy of 1970's Chevrolet Corvette. It is a medium scale model driven by two L motors, steered by a Servo motor, and wearing 56mm tires. Weight is 1060g. Thanks to using 24t clutch gears, it smoothly accelerates and stops. Suspension travel is short and ground clearance is about one stud or so. But it is enough for driving on tarmac. Features, Four-wheel independent suspension. Working retractable headlights and tail lights. Openable hood, doors and 'trunk' (for access to 8878 rechargeable battery). Removable targa top. Video: Building instructions and more pictures:https://plus.google....64977943/albums I added this MOC to Rebrickable. I hope you will like and build it!