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Showing results for tags 'Gearbox'.
Found 167 results
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[MOC] 3T Sport Sedan - Finished
Thirdwigg posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Over the past couple of months, I have very much enjoyed many of the build threads that have taken place on Eurobricks. Of note was the excellent Hammerhead thread by @Didumos69 where the build kept improving in no small part because of the feedback given by so many. In this same vein, I wanted to embark on a less ambitious project. I'll try to update as often as I can. The project is a manual sports sedan in mid-scale. Features (at this point, in order of priority): Four wheel independent suspension Rear Wheel Drive Steering (Steering Wheel, HOG) Four Doors Flat 6 Opening Bonnet Opening Trunk Toddler Safe Transmission Current Progress Basically, the dimensions are set, and the suspension will not change much. Now I'm working on a transmission, which I have not decided if it will include. A manual gearbox puts the shifter a little too high for the scale, and this sequential will fit, but the changeover location is not great, either forward or rear. I'll update this again tonight, and see what I can figure out. -
[MOC] Ultimatum GTR v10 Supercar
Pvdb posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
The Gearbox I have been playing about with some sequential gearbox ideas over the last year trying to work out how to get more than 4 gears out of the 42056 style gear system, and more importantly with realistic ratios between the gears. I thought that I was getting somewhere and decided that it was finally time to build a new car around this new gearbox, however, the first iteration gearbox was not up to scratch, so I put it to one side, spent last summer working on my house, and came back to it in the autumn determined to make it work. The other key design aspect was that this all had to fit within a 1:10 scale model, with the engine not mounted ridiculously high. The solution I came up with has a lot of gears in it (mostly idlers) but it works well, and is geared so that 1st gear doesn't just lock up the rear wheels when the car is pushed along. This version has reverse, neutral and 5 forward gears. 1st-2nd - 1.667 step ratio 2nd-3rd - 1.333 step ratio 3rd-4th - 1.250 step ratio 4th-5th - 1.200 step ratio The Supercar This time I decided that it would be my own design, but there were a few ideas from a few real cars that influenced the outcome, the car also adapts and builds on some ideas presented in other recent MOCs such as the gear shift/selector by Didumos69, Here are some pictures. -
Since a little moment, I wanted to make a Citroën DS for 2 reasons: This car has a very particular design and it had an innovative mecanic It has not prevously been made in Technic. So I can be the first! ^^ I wanted to reproduce all the features: Suspension Steering with the headlights moving with the wheels Height adjustment using pneumatic (Just up/down, not intermédiary) Gearbox (not defivitive yet, see below) Openable hood, trunk and doors Perhaps the body will be detachable (like the Nico71's 2CV) And a nice design! Actually, I did the chassis. It is not finished, but almost. And it was very complicated to make, this chassis! On the real car, almost all the macanic is in the front part of he car (under the hood). The problem is that it's not really possible in Lego, furthermore I wanted a chassis' height of 3 studs. So, I put the gearbox in the back of the chassis. That is working, but it's not realistic. So can you answer this question: do you like this construction, or do you perfer that I try to put a 2 speed gearbox just under the engine? Here, you can see the headlights moving with the wheels: It's simple, but we don't see that on supercars. There is not HOG yet. I don't know if it will be the steering wheel only, or if there will be one other on the dashboard. The chassis height adjustment allows almost put it down. The suspensions are soft. They give to the car a "boat" effect. And the gearbox: It is linked to the front wheels, but not actually to the engine. I wanted a DBG body, but the parts don't exist in this colour. So, it will be white. Tell me what you think about this begining!
