Lixander

Great work! If you want to continue testing, you can make the set wider, by putting the wheels more apart from the body. It will take more parts, but it will be more stable.

I understand. Thanks for the explanation.

Even if they are from links? Got it; thanks. Now, let`s hope I will get those wheels

I am worknig on a new project - a small off-roader. Until now, the model has between 560 and 600 grams or about 19 - 21 ounces; 1x servo-motor and 1x buggy motor, 4x 6.5L hard shock absorbers for the independent front suspension and for the back hard axle type suspension; the front arms are packed tight, having just 1 stud between the left and right front suspension arms - this results in an enhanced suspension travel and look, resembling the real baja buggy`s. It can be fitted with 2x lighting sets. It was hard to find a space for the batteries, as if a wider body was even uglier than the present one, which i still do not find so appealing. After I finished the body-work, I managed to find a spot for the batteries - BuWizz 2.0 and 3.0 and MouldKing battery hub. The next thing is test-building this thing until April or the start of March.

If you want more realistic renders, you can paint the tires in ”Rubber black” (it is in the black/white colors, but it is a little lower than the standard colors)

I managed to finish it; you can find the free digital files on my Rebrickable

After the new year, I wanted to start a new off road project, but this time with a more aggressive behavior. I tried to make a new front frame, that would house the suspension arms as tight as possible, as the real Baja/ Trophy trucks have (that means only 1 stud between the arms), but also to enable a positive caster angle and to be as light-weight as possible. I managed to figure it out somehow, but overall, the chassis looked like garbage. After that, I found a cool Alpine buggy design (or a trophy truck, I don`t know exactly where to put it) and I wanted to recreate; the shapes of that thing where too much for me and for Lego, so I abandoned this one too. But, I needed a chassis for the Alpine thing, so I modified my first Lego off-roader - the Frankenstein buggy, that was based on the 42124 set. Anyway, after all those failed attempts, I still managed to obtain a chassis. Being a pretty small update for a new MOC, plus I didn`t wanted to do a mark 2 (the last projects had too many versions), I decided to take it further. In this way, I modified the motors structure and the length of the model, but also improved the servo situation (the servo sticked out too much at the bottom). Now, it has fully independent suspension on all 4 arms plus a good suspension travel on the front (made by 2x hard 6.5L shock absorbers for the front and 2x soft 6.5L + 2x soft 9.5L shock absorbers for the back), it is smaller and lighter - about 730g or about 25.75oz without the actual battery. The other specs are the same as the Frankenstein: 1x servo-motor for the steering, 2x buggy motors for the rear wheel traction and room for just a battery (BuWizz 2 or 3 and the AliExpress battery hub). Still W.I.P., because the rear arms are somehow twisting when the suspension is under load; I made it less obvious by testing many solutions, but the problem is still there, just smaller.

Thanks for the welcoming :))

After seeing my first Lego RC off-roader finished, I stumbled across the retro RC buggys and truggys design; I just fell right away for their looks and color-schemes, so I it was a must to recreate at least one. I started with a 4x4 version, which is still in the testing phase, then I went for a more robust and simple variant, so to say. The mk1, completely different from the inspiration I had, was a test-bed; I tried to put all my knowledge into the smallest chassis I could, but keeping everything simple (you can read and see more of the mk. 1 here). Moving to the mk.2, the main subject, I switched to 2 batteries and fully independent suspension and dropped the positive caster angle. The mk.2 has: 4x 6.5L hard shock absorbers for the fully independent suspension removable body-work and rear wing 1x servo-motor for the steering and 2x buggy motors for traction (geared at 1.67:1) it can hold 2x BuWizz 2 hubs or similar batteries it has about the same pieces as my first RC Lego off-roader, so it should go at least as fast as it - that is about 11km/h or 6-7mph 3D files are on my Rebrickable

Nice MOC! I like the style of the retro RC buggys and truggys too; I recently finished 2 truggys. I first went with a 4x4 - I still need to take the rest of the motors for it, then I wanted to do something more simple. For the 2nd variant of the simple truggy, I was inspired by the Kyosho Optima Mid. Anyway, keep up with the good work!

Yeah, it is intentional. The inner one gives more speed, indeed, but takes torque. The outer one gives more torque, but coupled to a wheel hub portal, gives a decent speed. I think it is ideal to have a mix of both, for being able to have decent speed but decent torque too.

Thanks for letting me know!

In the summer of 2022, I started the my first Lego RC off-roader project, based on the 42124 set - Off-road buggy; my goal was to create something simple and robust, but very powerful and with off-road capabilities. I considered the pretty new 42124 set as a good starting point; for powering the wheel I considered that at least a buggy motor will suffice, but I observed that a similar MOC already exists, so I said that there is only way to go - to put 2 motors in the small structure of the 42124 buggy, something pretty rare to see , even to this day; choosing 2x buggy motors for traction meant that for steering I could only put a Power Functions Servo-motor, being a far more good option than the new motors, that need the new Lego battery hubs, which limit your motor options (in my opinion). I analysed the newest and greatest MOC that I had (I still consider it a master-piece) - a RC baja-truck, and put the knowledge that I gathered in creating the rear axle and modifying the front structure. When I first tested it, in my flat, I was surprised by the speed and agility of this thing - it was something monstrous comparing it with the original set, that is what gave me the idea of the name of the MOC; after that, I went in a park multiple times, testing and playing with it, until I could called it done. Being so impressed by the agility of the MOC, I wanted to measure the maximum speed it could achieve; I thought at the cheapest and fastest way to do that, and I found, on the internet, that a smart-watch would do just fine; I strapped the smart-watch on the buggy and set the watch to record a bicycle exercise . I was pretty proud of the speed achieved: about 11km/h or 6-7mph. Moving to the specs, it has: 2x buggy motors for traction (geared at 1.67:1)and 1x servo-motor for steering positive caster angle, as the original had 4x 6.5L hard shock absorbers, for the fully independent suspension in front and rigid axle type suspension on the back

I was born in the capital of Romania - Bucharest, and I live in here since then; it is a pretty nice city, but has some down-sides. I got my first Lego set at about the age of 5, probably a classic and cheap system set from the market; still have a sack of pieces from those rip-off sets. Anyway, as I grew up I got to see the Hero Factory and Technic sets; as I am found of mechanics, in general, I started to get more Technic sets and eventually, to dream of an RC Technic car. I really liked the Madoca`s RC MOC`s and I wished to get one in hands. As I got closer to the final secondary school year, I dumped the Lego for some years. I got back slowly, after about 2-3 years, buying and building my first completely RC Lego, despite being a rip-off. After another 2 years, here I am, with about 3-5 Technic sets, 3 RC rip-off sets and about 700 loose parts, excluding the buggy motors, which are not original, as you probably guessed, which are part of a baja-truck MOC. The last year I made my first MOC`s, discovering that I really like the off-road side of motor-sports, I got into this niche with Lego. My last 4 MOC`s are made for off-road. So, here is my last MOC, a retro truggy (truck + buggy); hope I will be writing again soon.