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Showing results for tags 'beryl'.
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A motorized trophy truck model controlled by BuWizz. It is propelled by two RC buggy motors. Features drive, steering, full suspension, and working headlights. Functions/features: Drive Steering Full suspension Working headlights Instructions available on Rebrickable: https://rebrickable.com/mocs/MOC-156104/JLiu15/red-beryl-t/#details This is a MOC with an interesting backstory. I first decided to do my third MOC in the Red Beryl series (after my Red Beryl GT in 2018 and AWD supercar Red Beryl X in 2019) in late 2020 shortly after my first MOC featuring BuWizz and RC buggy motors - my Azure Racer XL. Unlike the finished model, my first attempt used CLAAS Xerion tires and had the RC buggy motors in the chassis instead of having the wheels directly attached to them. I don't recall exactly, but I even included a two-speed gearbox in the model thanks to the inclusion of a drivetrain and differential from the motors. The model turned out much larger than anticipated, meaning the bodywork would have to be very large as well. Given the model was already performing below my expectations, I decided to abandon the project...until two years later. I knew a good first step would be to use smaller wheels, and the spiky treaded tires from the 42124 and 42126 sets seemed to be a perfect fit for a trophy truck. The rear suspension is similar to that of my Azure Racer XL (it even retains the same basic geometry), although it is a solid axle this time instead of the left and right wheels being independently suspended. However, the suspended section is longer on this model, providing a softer suspension with more travel. I guess the shock absorber setup here is not the most realistic for a trophy truck (as most trophy trucks I've seen have their rear shocks more or less vertical), but the suspension setup nevertheless performed well. The front suspension is a typical double wishbone setup with the entire front axle tilted 10.8° for positive caster. Because the front and rear shock absorbers sit approximately half-compressed while the model is on the ground, it did impact the front ground clearance a little, although it was not really an issue when I tested it. The BuWizz unit is located directly in front of the rear axle and is placed low in the chassis to lower the center of gravity. The two RC buggy motors are each connected to its own BuWizz port (as recommended by BuWizz), with another port used for the PF Servo motor for steering. Because there is one port left on the BuWizz unit, I added two pairs of PF LEDs to the headlights. Thanks to the BuWizz speed settings they can shine brighter than when powered by a PF power source, although in my video I did not film it with the lights on as I did not want the BuWizz to cut power from the drive motors. Designing the bodywork was surprisingly challenging. I wanted to stick to pieces I already have as much as possible. The choice of wheel arches/fenders was easy - I used the black arches from the 42126 set paired with fenders from the 42125 set, adding some much-needed curvature to the model. The hood was also straightforward, as it is comprised entirely of 3x13 curved panels. Because the front axle sits at an angle for positive caster, I attached a front bar to it that allowed for an angle normally not achievable with angled connectors. I tried to avoid blue pins as much as possible, using red or gray pins in place of them. The doors were more challenging and it took me a few tries to get the desired result. I wanted to ensure the doors stand out from the rest of the model, but too much curvature looked weird. I went with a design where they slightly recess into the model. The section between the doors and rear fenders was perhaps the most difficult, as it needed to provide a transition from the relatively flat doors to the curved rear fenders. I went with all curved panels and liftarms for this area. I did have to order some new red pieces for the bodywork, namely the curved 1x2 and 3x2 panels at the top edge of the doors and the red 2x3 and 2x5 liftarms in the section between the doors and rear fenders, but the bodywork still mainly consisted of red pieces I already had. System pieces (tiles and curved slopes) are used to fill in the gaps in these areas. The roof was a simple build, although securing it was a bit challenging as it had a tendency to tilt forward. I had to experiment with the A-pillars a little bit but settled on a setup with 7L flex axles. The rear of the model is left rather unfinished to reduce weight, although that is pretty typical of real-life trophy trucks, and the single spare wheel in the back provides just enough weight for the front and rear axles to sit at similar heights when the model is on the ground. The model performed pretty well, and the two RC buggy motors gave it plenty of power. I had wanted to drive a fast off-road MOC at a skate park for years now, and this is my first MOC that I filmed at a skate park. It was fun seeing the model drive up and down the slopes, although it still lacked torque to completely drive over the smaller slopes. I had to be careful with letting the drive motors run at full power as in the Fast and Ludicrous speed settings (or even Normal sometimes) the BuWizz would cut power to the motors when overloaded. Accelerating from a stop on Ludicrous mode was pretty much off the table, although I was able to switch into Fast mode after accelerating on the Normal setting. Two RC buggy motors with their inner outputs geared 3:1 was good for fast driving and small obstacles, although more torque and traction are needed to overcome larger slopes/obstacles. Overall, I'm quite impressed with how this model turned out. Despite having more than twice as many pieces as my Azure Racer XL model, the performance did not suffer much and I had a lot of fun driving it around at the skate park. The suspension is also satisfying to watch, as the model can "float" over obstacles with both the front and rear shock absorbers approximately half-compressed when the model is on the ground. Compared to my first attempt at the model two years ago, it shows that the ideal approach to such fast RC buggy motor-powered models is not to build big, but just big enough to achieve optimal performance. Video: Photos: -
Functions/features: Drive (AWD) Steering (with working steering wheel) 4-speed transmission Motorized gull-wing doors Full independent suspension Flat-6 engine Adjustable seats (recline/slide) Illuminated headlights and taillights (with Brickstuff LEDs) Video: Photos:
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Hey guys, here's a project I've recently started working on. It's been a while since I built anything as I've been quite busy for the past couple months. Anyways, this will be a supercar project. My 4th supercar so far, hence the name "Supercar IV". To be honest I've run out of creative names after giving "Red Beryl GT" to my BrickFair 2018 MOC, so I'm happy to take suggestions if any of you have a better name in mind. From the photos below this may seem like a mere rebuild of my Red Beryl GT, but this MOC comes with several upgrades: A 4WD drive system A 4-speed gearbox, controlled remotely This will be my first supercar to contain such features, and if everything turns out well this could be my most mechanically advanced supercar MOC up to date. The presence of a 4WD system makes it easy to install a 4-speed gearbox, as I took advantage of the two gears of different sizes on the old differential serving as a central differential. I wished that I was able to make the shifting mechanism smaller or use a stepper mechanism for it, but a stepper mechanism is a bit too big and complex to fit in the available space and there is too much structure around the gearbox to make the shifting mechanism any smaller. Although the mechanism appears obstructive as of now, building seats and a roof over it should help conceal it. I am also planning on installing Brickstuff LEDs to this MOC, as well as potentially adding a 4th motorized functions (such as motorized doors or a motorized rear wing). If you guys have any suggestions for me, please let me know. EDIT: I've decided to name the MOC "Red Beryl X", as it's essentially an upgraded sequel to my Red Beryl GT. Photos:
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Another RC motor MOC I am working on. This time the RC motors will be configured differently - they are located in the chassis, placed in a cross configuration so that their inner outputs are lined up. There is a 2-speed remote controlled gearbox at the heart of the chassis along with the RC motors and there will be full long-travel suspension. The front suspension module is already complete, and it will be attached at an angle for positive caster. There will still be some gearing down in the rear suspended portion (e.g. with portal hubs) to ensure the model has sufficient torque. As the name might suggest, this is the third model in my Red Beryl series (not sure why I chose that name, honestly ). It'll be a typical trophy truck with either a fully red body or red with black detailing. I've always wanted to use my older-generation Technic panels from the 8436 set, sorta combining two generations of Lego Technic. Like a typical trophy truck, there will be one or two spare wheels in the back. Like my previous MOC, it will all be controlled by BuWizz. Photo: Update: I initially planned this MOC in late 2020 but decided to cancel it after challenges arose. I revived the project with a smaller scale, simpler drivetrain, and newer Technic panels.
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I have built two Lego Technic supercars in the past - both of which were motorized and featured SBrick control. Since both proved to have an interesting building process, I decided to make my second MOC to this year's BrickFair Virginia a mid-engine supercar. The building process involved lots of Trial-and-error, the most apparent being completely redesigning the chassis from scratch and streamlining the chassis in its early stages. I've also changed up the interior many times, especially the seats, dash, and underside panels. The car is driven by 2 PF L motors located very close to the rear axle - giving it a very efficient drivetrain. The drive motors are also connected to a V8 piston engine which can be accessed by opening the rear hatch. Steering is done by a PF servo motor, and I decided to use the newer steering hubs in the front. The car also features full independent suspension, with 1 shock absorber per wheel in the front and 2 per wheel in the rear. The power source is the 8878 rechargeable battery, located conveniently behind the rear axle. As for the aesthetics, this model contains plenty of angled connections - most of which are done by angled connectors. This was especially true for the front end, where plenty of angled connections were used to get the smooth, rounded shape of a supercar. I also used plenty of flex axles in the bodywork, especially for the wheel arches and windshield. The roof used 3x13 curved panels to get a more rounded shape, and since they are currently not available in red I went with black which resulted in a two-tone body I'm very happy with. The only part I'm not so happy about is the rear hatch, since the black panels seem to be just placed on there randomly. I also felt like the interior could have used a bit more detail. but overall I'm happy with how the model turned out aesthetically. This MOC was a MOC full of trial-and-error but ultimately turned out to be something I'm really happy with. Comparing it to my earliest MOCs (and even my previous supercars), I see that I have come a long ways over the past 5 years. Looking at the results, this model seems to resemble most closely an Acura NSX even though I didn't really have a "goal" car in mind as I built it. Although this was a MOC primarily concerned with aesthetics, it isn't so lacking in functionality either as it is not only motorized but also features the opening rear hatch which I never planned to include in the beginning. Overall it was a great MOC and building experience and I'm excited to display it at BrickFair Virginia this year. Video: Photos:
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Hey guys, here's a project I've been working on for the past couple of weeks. It will be my second MOC to BrickFair Virginia this summer, along with my Kenworth T600 that I just finished. This MOC will be a sequel to my V6 Supercar from 2017. As you can see the V8 piston engine is already in place. It will, of course, be a mid-engine supercar, with the engine clearly visible from the rear window. It is going to be a motorized MOC, as seen by the two L motors already in place. It will also include SBrick control, although I don't plan on motorizing anything other than drive and steering as it could make things more complicated. At this point the rear of the chassis is pretty much complete, with two L motors connected to a 2-speed gearbox that will be controlled manually. The gearbox's output bypasses the engine via u-joints and connects to the rear differential, while the engine is connected directly to the drive motors via a gear train behind the rear axle. As of right now, my plans for this MOC include: Red body with black roof Red rims with low-profile tires Full independent suspension Servo steering SBrick control Obviously, with less than two months to build this MOC, the building process will go pretty fast. Also because this is a more straightforward build than the Kenworth, I might not do as many WIP updates but the updates will cover more progress. Photos:
