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Found 145 results

  1. Dear readers, For a new project that started a while back (about a year ago), I was investigating a certain track configuration for a tracked vehicle. It pointed out that I needed a lot of ground clearance from the track wheel, but the track wheel could not be two studs wide: the tracked vehicle is only 15 studs wide and a lots of gears, motors and linkages need to be in between. As you can see, the standard wheel above is two studs wide due to a ring of 1/2 a stud that supports the track. This ring is not always necessary. In fact, the tracks barely even touch this ring under normal driving. A lot of you will recognize the difficulty with this wheel: it protrudes half a stud to both sides. In many designs, the number of horizontal studs is uneven: an M motor, XL motor, frames, differential, everything has an uneven width when measured in studs. This enables a symmetrical design as Lego Technic has no beams with even lengths (only 3, 5, 7, 9 ..). That's why many Technic designs of this day are an uneven number of studs wide. This is in contrary to the olden days, where all Technic components and widths were even. Check for example the old style liftarms, differential, frames, motors and even battery boxes. With this theory lesson over, it is easy to see why this track sprocket introduces a problem: when the wheel is mounted in the uneven Technic system (to get a nice symmetrical design with uneven Technic beams), the wheel size is even! So the wheel can not be connected to a liftarm at the place where the axle connects to the wheel. There needs to be a distance of 1 stud to any supporting liftarm. This is mostly done with a bush or a 3L thick liftarm. This also means that to mount this sprocket very strongly, the minimum width of the structure (when fit in an uneven system) is 5 studs. Then I started thinking: how nice would it be if there would be NO distance to any supporting liftarm? In that case, the sprocket has to be only 1 stud thick and the supporting structure is only 3 studs wide. Also, the support ring has to go. This is an enormous space saver when the maximum width of your vehicle is 15 studs.. I decided to draw the part in Solidworks and print it with my own 3D printer. Out of curiosity, I checked GrabCad to check whether someone got the same idea too. To my amazement, somebody had already tried this part, with the internals to be the 40 teeth gear. This is done with a reason. A standard 3D printer is generally very bad at printing axle holes. If you draw the outline of a standard Lego Technic part (that has a nice axle hole) into your 3D printed part, the part will be connected firmly inside the model(nice) while the axle is inserted into a Technic part, so no troubles with cracking plastic will occur. In short, I printed that part. It didn't work. (See image below). It turned out that every 3D printer is a little different. A tiny offset can cause a diameter difference, which then will cause friction, because the track doesn't fit around. The wheel needs to be perfect to make the solution work. That's why I decided to design my own custom sprocket wheel from scratch. This was my first 'from scratch' attempt. As you can see, the pin and axle holes do not have great quality. A revised 3D design is in the image below. As you can see, there is a large hole in the middle. This hole fits two 4185 pulley wheels (shown right) very tight. This means the vehicle is connected to a nice and round axle hole, while the 3D printed part is also fit very well to the vehicle. The sprocket diameter is not arbitrary as the number of 'lobes' is fixed: there are no half lobes, otherwise the wheel won't work.. That means that for the same tracks, a limited number of wheel diameters exist. As you can see, there is a slight ring in the 1 stud wide sprocket wheel, not all track support is gone. The 3D printed results: I was really happy with the quality of this wheel, the drawbacks from 3D printing don't show up and the wheel is very strong and straight. In the image below, is is visible that the tracks fit very smoothly around without additional friction. It is also visible that the wheel is just as wide as two pulley wheels, so one stud. I was so amazed when the 42095 set was launched. There was my not-published-about part, exactly the same size, in a real Technic model! And now there will be 4 DBG ones in the 42100 Liebherr, which will drop the price. There is one 'slight' drawback though. My 3D printed wheel is only one stud wide, needing only a frame of 3 studs wide to support it. The new 42100 sprocket wheel has the 1/2 stud ring protruding out of it on both sides, taking the drawback of the old wheel onto the new wheel. That's a pity. It could have been so nice. Then comes the question: why would you 3D print parts? That's cheating. And I agree. It is cheating. I never do this in my models. You are allowed to check my YouTube. I even built of a 3D printed way of getting three axles through a Lego Technic turntable but never used the solution as I do like pure models. Then, why am I doing it now? Because currently, I'm using Lego Technic as a strong platform for a scale model that requires 100% of the quality of Lego Technic, but cannot do without adding custom parts. Even the most skilled builder cannot work his way round sprocket wheels that don't exist. That's why I see it as an engineering project, and from that prospect, creating your own parts (when all else fails or doesn't exist!!) does not show lack of skill but broadness of view.. Surprisingly, some other minds thought alike and brought a Lego Technic wheel of the same size on the market. Too bad.. Let's start building and stay thinking!
  2. Pan Dong presents. New mini truck, they are based on Unimog trucks. 4 wheel steering, this function is the focus of the building. Short wheelbase, portal axles, lightweight body. Two chassis models, like a RC car, one has server motor for steering, the other linear actuator and M motor . But , Both have the problem of turning to the imaginary position. L motor x2 for drive. I hope you'll like it.thankyou for watching. 樂高科技迷你卡車,Unimog 406/427,董攀設計,謝謝觀看! 這次拼裝的重點,在相對較短的軸距,實現四輪轉向,然後輕量化車身結構,模擬RC車的懸架扭動姿態。有兩種底盤模式,一個採用伺服馬達轉向,另一個是小推桿加M馬達。兩個L馬達驅動,RC輪胎。四輪轉向真是靈活很多,攀爬時候的優勢明顯,不過因為前後各採用兩組萬向節傳動,導致有明顯的虛位問題。伺服馬達轉向,效率直接,但是轉向有類似軸效應現象,車頭會左右擺動。小推桿加M馬達的組合,姿態很棒,不過向上攀爬時後橋壓力大,還是建議採用不轉向的後橋,會更加結實可靠。 Unimog 427 Unimog 406
  3. keymaker

