vergogneless

@pow Thank you for your interest ! I have several challenges that are accumulating regarding the front section. I don't have many options. I'm working in a really tiny space because I also need to fit in the servo motor. So, I don't have much width available, and on top of that, using a hub alone takes up 2 studs in width. To make things more complicated, I need to ensure a minimum of 2 studs of ground clearance and that it's sturdy + incorporate the suspension system. It's a real puzzle, haha. As for this model, I can't say it's problematic. I actually drove it earlier, and there's nothing wrong with the handling. I'm just concerned about its durability. That's why I'm simultaneously developing another version of the Trophy Truck that would address some of these issues. The big change is that this time, I decided to work with the servo motor in a vertical position. I managed to design a front section that is more robust, just as compact, with an improved pivot point, and now offers 3 studs of ground clearance! I will be using shocks to change things up a bit. I'll show more details about it soon.

@Johnny1360 For the pneumatic system, I use Mould King equipment, which is very good and affordable. The complete set on the Miguba store on AliExpress is around €25 (includes everything, and the price is the same for larger cylinders). If you add €8, you can get an air tank, which I recommend for added comfort, especially for larger scales. See you soon, and thank you for your message. On another note, I had an accident earlier today. I had a frontal collision on the right side with a curb due to a moment of inattention, and it would have affected any RC vehicle of this scale. I broke a cylinder, but I repaired it using super glue and baking soda. It's now even stronger than before, but I still ordered a batch of new cylinders. I will replace this one for aesthetic purposes, and I'm planning on using a different model with a closed and non-adjustable circuit. It takes up less space and doesn't require "recharging." At the moment, I could also replace the entire current system with shocks, but I've already started working on a new version that will have them, which I will showcase in an upcoming WIP (work in progress). Therefore, I'll set this model aside for now until I receive a brand new cylinder for the video.

Finally, when I woke up this morning, I decided to revisit certain aspects of the design, particularly the front and side sections. It's more harmonious now, and there are no longer any issues with the pneumatic system rubbing against the aesthetic elements at the front. I also wanted to make a quick note about the ball bearing pieces. Regarding the hubs, they are excellent with almost no play. In my opinion, they are becoming essential. Not only do they securely attach the wheels, but they also eliminate friction. As for the flanged bearings, I have a more nuanced opinion. It depends on their specific use, to be honest. They are slightly curved. It may not be clearly visible in the photo, but it can be problematic as it can cause friction and minor misalignments that have an impact on the LEGO structure. The ball bearings appear to be of good quality, but they might be fragile. They can be easily removed, and there is an unpleasant amount of play due to the fact that the ball bearings are only half the length of the hole. The diameters are not exactly the same for the remaining length (where there are no bearings). Regarding 3D printing, it seems that the quality is inconsistent. Some holes are looser than others, and sometimes they don't even hold. The same goes for the cross; your axle might slip on its own. But overall, I believe we need to familiarize ourselves with these components and learn to integrate them intelligently. Regardless, I do feel a difference with this model (using a combination of hubs and flanged bearings), and that's quite positive. There is less braking/drag effect when not accelerating due to reduced friction. As a result, the wheels travel a greater distance in freewheeling mode, leading to less wear on the parts. I will provide further feedback after thoroughly testing it over extended periods of time.

@Johnny1360 Yes, it's true that I noticed something was off with the steering, visually speaking, but I can't quite put my finger on the exact term for this phenomenon. I believe it's because my steering rack is positioned behind the pivot point: The lack of space with the use of hubs forced me to do it this way. It does affect the handling indeed; the maximum steering angle is excessive (I can do a full turn within a diameter of less than 60cm). While driving, it's not at all suitable as the vehicle easily flips, especially with this power. But I can reduce it by at least half, and then it's fine. The advantage is that I can adjust the steering angle according to the usage or terrain, directly on the controller. Regarding the pneumatic system, it serves to adjust the model's height, but it also functions as an air suspension (although there needs to be air inside, as at the minimum level, there is no suspension effect until you pump it again). The more air there is, the higher the vehicle will be, and the stiffer the suspension. With half-filled air, the suspension behavior is very similar to that of an oil-filled shock absorber. It's very supple, and the vehicle compresses without bouncing. Watch this video; I'm using the exact same principle. The only downside at the moment is that I have to pump it every 2-3 minutes. But I've ordered a mini tank air reservoir to significantly slow down this phenomenon. "more LEGO elements used" I can understand that sentiment. I feel the same way when I see constructions that only use LEGO elements :D