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[MOC] Koenigsegg One:1
Pvdb posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
The Koenigsegg One:1 was introduced in 2014. Seven examples, including one prototype, were built during 2014 and 2015. This was one of the most exclusive production car programs ever envisaged in the car industry. The hp-to-kg curb weight ratio is an astonishing 1:1. This has been called the “dream” equation, previously thought impossible when it comes to fully road legal and usable sports cars. The One:1 is the first homologated production car in the world with one Megawatt of power, thereby making it the world´s first series produced Megacar. More on the One:1 at http://koenigsegg.com/one1/ This car grabbed my attention about a year ago so I decided to try to build it. The design parameters that I want to achieve include the following: Replicate the rear triplex suspension set up of the Koenigsegg One:1 as closely as possible Replicate the front suspension set up Syncro dihedral door hinges which are typically Koenigsegg Paddle shift gearbox - a new challenge for me. A good approximation of the real car with the bodywork. Tough enough to withstand my young three year old playing with it. Intuitive enough for my kids to explore the functions. After a long build process and lots of experimentation I am really happy with the end result. The paddle shift gear box ended up being 3 speed plus reverse mainly due to space restrictions and also complexity. Perhaps a future project will be to expand this concept to include additional gears. The paddle shifts at the steering wheel are aesthetic in that they are linked to the actual manual shifters which are camouflaged on top of the dashboard, but it is not really possible to exert enough force on the dash paddles to change gear. This is presented in the images below and in the CAD image. Over time I will digitise this and add a bit of video to show the functions, but first, here are some pictures. [TBC] -
What with a certain company ripping off my Koenigsegg One:1 and making a pretty bad job of it at that if you have seen some of their marketing photo's where the flex axles bend into strange shapes. Also due to the fact that my own Lego version started to look a bit shabby when parked next to the more recent Ultimatum GTR V10, i decided to do a major upgrade, basically start over, but this time without trying so hard to replicate the real Koenigsegg, but rather with the aim of making a Koenigsegg based car that is designed more with the aim of making it look good in Lego Technic (we will see how that turns out!) I will be aiming to replicate the Koenigsegg suspension, slight tweaks to my previous rear suspension and a major improvement to the previous front suspension to make it stiffer. I am looking at a combination of my previous 3+R (fake) paddle shift gear box from the Koenigsegg, and the Ultimatum's improved 5+N+R. I have already designed a compromise 4+N+R to fit under the 8 cylinder engine. I just have to work out the shifter mechanism. The engine will be 1 stud lower than the previous Koenigsegg The doors MUST use the same mechanism as the previous Koenigsegg, but I am looking to change the method to actuate them. The roof needs to be at least 1 stud lower than previous (that was my main issue with the bodywork of the previous Koenigsegg when standing it next to the Ultimatum) and here I may move slightly away from the real Koengsegg design, I will see where it all takes me. Again it will be 1:10 scale or thereabouts as I am not yet that inspired to work at 1:8 as I like the challenge of less space to work with. The back end is in progress, and while it looks similar to the previous Koenigsegg, virtually every part has been re-designed and I think significantly improved, so far, I am having fun.
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[WIP] 2017 Ariel Nomad Tactical [Prototype Chassis! VIDEO!!!]
Leonardo da Bricki posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I have finally got around to announcing my 40th Anniversary of Technic build! I am going to be making my first fully manual model in honor of the early Technic models. I am planning to build a 2017 Ariel Nomad Tactical, which is essentially a supercharged, street-legal sand-rail/Group B racer hybrid. The Real Thing: Ariel Nomad Ariel Nomad As you can see, it is a pretty awesome vehicle. It can do 0-60mph in 3.4 seconds, 0-100mph in 8.4 seconds, and it has a top speed of 125mph. It is rear-wheel drive only with a 6+R manual transmission, chain-driven by an inline 4-cylinder 2.4L K24 Honda i-VTEC engine, transversely mounted over the rear axle which produces 235bph (which can be upped with an optional supercharger) and 300lb-ft of torque. It is built for off-roading, as it has long-travel, unequal length, double-wishbone suspension, with Bilstein shocks, and approach/departure angles of 71 and 82 degrees respectively. To top all that off, it comes in whatever color you want it to. And the whole thing weighs less than 1500lb. Who wouldn't want one?! For more info, including all the options and still more specs, check out the manufacturer's page. The Model: I am planning on a manual model with a 6-speed transmission, 3+R gearbox, HoG steering, full suspension, and hopefully a fake engine. And maybe in the future... An RC version with buggy motors! Some blueprints I am using for this model. Ariel Nomad Blueprints CURRENT PROGRESS: Gearbox Revision! All the parts are here! I have exchanged all the color vomit parts for black, it looks much better now! I am streamlining the framework around the gearbox. [WIP] Ariel Nomad Chassis V2.0 -