    [MOC] KrAZ-255

    Hi, I would like to present you my last creation - russian truck KrAZ-255. I was inspired by the model which is available in PC game: Spintires. The truck is built in scale 1:23. I tried to implement some key features of real truck, like suspension, drive train, details like engine and easy aplicable additions, which are present in the game. Enjoy :) Some details: - weight: 995g - dimensions LxWxH: 49x15x18 studs (without mirrors and additions) - live axle suspension - separate drive shaft for each axle - 6x6 drive, no diffs (L motor) - steering (M motor) - front and rear lights - working fake V8 engine - openable hood and doors - additions! There are some additions too! All of them are easy to connect or disconnect to swap to another. The first is simple crate: The second addition is prepared to wood transportation: The last one is the most advanced one - the crane. It is also partially remotely controlled. Functions: - rising/lowering two sections of the arm - crane rotation - gripper rotation - gripper closing/opening - extendable and lockable outriggers - openable maintenance section More photos: https://bricksafe.com/pages/keymaker/4.-kraz-255 Video: I hope you like it :)
  4. Hi! I can't miss the contest about Mars colonization :) My first idea was to create scientific vehicle to gather interesting objects on Mars surface. I take two Xerion tires, two more.. and I've stopped when all 16 Xerion tires were placed on my table. The transmission was very simple but steering system would be very complex. Suddenly I've remembered that I have many sport plans on this summer, and I simply have not enough time to finish this monster. Ok, let's build something smaller :) As far as I know, the first stage of colonization is complete due to this strange machine: Now we can find many roads, tunnels and construction places on Mars. My new model will deliver materials from spaceports to construction places and storages. The first prototype will have 6 wheels and AWD for high performance. Now I'm waiting for nuclear reactor for my vehicle :) To be continued...
  5. Hi, legofans! I have always been interested in American cars 70-80 years. In the list of some of the most unusual, I would place this here! Get acquainted my new creation of 2019 - Lego Chevrolet Silverado K30 Dually Crew Cab (Big Dooley) 4x4 lifted (absolute champion in title length) 1:13 Scale model of 1986 Chevrolet Silverado K30 crew cab dually. All wheel drive on two solid axles and 6 wheels with 68 mm RC4WD tires (copy of BF Goodrich A/T KO1) The modular design (body cabin and chassis are separate elements connected by 7 points) Electrics include: BuWizz, XL motor, M motor and LED lights Specifications: 1:13 Scale All wheel drive 68 mm RC4WD tires (copy of BF Goodrich A/T KO1) Solid Axles The modular design (body cabin and chassis are separate elements connected by 7 points) Electrics: BuWizz brick (or AAA Lego battery box/LiPo unit + IR V2 Reciever/SBrick) – battery and receiver XL motor - movement M motor – steering 2 LED lights iOS/Android smartphone/pad with BuWizz app – Remote control More information and photos you can find on my blog page. Building instruction is available now Video:
  6. Great Ball Pit