Here, I have achieved something that pleases me in terms of design. I will see if it continues to please me as the days go by. Everything is working wonderfully; the pneumatic suspension allows for various adjustments and provides a delightful driving experience. I have driven for about twenty minutes, and it feels like there's a little cloud beneath the body. In the photos, you can see the range of ground clearance, from the minimum to the maximum. The advantage is that at the minimum setting, the center of gravity is significantly lowered, which is perfect for the road and high-speed runs. As for the maximum adjustment, it's more suitable for off-road trails! In terms of performance, with the 3S battery and the 1:2 gear ratio, it's monstrous for a 470g model. It provides a lot of enjoyment and fun. All of this will be presented in a video soon, as usual!

@pow Thank you, I appreciate it I have made good progress so far; the body is taking shape, but I still need to work on the front and rear sections. I'm also wondering if the cabin is too tall. Ultimately, I will need to connect everything to the pneumatic system !

Heyy everyone! PHOTOS : https://bricksafe.com/pages/vergogneless02/the-new-mini-brushless-trophy-truck---v1- Today, I come bearing a brand-new project, or rather, the evolution of previous models. I hold a deep admiration for my initial Trophy Truck: However, it possessed certain flaws that I have partially rectified with the Hot-Rod Cross: Yet, as an eternal dissatisfied soul, I knew I could achieve even greater heights! To be precise, the objective is to remain within the same scale, but with the following enhancements: Incorporation of ball-bearings parts Maximum steering angle Further elevated ground clearance Improved trade-off between speed and acceleration And above all, a fully pneumatic suspension system. Regarding its dimensions (for now): Length: 16.5cm Width: 12cm with wheels Height: approximately 8cm Weight: 372g (including the battery) Now, let us delve into the specifications: A2212 1000kv Brushless Motor Surpass Hobby KK 35A ESC Gray Geek Servo 360 Dumbo RC X6PM-350 + X6FG receiver (with an integrated gyro!) 3S 450mAh battery Carbon fiber rear axle Ball bearings on front and rear axle Gear ratio: 1:2 The design is still in its infancy, but as usual, I will make the most of the limited space I have available. More updates will be coming soon, along with videos, as usual! Any feedback is welcome; the utilization of pneumatic suspension is a first for me, but it promises to yield truly satisfying results.

@pow Thanks buddy, it's terribly ingenious!

Great project! Insane with those big wheels, it's going to go everywhere! Can't wait to see this monster in action, and I'll keep an eye out for the potential implementation of the 2-speed gearbox because I have a plan to build a model with one too. But for now, it's still a mystery to me how to do it lol.

@pow Hey, thanks for your message! :) Congratulations on your little model, it's always great to see what others are doing and the techniques they use! By the way, I wrote to you on your thread because I had a question! It's true that I could easily install one or even multiple conventional shock absorbers. I've already thought about it, but I really enjoy the feeling I get with the rubber band, which made me completely set aside the traditional shock absorber. I also have concerns that it might be too bouncy when I reach speeds of over 30 km/h. But it's true that I should give it a try! However, I'm currently working on a brand-new mini trophy truck with a fully pneumatic suspension, and it's very promising. We're getting closer to a suspension with an oil bath setup.

Hi! Well done on your work! I'm curious to see how you set up your front suspension system with the rubber bands?

@aFrInaTi0n Count on me, I will provide feedback very soon because there will be some on my next model!