Bugatti Chiron 1:8
Leviathan posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi everyone ! Fasten your seat belts, because today I’m reaching the top speed of 420 km/h with this replica of the Bugatti Chiron 1:8 scale ! Around 4,000 parts, a weight of 3,7 Kg it takes me 2 years of study and design to achieved it. First of all, the pictures renders are slightly different than the video content. I made some modifications (for the roof...) The french manufacturer mixed-up performances and sophisticated design for an unique masterpiece with only few units sold for. The real challenge grabbed my attention so I decided to design it. For more informations about the car, please visit : The road map includes parameters following : 1:8 scale (using of 42056 tires) PFS features (powered by one Buwizz ®) 7 speeds Dual-Clutch Gearbox (DSG) Full 4WD transmission A good approximation of the bodywork Active spoiler feature A high rigid chassis Modular assembly This MOC includes a lot of characteristics as well basics manual ones that more complex ones. But first, here are some pictures below : Main features : Dimensions : 56 x 24 x 16 cm Weight : 3,7 Kg Power supply : 1 Buwizz with easy access Motorisation : 5 mottons Independent suspensions Manual ones : Openable doors with locking system, and openable hood by friction Steering HOG Unplugable motorisation (RC motors and steering ) for playability because the car is very heavy ! Openable trunk providing self-invented W16 engine details and Buwizz access Openable gloves box… …hidding a secret key witch unlock nice PFS features ! (insipired by the real top speed key) After a long build process, I’m very proud of the result. During development, I decided to put an additional feature to improve playability : a small lever to unplug motorisation. Indeed, the car is very heavy so you can’t move it easily. From wheels to the drive train and the 2 RC motors, the high gear reduction lock any movement. The secret key system create some kind of manual interaction allowing selection between 2 motorised features powered by one M motor : Spoiler extension (3 handling modes reachable) Adjustable suspension in height I’ve made a small video to illustrate spoiler mechanism : I found inspiration on Pipasseyoyo Bugatti Veyron system for height setting https://www.youtube.com/watch?v=eaX5JLdBcyg. Irreversibility is performed by 4 worms screw, one for each axle. http://www.techlug.fr/Forum/topic10504.html I assume all similarity with @Didumos69 anti-roll bar and torsion bars system on the front axle. His advanced setup is very strong and reliable. https://www.eurobricks.com/forum/index.php?/forums/topic/143038-moc-rugged-supercar-hammerhead-19-scale/ Remote ones : 5 motors : 2x RC motors / 2x M motors / 1x XL motor 7 speeds Dual-Clutch Gearbox (DSG) driven by XL motor Spoiler animate by 1 M motor and its own gearbox Suspension height controlled by the same M motor Steering by 1 motor or the HOG Full 4WD transmission driven by 2 RC motors Gearbox ratios : 1st : 1:9 2nd : 1:6 3rd : 1:5,4 4th : 1:4,5 5th : 1:3 6th : 1:2 7th : 1:1,8 R : 1:9 Gearbox inspiration : @Sheepo Rubicon Jeep shifting system :http://www.sheepo.es/2016/06/jeep-wrangler-rubicon-instructions.html @ibessonov gearbox : https://rebrickable.com/mocs/MOC-5565/ibessonov/sequential-rc-4-speed-dual-clutch-gearbox-with-pf-servo-motor/#comments Other pictures : Hell yeah Enjoy pictures in HQ : https://flic.kr/s/aHsm9s9M7C And here is the video : I hope you'll like it ! I'm making instruction video for the DSG gearbox, see you soon ! -
Here is a sneak peak of one of my biggest projects up to date: Project started with a new type of a gearbox, which uses only two toothgears at any time in order to transfer power from motors efficient to the wheels: Here are a few specs of the model: Length cca. 80cm when folded Width cca. 30cm Height cca. 25cm Weight cca. 4,5 cm Dual rear live axles in the back independent suspension in front 4 electrically controlled gears + 1 additional electro-pneumatically controlled gear Working towing arm in the back capable of lifting weights of over 1kg Dynamic lights All functions controlled by 3 Sbricks Currently we have snow here and I can't shoot a video as planned I will post more info as soon as I manage to take more photos and a video.