    [GBC] Upslide

    I forgot to post this last week, here's my latest module Upslide. It uses a helical pusher to push balls up a friends slide, and it's powered by a PF M Motor. I tried to run it at BrickCan this weekend, but it only performed for a few hours before having a bunch of issues I'll need to fix. I need to reinforce the input bin walls, tweak the output at the top of the slide, and fix a small gearing issue for the helical drive. Stay tuned for a version 2.
  7. Hi! I'm glad to present my motorized modification of 42094 set. It has six remote controlled functions with two S-bricks. Here is exemplary part list: And here is short review and functions demonstration: Photos in high resolution: https://www.flickr.com/photos/141718063@N06/albums/72157705982003774 Thanks for watching!
  8. Hello everyone! In this thread I would like to introduce you to my lego technic pistebully. I tried to build as detailed a model as possible, and now, after 6 months, I'm done. The remote-controlled features are: Driving lift/lower snowplate tilt snowplate turning snowplate Alpineflexfräße lower/lift alpineflexfräße activate I hope the pictures are ok : Her is the Link to the Video that i was made:
  9. Hello everyone, I made this pick-up almost two months ago (before I joined Eurobricks) and I would really like to hear your thoughts about it. It is 50 studs long, 28 studs wide, 15 studs high and weighs 1285g. Motorized and remotely controlled - 2L motors (driving), stereo motor (steering), 8878 battery, V2 IR receiver. Front tires from 8070 supercar, rear from 42000 Grand Prix Racer. Working V8 fake engine with some details to make it resemble real V8 engine, connected directly to the driving motors - works at the same speed no matter what gear you choose (in neutral also). Suicide doors with working door handles, Rear doors and roof window can be opened. Fake fuel tank and chrome stripes in the cargo area. Power is transmitted to the rear wheels through 4 gears manual gearbox. Leaf spring suspension with height-adjustable rear (manual with levers in the cargo area). Working turn signals (front and rear) - connected to a servo motor via coupled PF switches. Working steering wheel. Other details and functions that I would like to point out: Retractable license plate (simple manual mechanism). Lights (front and rear) manually controlled with a lever behind steering wheel - connected to a speed dial of 8878 battery (on/off and low/high beam). Working radiator fan, connected directly to a V8 engine. Video of functions: Video of driving outdoors (added 14 August 2014): More photos can be found at: MOCpages - http://www.mocpages.com/moc.php/391803 Flickr - https://www.flickr.c...57645075634267/ I hope you`ll like it…
  10. Hi I'm L, still mainly play with PF1 motor even PF2 has been released for now With the PF2(new electrical system that broke the old lego paradigm) PF1 motor are no longer likely to come out anymore Imao So I'd like to make compatible motor for the PF1 electric building system myself consider the proper shapes, specifications, and placement of the wires and while im making it, i wanna make it really good and nice to use, over lego motor to acieve it, I want to hear the user's reaction or wish. I look forward to hearing from your idea Question here 1. Which is more important (1) Torque(strength) (2) Speed 2. Size(Size and torques are in semi-parallel relationship) (1) 2x2(Micro motor size) (2) 2x4(S size) (3) PF Series's was fine, just need more torque 3. Shape (1) Round (Like XL Motor) (2) Square(Like Old Lego Motor) (3) Oval(Like M Motor, Flat Bottom Type) 4. Building type (1) Pin & Hole (2) Stud & Tube (3) Axle & Axle Hole 5. the unit of length (1) odd number(etc. 3x5x5) (2) even number(etc. 2x4x4) 6. Power Supply Method (1)PF1 (2)PF2 and last, I'm going to post it on the crowdfunding site if it's a good response after I've made the motor brick prototype. So what if there was a third-party motor with better performance? 1) If the performance is good, it can be purchased. 2) Because it is not Lego, it is not purchased. thanks for your asnwer and have a nice day~ and any critical, basic ideas are always welcome from L
  11. in this topic i wanns hear about the shortage of Lego motor and your ideas the subject discussion will be based on the Powerfunctions series motor & Powered Up Series motor and the contents are here 1. Size Compared to Old Motor, Powerfunctions & Powered Motors are bigger with planetary gear(to get more torqe However, instead of getting enough torque, sometimes the size of motor is too big and need your idea or opinion about it(like problem with big size or nice experience) 2. Shape(or design) there was an idea(M motor was oval type, and L&XL Motor were difficult to hold conrrecly because of the round shape) the Old lego, on the other hand, close to rectangle write any idea on it please :) 3. Building system(Coupling method) its really nice for me but sometimes the rc car's wheel was disassembled while running because of coherence weakness and hope the coherence of Pin & hole was more stronger. write any idea or your experience on it too please :) 4. specifications Imao the most frustrating part is specification especially torque i saw that many ppl use motor in parallel to get enough torque or just satisfied with just moving even slowly I'd like to hear your opinions. Thank you.
  12. Great Ball Pit