Hi all! Here is the latest video showcasing all the outdoor sequences. It's mind-blowing! It has been running for approximately 10 hours since its creation. Not a single part has broken, and nothing has budged. The only thing I have to do occasionally is tighten the front wheels because the way they are secured is not ideal for such extreme conditions. On another note, I have finalized the design, and in the end, it will remain black as it truly embodies its DNA since the beginning. The next project is already in progress, still at a 1:28 scale, but this time we are switching to 3S! It will also be my very first model equipped with ball bearings throughout :D

I received my order from TF-Engineering! It's beyond my expectations, clearly. Excellent quality and ingenious design! I can't wait to release the next brushless 2.0 models. And thanks again @aFrInaTi0n :D

Here is the video, feel free to react :D

@Krxlion Thank you very much for your warm message :D Regarding the design, indeed, it's not easy, and everything can quickly look square. But I keep discovering more techniques to make the overall look more pleasing to the eye and harmonious. Yes, that's why I love small scales so much, you can even have multiple at once, lol. One for the road and another for off-road :D By the way, since my last update, I made a few visual mods, and I couldn't resist making an indoor drift video at home. I'll take care of the editing and I think I'll post it today! Honestly, it performs well in drifts, and after adjusting the ESC settings, I hope it will be even better! For the big outdoor video, I will try to add some touches of orange :D

A little update to present to you the V2 :D It bears little resemblance to the V1, as you can see, there have been many changes and modifications. Firstly, the design. It's a first draft, lacking some finishing touches and details, and there may still be further modifications. I wonder if I should mix it with another color? Regarding the control and handling. I conducted some tests outdoors and realized that the ground clearance at the front was far too low. Even on a flat road, the slightest pebble becomes a catastrophe. To address this, I had to do some cutting and sanding. It feels like I'm creating my own parts with 3D printing! I don't think I can do any better; I really need the 2x1 connected to the steering rack. After modifying this ground clearance, I achieved what I wanted! I now avoid almost all small rocks, and the few that don't pass through end up getting ejected from under the chassis on their own. I'm surprised by how straight it runs (thanks to the gyroscope) with excellent acceleration. I haven't tested top speed too much, but I have already surpassed what small Wltoys models, for example, can offer. The turning angle and tires allow for sliding on the road. It’s fun. The driving experience is smooth and precise, as usual, I am not disappointed. There is a satisfying sense of power under the finger, especially since that power is genuinely there. I'm delighted to have this little thing to take everywhere, and it works perfectly :D Moreover, to enhance its "portability," I have ordered the new X6PM-350 from Dumbo RC, which has the same characteristics as the X6FG I am currently using but is much more compact. The only difference is that we lose about 30% of the range, but no one will say that 350 meters is not enough, especially in the Lego world! As always, a video will be posted soon.

This little boat is so much fun! It's the first time I've seen something like this, and I'm glad to see all the applications of brushless technology with the Lego system. The motor mount is also interesting! Is the use of panels to limit water splashes?

Hey! That's super inspiring, it's on a whole different level and far beyond. Everything is ingenious, and it seems like there are only advantages? It's a shame that it's so complex to implement. Even though I've pretty much mastered the brushless solution, this is surpassing me again

Hey everyone! (video at the end) This is a somewhat different project from the previous one: The previous project (the cross hot-rod) truly fulfills a need. Indeed, there is no off-road RC at the 1:24 scale, brushless, for a price around €70. It's just a dream. So, I created my own custom model within this price range. It may not compete with conventional 1:24 brushless RCs, but we're talking at least double the price, if not triple. And honestly, for less than €70 (actually around €40 since I already had the remote), I don't think I could find anything better at a smaller scale! Regarding this new project, it doesn't take itself too seriously, but it still means a lot to me. Being a fan of small scales, this time I wanted to replicate what already exists. I have several 1:28 scale RCs that perform very well (drift, speed etc). But I still wanted to see how it would turn out in Lego, especially with a brushless motor. Regarding its dimensions: • Length: 13.5cm • Width: 9cm with wheels • Height: approximately 4.5cm (scalable) • Weight: 221g including the battery (scalable) Now, let's delve into the specifications: • A2212 1000kv Brushless Motor • Surpass Hobby KK 25A ESC • Gray Geek Servo 360 • Dumbo RC X6FG + X6FG receiver (with an integrated gyro!) • 2S 400mAh battery • Gear ratio: 1:2 I'm testing a 25A ESC for the first time; I'll see if it holds up over time and if it has enough power. The advantage is that it's lighter and even more compact. A small novelty regarding the transmission is that I've gone with a 1:2 ratio. It seems to be the sweet spot between acceleration and top speed. Obviously, I know it would be better with a differential, but unfortunately, I don't have the space. I also know that 4x4 would be ideal, but it poses the same problem. However, I do have the gyro doing half of the job, so to speak. So, I'll make do with what I have, and no matter what, I know the final product will be fun and enjoyable to drive. I think for the first time, I'll use the ESC programming card to optimize the power curves. At first glance, the motor is completely disproportionate to the scale and wheel size. So, there will be a little tuning challenge. I've incorporated a makeshift suspension with a rubber band. I think it's sufficient even for outdoor use. I'll see with further testing if I really need an articulated suspension or not. Regardless, it will only run on absolutely flat surfaces. I've focused my attention on the steering angle, which is particularly important for this type of vehicle. In its current state, it doesn't really drift. At most, it slides with panache. I don't expect much in this regard, but I know it will make up for it in driving pleasure and top speed. On that point, I'm certain it will exceed the maximum speed of its smaller siblings, which is 30km/h. Regarding aesthetics, as you can see for now, it's a mess of cables, but with good management, that will be solved. It also doesn't have any design yet; I haven't decided on the bodywork. But there's potential! And here's a short video of this very first version, which is bound to evolve greatly! Any feedback will be greatly appreciated as always :D