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[WIP] Lexus LC500 EV3 1:8
StudRobotics posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is my first WIP post on EuroBricks where I will show my progress on my newest build, an EV3-powered 1:8 replica of Lexus' newest flagship coupe, the LC500. The car will most likely be a combination of both the standard and the V6 hybrid LC, but it will have a V8. The body will also be orange. Here's a photo I found of an LC that looks a lot like the one I am shooting for. Features I'm planning to add: Four or six-speed paddle-shift transmission Retractable spoiler Detailed interior Fake V8 engine (but I would like to achieve moving pistons) Full independent suspension All I built so far was the rear axle for the LC. It's exactly like the one in the Porsche 911 GT3 RS set but more reinforced. I also made the V8 engine using Lego Digital Designer. I plan to build the paddle-shifting mechanism used in Didumos' Ultimately Playable Porsche 911 GT3 RS (the one with the tilted wheel) and pair it up with a gearbox. I currently am having trouble whether to motorize his gearbox with the EV3 motors or to pick a different one with less gears and friction. I also am having a little bit of trouble finding the right front axle, though I like the one that Didumos put his Porsche because of the fact that is has two shocks for each wheel. However, I find it very difficult to fit the V8 engine in the middle since the axle is made for a rear-engine car. Here's a poorly drawn render I made of what I'm trying to achieve with the front axle. And here's the chassis in the real LC and the measurements for the LC Lego model. Overall, I'm excited about the build. I would welcome some helpful comments about the V8 engine, axles, and the gearbox I planned to use before I order pieces on BL. Once I start working on the body and aesthetics, I would appreciate some input with that as well. I can also give you the download for the .lxf file of the engine if you'd like to check it out. I look forward to replying to your comments and sharing my progress. Thank you. -
Hi ! Here is my WIP for the TC6 contest. It's a transport truck with a palfinger crane on the back. My model have 4 powered motors. I use a gearbox, so i have 7 functions motorised. - Selection of operating mode (M-motor) Driving : - Drive (XL-motor) - Steer (M-motor) - Outriggers (M-motor) Handling : - UP arm (XL-motor) - Rotate arm (M-motor) - Open arm (M-motor) + fake engine and suspension When the gearbox is in neutral, it is possible to drive in hand with HOG. And small render with LDD. Very far from the quality of Blackbird. -
Lego Technic Vagabond Sports Car MOC
TmoneyTechnic posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
To be honest this video was supposed to be my video releasing a new version of the RC Car with Sbrick along with some instructions. However, after a request for a build battle by LEGO Technic Mastermind, I have decided to postpone that video, but that will happen sometime in the future. In the meantime, I have made a rear-wheel drive sports car with an opening hood, small-cylinder V8 engine, functional headlights and taillights with PF LEDs, full independent suspension on all four wheels, a steered front axle with toe in (steered by a PF servo), and a four speed manual gearbox driven by 4 PF L-motors. To control all the powered functions, I have used two Sbricks, each connected to their own AAA battery box. I have not much else to say, just enjoy the video and photos below. -
[MOC] EV3 2017 Ford GT
TheMindGarage posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
The 2017 Ford GT is effectively a GTE race car converted to road use. After the 2016 race car won at Le Mans, exactly 50 years after Ford's historic win with the GT40, they had to build some road cars for homologation purposes. These road cars have a 3.5-litre twin-turbo Ecoboost V6 producing 647 horsepower, and an extreme amount of downforce from the active rear wing, diffusers, front splitter and those gigantic flying buttresses on the sides. The interior is sparse to reduce weight. The initial allocation sold for around $500,000 each, and Ford received more than 5,000 applications for 500 cars. Getting hold of a car is extremely difficult, and even those who are successful must wait for several years to receive their car. The recent incident of Ford announcing that they would sue John Cena for selling his car (supposedly for profit) and breaking the terms of the contract is a testament to how sought-after this car is. After several months of rather intermittent building, I've finally finished what turned out to be a prime example of how not to manage a project. Anyhow, at least the car is finished so I can get to work on building something I'll hopefully enjoy more... Initially, I planned for this to be a fast RC vehicle, using every single motor that I own. That meant three EV3 Large motors, a PF XL and a PF L for drive, an EV3 Medium for the gearbox and a PF M for the steering. However, as I chased the GT's distinctive styling, the car got heavier, more fragile and closer to the ground. In the end, the car would barely move in anything other than 1st gear, and it would scrape its bodywork on the ground. That's what happens when you change tack mid-way though a build. However, at least I think I can call this my best-looking car model to date. The car has a 4-speed sequential gearbox mounted behind the rear axle to save space and take advantage of the car's huge overhangs. There is no suspension to reduce complexity and because the model is a little too narrow for an independent driven axle to fit. All the motors in the drivetrain are hard-coupled together (yes, I know it's a little naughty, but the gear ratios are closely matched and the stresses put on them by this are probably dwarfed by the load caused by driving the car uphill). The steered axle is extremely simple with just a little return-to-center mechanism. This is in order to leave enough space for the PF battery box under the bonnet. There was just about enough room to have a convincing-looking cabin and seats, although it is considerably smaller (compared to the size of the whole car) than in real life. The rear wing is mounted on a scissor lift system to raise or lower it - there wasn't much space over the gearbox so I had to resort to using those ugly yellow beams. The doors are hinged about the A-pillars in order to give that characteristic motion, opening both upwards and outwards. An elastic band puts some tension on the mechanism and keeps the door either in the closed or in the open position. Styling-wise, the Ford GT is quite a challenging car, but at least it is more angular than curved. I did my best to focus on the characteristic features: the two big vents on the bonnet, the giant side vents and flying buttresses, the red circular brake lights and the carbon sill running along the length of the sides, part of which lifts up with the doors. I don't have that many pieces, so I had to do a few colour-mismatches, but I tried to keep to the grey theme. In the end, the car is easily-recogniseable as a GT, and that's what counts to me. Here is a video showing pictures of the car and a time-lapse of building. Unfortunately there's no driving footage (it would be pretty underwhelming anyway), but you can see the opening of the doors and raising of the rear wing. Music is composed by me as usual. My next build will be what this one failed to be: an incredibly fast RC car. This time, I'm going for minimal bodywork and no gearbox. -
RC Trabant 601
Mr Smith LEGO Models posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is a MOC. It is built in scale 1:10. Features: Front wheel drive (L motor) Steering (servo motor) 4 speed sequential gearbox (M motor for changing gears) All wheel working drum brakes (1 M motor for front and 1 for rear wheels) Full independent suspension Openable doors, bonet and trunk (which hides the small battery box) Video: Note that the car is very small (only 35 cm long) so it was quite hard to put all these functions inside. Also recognize in the video that I had to use a special solution with mounting of the differential - because of small scale. The normal solution would be too wide. -
RC Dodge Challenger SXT
Mr Smith LEGO Models posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is a MOC (my own creation). It is built in scale 1:10. I started this project one year ago and I wanted to make it as realistic as possible. The most complex part of this MOC is the 5+R sequential gearbox. It had to fit in very small space, so I had to use a new mechanism. It is driven by 4 motors: RC motor for drive, PF servo motor for steering, L motor for gearbox and M motor for lights. It has also realistic full independent suspension (I tried to replicate the real one) and doors with lock. Not like many lego cars, this has full interior with 5 seats. The front seats can move. The gearbox, steering motor, drive motor and two IR receivers are located above the front axle. The L motor for changing speeds is under the seats and the battery box is behind the rear axle. Video: Visit my youtube channel to see more of my creations! -
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[POC][WIP] Compact 90° stepper w/ instructions
Didumos69 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