    LEGO Boost Pachinko GBC

    Ask me anything about my Lego Boost GBC Pachinko module. It has a jackpot payout when the ball goes into the jackpot area. The conveyor is run with the Boost external motor, and the onboard hub motors are controlling the aiming mechanism and the jackpot payout door. Video below
  13. Hi everyone, Finally, I have finished a project which I was building since last September. It is the scale model of the Intrac 2011 snow blower which is/was often used in the swiss alps by the army and other communal parties. It was the aim to create another working snow blower after the success of the snow blower from last winter. The blower is powered by three buggy-motors which are all controlled by a separate Sbrick. Each track is driven by two PF XL motors. The snow blower shoot direction is controlled by two 9-volt micro motors and the height of the snow blower by one PF L motor. As power source I used two Buwizz as battery or a custom lipo battery. After a certain time in the cold I had the replace the Buwizz with the custom lipo battery. Cheers FT
  14. Review and instructions: Hi! I’m glad to show my new MOC – it’s Merlo Roto Telehandler in 1:11 scale. Here you can see the real machine: The dimensions: 80 x 25 x 30 cm, total weight – 5,7 kg. The max height is 83 cm. The model contains approximately 5100 parts. The model has eight remote controlled functions (three S-bricks, 14 motors). 1. Four L-motors for AWD with diffs. 2. Two servo-motors with independent control for steering. We can steer normal, with reduced radius or crab. 3. Outriggers deploying – two M-motors. 4. Superstructure rotation – one XL-motor. 5. Boom raising – two M-motors. The boom is rather heavy it can’t lift significant additional weights. 6. Boom extension – one M-motor. 7. The rigs operation – one M-motor. I’ve created classic fork and crane. 8. Cab lift for visibility improvement. In addition to motorized functions the model has suspension with solid axles (eight hard shock absorbers), detailed cab and other cool features. Let’s watch the video: Photos: More photos on Flickr.com: https://www.flickr.com/photos/141718063@N06/albums/72157687306220840 The building instructions are almost finished. Thanks for watching! I hope you like it :)
  15. This Zip Line Machine can make a zip line up to 6 meters long. It doesn't need any extra grip support to strain the rope. That causes its compatibility and possibility of traveling with it and building ziplines anywhere. The tutorial video available soon!
  16. The topic is updated with detailed review: Hi! I’m glad to show you my new MOC made for Lego and Volvo contest. The task was “Build construction equipment of the future”. My little pet was designed special for Mars developing. Artificial intelligence allows this machine to perform different operations simultaneously. This monster replaces excavator, loader, tunneler, dozer. It can be used for road construction, tunnel boring, preparation of construction sites and many other tasks. All-around lighting system and cameras form 3D vision of the surrounding scene in a wide electromagnetic spectrum. Because of low solar irradiance on Mars the machine is powered by a compact nuclear reactor. Model features: 100 x 36 x 45 cm, weight - 7.4 kg. The model contains 16 motors. 1. Chassis - All-track drive (4x XL-motor) - Independent steering for crab mode up to 90 degrees and zero turning radius (4x M-motor) - Central pylon has an automatic leveling system. The tilt sensor is the weight on a pendant. If lengthwise tilt occurs the weight turns the motor on (buggy motor, I just have no wires for PF motors). The motor is interfaced with four linear actuators which level the superstructure - Central pylon has two co-axial independent turntables for different equipment 2. Loader - 360 degrees rotation (M-motor) - Boom lifting mechanism (L-motor) - Boom extension with synchronized counterweight movement (mechanical binding, M-motor) - Bucket loading and unloading (M-motor) 3. Tunneler - 360 degrees rotation (M-motor) - Boom tilting mechanism (L-motor) - Drilling head has five types of movement (XL-motor). The central part rotates fast in forward direction, the second part – in opposite direction, the third part – slowly in forward direction, eight additional cutters rotate in perpendicular plane. In addition, the whole drilling head unit moves in a reciprocating manner like a puncher - Because of absence of liquid water on Mars I suggest to use a huge vacuum cleaner to remove dust from drilling (you can see six working propellers near the drilling head) All the functions have remote control except for the leveling system – it operates automatically. Please enjoy the video: Thanks for watching!
  17. Hello everybody! I hasten to introduce you to a new job: Pneumatic Disc Brakes Lego Technic. In work details were modified. Try to bet on Chiron. Disks I have no) Subscribe to the Shannel / Подписывайтесь на Канал YouTube - Subscribe
  18. LEGO ADAM