Thank you for the encouragement! :D I have truly found my passion with the small-scale models. The new little one is already under construction, at a 1:28 scale

Greetings everyone! Big update, as I'm back with the promised video! There have been several changes since the last publication. Indeed, I (finally) received my little 3S 450mah 70C battery :D It's slightly larger than the previous 2S 400mah 25C battery, but the power increase is astounding. Because of this, I decided to use it for the first time on this model. But with this power boost, I had to slightly revise the design to ensure that the whole setup could handle this power without any issues. Firstly, I changed all four wheels. I'm using the same tires as on my Trophy Truck (43.2x28s), they are wider and have the necessary grip for off-road driving. I've truly fallen in love with them, the driving experience is far superior. They feel like better quality than the newer Lego tires! At the same time, I widened the front and rear axles for more stability. I also made the necessary modifications to increase the steering radius by modifying the bodywork. Several changes and improvements have also been made to the overall design. And finally, I modified the rear axle to switch to a 1:3 ratio, more suitable for off-road terrain. Ultimately, the power gain from the 3S battery enables reaching excellent top speeds! I invite you to enjoy all of this through the video:

Great job! It's all very inspiring to me :D

I conducted the initial tests yesterday, and overall, it is highly promising. However, I did identify certain issues, such as: Front hub loss in the event of an accident Increased fragility of the roof, which was only supported from behind, making it detach too easily in case of an accident *I have changed the front hub, so it should no longer move, I believe. We will see with further use. This allowed me to secure the wheels differently; the rim is now directly attached to the hub, without any "washers" between them. The support is more effective. *I have also revamped the overall design to address the fragility issues and, hopefully, make the entire ensemble more harmonious. I presume the rear wing may suffer, but I am willing to take the risk :D As for the driving experience itself, it is incredibly exhilarating. The suspension system is optimal for this weight and scale. With the increased ground clearance at the front, I no longer fear scraping or wonder if "Is it passable or not?" And the mind-boggling power remains unmatched. One never tires of it. Even the accelerations in a 1:1.66 ratio are seamless, thanks to the meticulously tuned power curves of the ESC right out of the factory. Speaking of this new ESC, it allows for better power management, thus delivering superior performance. I am eagerly anticipating reaching top speeds. Once again, I must emphasize the remarkable work of the gyroscope, without which all of this would not be possible. Its surgical precision makes it absolutely indispensable :D

Indeed, a mini motor that is no larger than an XL motor once mounted, and yet is as powerful as 6 buggy motors, all for less than €6... :D An RTR ESC for €20 (or €10 as an alternative for the DIY enthusiast) A servo motor for €7 A battery for €7 A radio transmitter + receiver for €33 (bearing in mind that for the next project, one only needs to purchase a receiver for €7 if you wish to keep your previous model, as the same remote is retained!) Therefore, the first brushless project costs between €63 and €73 And subsequent projects cost between €37 and €47.