After shortening the travel required to shift gears in my improved paddle shifter unit for the Porsche (42056), I put some effort in trying to use the same concept - a lever knob gear driving a central knob gear - as a base for a 90 degree stepper. I was able to make a compact setup with the shift lever directly operating the shift axle that could in turn drive the clutches of a gearbox (the gearbox is not part of this unit). By using the knob gear inside the shift lever, the rotation speed of the central knob gear is twice the rotation speed of the shift lever itself. As a result each shift requires only a relatively short travel. The stoppers that catch the upper knob gear when shifting are the crucial part of this mechanism. They had to be reliable when it comes to catching the knob gear and needed to allow for a smooth return at the sane time. The whole setup relies on its interaction with the simple 90° limiter., which has been integrated in this unit. I'm very happy with the result. EDIT: I've been working on this a little more. I'wasn't completely satisfied about the return of the shift lever. It requires a lot of silicon power and I couldn't get it working with a new set of red silicon bands. Apparently the old ones (+/- 8 years old) are stronger. So I decided to skip the auto-return completely. The return is not needed for a full shift and a completely manual operation of the shift lever gives a nice feel. Returning the lever can actually be postponed until the next shift. This also allowed me to make an even more simple version of the stepper. In that simple version a different 90° limiter now operates directly on the lower knob gear. The limiter allows for some free movement of the orange paddles, but my guess is that this won't give any trouble when they operate the clutches of the gearbox. So all together I now have two versions: The compact stepper with separate 90° limiter and the simple stepper with limiter directly applied to the lower knob gear. Compact 90° stepper with separate limiter (LXF-file) Simple 90° stepper (LXF-file) Comments and (suggestions for) improvements are welcome! -
[MOC] Motorized Cherry Picker
Anto posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi! Two years ago, I did a motorizable cherry picker for a contest on the french forum TechLUG. So, I used the comments I had, and I decided to : - Use a more little scale - Better proportions - I did a better cab. In the first MOC, it was too heavy because of the battery box inside it. - The first cherry picker was motorizable by a M motor ; this one is only motorized, more simple and efficient. To summararise : Better proportions (I hope ^^) Only motorized I use inverted gearboxes for : - Outriggers - Arm - Turn table And the manual functions : - The steering (of course) - Extension of the arm So, here's the result: The simplest function is the steering. But there is the L motor over it. So, I used three 16t gears to turn the wheels directly by their axle of rotation. And now, the gearbox. It's an inverted gearbox : the "out gears" turn in the opposite sense. So, when you invert the position of the driving ring, you invert the rotation of a function. Here are screenshots: The outriggers can up the truck: the wheels don't touch the floor. To finish, the arm. It has a triple deformable quadrilateral. I needed so much time to do it, but it's nice to see in action. And the video : -
[MOC] Sergeant JynErso's bike
steph77 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi everybody. As I was into the shop this midday I saw this set: This makes me think, even if it is a star wars figure, that this pretty girl needs a bike. A BIG bike...just like Lara Croft.... So I decided to build something different this time. And here is the result of this evening build: it is the first sketch of what the model will be, as usual. About everything is to be compacted and redesign, but this give a good idea of what is incoming. Tomorrow I will by the SW figure st to match the scale of both of them. All the ergonomic aspect of the bike will be calibrate based on the TLC figure I let my imagination do this evening, Motoguzzi inspiration mixed with old BMW/Harley frame....All is in the mix. I am pretty happy with what I came out. This give me the base and a vision for the next of the build: The main ideas are: A fully detailed enormous engine fitted into a lightweight frame and all terrain wheels. At this point I do not have any idea if I will realize back suspension or not for this model. maybe just a suspension for the Saddle ? It will have a gearbox, already sketched and installed. The sequential lever is still a question actually. I think to due to it's size, it must be realized here. I do think that this model will take me a lot of time to finished. It is a quiet unusual theme for me. But I like the challenge that it represent for me. Any comment or advice are welcome. To be continued... -
[MOC] Old Styled Race Car
Alex Ilea posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello all ! I want to present you my curent wip MOC, an old styled race car: Features will be : -suspention(checked) -HoG(checked) -steering wheel(checked) -working engine(checked) -4speed sequetial gearbox(checked) -doors(checked) -engine cover(checked) Hornestley I am building this car just to use the tumbler tires They are quite big for a chassi like this (only half a stud between chassi and them when full steering is aplied). Adding an 8 speed gearbox to this kind of a car size is quite challenging but defenatley not impossible :) Side view: Interior as of now (steering wheel by Didumos69): I hope in the end it will be strong and very playable . Any suggestions and comments are welcome :) -
[WIP] AMG GT R- A huge problem arose......