    LEGO tripod

    This Lego tripod Is really useful if you want to make smooth clips, avoid shaky videos and even when you have to capture some really fast movements. It is compatible with most of the common phones because of its elastic phone holder. You should also use this LEGO tripod when you want to make a good timelapse because it stays stuck in the position, you need, because of the pneumatic piston placed opposite the handle. If you want to build this tripod follow the instructions in this tutorial:
  19. I built this dump truck, because I have an excavator and the LEGO bucket wheel excavator, and I just needed a truck to have the complete construction side vehicle park. This truck has 3 axles, one in front and two rear. It has one xl motor to keep the truck going forward, one L motor to power the bed lift cylinder and a servo motor to steer. Its powered by Sbrick because it needs to have more than one speed to operate with the truck, otherwise, it would be so hard to operate the truck at small places. Here is the link for the video of it, I hope you like it.
  20. LegoEmbodiment

    Lego Pneumatic Engine

    https://youtu.be/UFPNWZeeXQw Lego Pneumatic Engine. What is it? How to make it? The first it needs to finish Lego fake cylinder like in this video https://youtu.be/HcHneyewATE or https://youtu.be/0aZvWva41Ek. The second - to add o-ring to Lego piston like in this video https://youtu.be/wZu-l32Dajw or .
  21. SMOOTH stop motion LEGO build – LEGO Technic – 42072 WHACK! Please Subscribe to my Youtube channel and be the first to see new LEGO toys videos!
  22. Here is my Let's Build for the upcoming (08/2018) #42081 Volvo Konzept-Radlader ZEUX.Enjoy!
  23. Check out my new LEGO set video – LEGO Technic – 42071 Dozer Compactor. Please Subscribe to my Youtube channel and be the first to see new LEGO toys videos!
  24. Been a Lego fan since my younger days. I have a background in Industrial Design, worked in lighting and the commercial furniture industry for about 15 years. Purchased Lego Architecture Studio 4 years ago, while on holiday in New York. A lot of sets don't make their way downunder to New Zealand. Expanded the 'white bricks' with the help of a local Bricklink seller, enjoyed constructing a variety of architectural buildings. I have had a renewed interest in Lego Technic sets since my 7 year old daughter showed an interest in a Lego Technic Excavator 42006 that I had sitting in a bookcase. So we purchased and jointly built the Claas Xerion Tractor 42054, she enjoys seeing the mechanical side of builds come together. We have since brought the Porsche 911 GT3 RS, built it in it's standard form. Then went all out with modifications, the first being a right-hand conversion (we drive on the left-hand side of the road in New Zealand). Earlier in the year the Mack Anthem was added to the collection and we have just ordered the Bugatti Chiron, due in New Zealand in August at NZD$649.99! Looking forward to building another big car and following some of the modifications on Eurobricks. Cheers.
  25. marci95

    Box to store lego technic parts

    Hello everyone, what kind of boxes are you using to store your lego parts? I can not decide what kind and which one to get. Any recommendation? Greetings from germany.