move5 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Current status: 8+N+R gearbox, D-N-R shifter, and the engine done. Also some color matchings and a little bit of interior --------------------------------------------------------------------------------------------------------------------------------------------------------- Hello, everyone. Today, I would like to introduce my new moc in progress (and the first to post here). It's Mercedes AMG GT R. (in 1:8, with porsche wheels&Tires) (From https://www.autoevolution.com/news/black-mercedes-amg-gt-r-does-insane-nurburgring-passes-110677.html) I'm planning to make it in black, as 3x11 curved black panels are available now. If amg gtr convertible model comes out, I want to try the convertible mechanism, too. My current status is only up to the drivetrain (engine&gearbox) And this is it. It's a 8 speed gearbox, with D-N-R which I built by myself. At first, I was goint to use charbel's 8 speed gearbox, which is awesome, but soon found out that the gear ratios aren't realistic (the last gear is 45 times faster than the first gear.) This gearbox is also combination of a common 4 speed gearbox and 2 speed gearbox, but different in the fact that the 2 speed gearbox is shifted every 90 degrees, and the 4speed gearbox is shifted every 180 degrees. And that resulted in a realitic gear ratio... in which the last gear is 6.25 times faster than the first gear. The hardest part was the mechanism to make one shift in the 4 speed gearbox while the paddel shift (which is not built yet) is shifted twice. The mechanism is here: Here's the sifting video: Under the chassis, you can see the D-N-R selector, which the gearstick to shift it is not built yet. As I only have times on Sunday afternoons, the progress will be very slow, but I will finish it sometime, so don't be angry even if the progress is slow. Comments are welcome, and advices are also welcome. Thanks. Oh, I missed some explanations on the gearbox. The 4 speed gearbox is just the regular one, with 1:1 to 1:5, and the 2 speed gearbox is 1:1 to 1:1.25 which doesn't work yet as currently I don't have any chains. The chains are also linked to reverse gear. -
[MOC] Airport Refueler
MikeTwo9398 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Here I present my Lego Technic Airport Refueler. Yet another airport vehicle. I wanted to build a truck with a remote controlled gear box, changing gear using a Servo motor, all wheel drive and with suspension on every axle. I started with the gearbox setup from Didumos69 used in his beautiful Rugged supercar. Ideal for use with a servo motor to change gear. But I had problems shifting down gear and slipping gears when driving. My biggest concern was the amount of space the gear box needed. The distance between the axles was to large. (I wanted to build a tractor truck and not just a big truck). After a few attempts, using other examples found on the internet, I finished with a ordinary, simple inline 3 speed gear box. I had to rebuild it several times because of slipping gears….. not robust/strong enough. Shifting gear only works well during drive. Sometimes the middle gear jams causing a bad shift of gears. Finally the distance between the axles was still big, but that gave me the idea to make my truck an airport refueler truck, seen on the airport. On top of the gearbox I could place a platform lift and on top the rear axle the 5th wheel for coupling a trailer. I hardy had bricks to build the trailer, I did not want to dismantle my Mercedes Arocs (or other vehicles) because both trucks have the same scale. Therefor I used I 125 [mm] tube to create the tank on my trailer, it also saved weight. The axles of truck and trailer have suspension. Coupling the trailer is done manually. The 4x4 truck functions are controlled by the SBrick from Vengit. SBrick: 1 Drive: 2 XL motor Platform lift: 1 L motor Steering: 1 Servo motor Shifting gear: 1 Servo motor (3 different speeds). Size: Length: 110 studs - 860 [mm] Width: 21 studs - 165 [mm] Height: 28 studs - 260 [mm] platform down (about 14 studs higher with the platform lifted) Here is movie of my Refueler, hope you like it. Click here you can find more pictures. -
Lego RC Monster Truck 4x4
CrisGarage posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
It's a monster truck with a 4x4 trasmission and 2 speed gearbox powered by a SBrick. This MOC is very powerful because the first gear generates a great gear ratio. The chassis is simply and very strong and the suspensions are attacked to him. I couldn't use the "large hard shock absorbers" because i haven't them, so i used the "small soft shock absorbers". I added a V6 working motor, a rear openig hatch, and lights too! These pictures above are of the old version, in fact the axles and the position of the SBrick in the images are different from the current ones (below). The differential is removable to ensure more traction. The gearbox is very compact and strong (on that I worked a lot of time). The green axle is the input, while the red one is the output: the yellow gears are interested for the first gear and the blue ones for the second gear. The first gear has a gear ratio of 5:1 (very powerful), while the second gear has a gear ratio of 3.3:1 (balanced). The gear ratios were calculated by adding the gear ratio of the all transmission system, ie 3.3. And this is the outdoor video! I hope you enjoy my MOC! Leave a comment and a Like! ;) -
Searching for a gearbox in an LPE car
csnorbi posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
First of all, I'm completetly new here and my english isn't perfect. In the future I will start building an LPE powered car that is inspired by nicjasno and his E30. I'm not sure if I will model an existing car or create a new one, but it will be around the same size of his car. The gearbox is one thing that I just can't get over. I don't even care about how many gears it has, I mainly need reverse, because that is the only way of going backwards with an LPE car. It has to be RC controlled of course, which is easy to implement in a 1+r, but harder with more gears. The most important thing that it has to feature - smoothness and rigidity. If it isn't compact, then that's not a big deal. It will be powered by an Inline 4 LPE which revs up to 5000 rpm, so downgearing is needed as well. The other elements of the car aren't built right now because of the lacking parts, but I want to have the blueprints of the main elements of the car before I start building it. I know that I will have enough problems when I will build it, so I try to plan as much as possible before. If you have seen or have built something like this in the past, please share it with me! -
Ah, the humble gear mechanism. From as early as 1999, a gearbox has been something which has defined a Lego action figure, and arguably made it whole. Although they had an extensive hiatus, gearboxes have returned to constraction in a big way. Many MOCists are taking inspiration from the reboot of Bionicle, and are mechanising their custom creations. Some, however, aren't just using the gearboxes the Danish gods provided them with. Custom gearboxes have hit the scene, allowing for more unique functionality and animation. Ingenious methods of motion are being integrated into models which would otherwise stand static. This thread is for you to share your own custom gearboxes, or work together with other users to develop new ideas. I'll start off by sharing a few of my designs. LW2 - Designed for stability on larger figures. LW1 (not its official name) is a gearbox coined by ToaLeewan, and is the core design the LW2 adapts upon. I have used this on several models, the first being G2 Umbra. SL1 - Designed to mimic the functionality of the Slizers. Rather superfluous, but still a fun experiment. K1 - Designed for back and forth shoulder motion, which realigns via an elastic band. I've only used this on Kaikohuru. MG1 - For use on smaller figures that use the 'XT4' frame.
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2Speed + park
Aventador2004 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
my first perfect gearbox! a gearbox with two speeds, and a park function. the gearbox was made for my Air Pocket supercar. i wanted a low, flat gearbox, with two speeds and park. it is designed for a second shift section to be added for more gears, but bigger size. it has a gearing function, you can adjust first gear from 5:3 to 1:3. the 24t and 8t gears are able to be swapped for a 5:3 ratio by using the 20:12 combo. instructions here. http://bricksafe.com/pages/aventador2014/2-speedpark -
The second of my three MOC's, the Audi TT. Again, apologies for the photo's. The TT is one of my favorite cars, and I've tried to capture the design as best I can. This one has the following features: - Full independent suspension. - 6 + N + R sequential gearbox (design by liftingbricks), driven by a porsche flappy paddles. - All wheel drive and five cylinder engine. - Opening doors, bonnet and trunk. You can see more on my Flickr IMG_20170528_140525 by Russell Murphy, on Flickr IMG_20170528_140510 by Russell Murphy, on Flickr IMG_20170528_140649 by Russell Murphy, on Flickr
