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Found 54 results

  1. Hello Everybody My Name is Dani, im a 36 years old LEGO fanatic from Zürich Switzerland and im a brandnew eurobricks member. ;-) Im proud to introduce you my Liebherr R 9150 excavator in the scale 1:13. Yeah i know, the mining machines from Liebherr are white in real, but i like the yellow Liebherr color design much more. It is „only“ a scale model and has no functions, motors etc, cause the construction is just too heavy. I dont know the wheight exactly, but i think its about 40 pounds, this thing is HUGE. As you can see, i used alot parts, only for the black track-chains about 1200 pieces. I worked on this Monster since 3 years, of course with a lot breaks between. Effort in hours: i guess about 300. Please let me know what you think. If you have any questions, just ask. ;-)
  2. I got the Bucket Wheel Excavator in September last year, and after building it and modifying it (with Mindstorms), I dismantled it to use the pieces in my other Mindstorms creations. I'm particularly interested in the large yellow planetary gears/rings that come with the set, I hope to use them to create some sort of tank with a rotating turret. However, I'm not too sure about the geometry of the pin-holes in the rings, I don't really know where it is safe to attach a pin in a certain hole. If anyone knows of the correct geometry of the rings, it would be very helpful!
  3. Hi, all, I was planning to make a pneumatic front shovel excavator after buying 42053. Combining with the pneumatic parts of 42043, I'll have enough big cylinders for the excavator. It will be a pretty big one and fully RC is a good choice. Since this contest forbidding using PF other than driving the pumps, I chose to build a smaller one using the V1 pneumatic parts. Planned functions: 1 x L motor for pump(s) 2 x V1 big cylinders for the boom 1 x V2 thin cylinder for the stick 2 x V1 big cylinders for the bucket tilting The number of pumps and how to open the bucket are not decided yet. I aim to build this: Liebherr R9800, but it may end to a smaller type since that will look more proper at a small scale. The current progress: Advices are always welcome. Thanks for watching
  4. Hello all! I was reading the forum for quite a long now, but it didn't feel quite right to post, without proper introduction. Well, finally, let me present my first MOC here on Eurobricks: Remotely Controlled Mecalac MTX Here is the quick video showing the operation: More Pictures: Description Statistics: Weight: ~1500 g Part Count: ~1400 Dimensions: L x W x H (without boom): 300 x 140 x 220 mm Remotely Controlled Functions: Driving & Articulated Steering Continuous 360 Slewing Elevation of 1st boom section ( mLA) Elevation of 2nd boom section (LA) Sweep of the 3rd section (mLA) Elevation of the 4th section (mLA) Articulation of a Bucket (mLA) Power Functions components: 3 x L Motors 1 x Servo Motor 1 x M Motor 3 x IR Receiver 1 x AA Battery Box 1 x 9V Battery Box The color-coded render showing the drivetrain: The functions are distributed by two gearboxes - one located in the chassis with two clutches, and one in the superstructure with three clutches. The chassis gearbox is switched using the M-motor through a worm gear. The same motor controls the deployment of outriggers (Similar idea is used by Pipasseyoyo in his dump truck When the outriggers are raised, the two L motors in the chassis provide driving and steering. After the outriggers are deployed, motors drive two clutches in the superstructure gearbox. The third clutch is driven by the L - Motor located in the driver's cabin. The superstructure gearbox is controlled by a Servo. To make it work I have to get rid of most beloved Servo feature - return-to-center. Otherwise, the gearbox will be switched to neutral, each time the controls are released. The solution turned out to be pretty easy: One may say, that using the M-Motor for the gearbox would be easier and more compact. But I like the limited degree of rotation provided by the Servo, so I don't need to stop the motor precisely at the right moment. And, to be honest, after I came up with the Servo solution, I liked so much, that I'd decided to implement it besides some shortcomings. As a result, 8 functions are driven by 3 motors. But the controll requires some practice, since you need to switch the gearboxes often. And as you can see fro the video it is extremely slow. So you can't actually 'play' with it. But it works. About the development process (you can skip it, if it is enough reading for you; I haven't found a way to make a cut) After I had completed my first working MOC - a Unimog truck, I was looking to build something more technically complex, so I can put to a good use all the gears and u-joints I have accumulated in my parts collection. Well I have achieved that. In the course of the project I have ordered the additional u-joints together with a lot of gears four times, and then a little more. The inspiration came from the ingenious brick-sorting excavator by IbrahimFitzGibbon. About the same time I came across Blackbirs's Technicopedia, and was impressed with the old sets, where often several functions will be controlled by a single motor using some crazy switching mechanism. And when while on trip to Germany I saw it. Mecalac 12MTX excavator working on a narrow street in all its glory. This is it. Compact, complex, with tons of functions packed in a small space. I knew, I must build it. After I scaled the blueprints to the medium wheels I had at the moment (68.7x34R), it was obvious that the implementation at this scale will be almost impossible. Will all the motors and gearbox clutches in place where was almost no space for the structure or drive-lines. So I decided to go for it. It was extremely hard. You know, when you are completely sick of it, but something keeps you going. Every time I would start working on a new mechanism, the first version will be two or three times bigger than it should. And when after dozens of iterations it will fit, but won't work. So optimization, optimization and optimization. I have 58 LDD files for that thing, but they only reflect major changes, when I needed to start from scratch. In total it took almost three years. The main challenge was the boom. Mecalac boom have five articulation points instead of three in a traditional excavator. That means that I needed to pass four drive lines through the first rotational axis and three through the second one. Anyone who built the excavator knows how difficult it it is. I wasn't able to use u-joint for the first two axes because of the limited articulation. Additional challenge was the implementation of the third articulation point, since the axis of rotation is for that one is rotated at 90 degrees to the previous axis, and they are only few studs apart. Figuring out the way to twist the axes took a loong time. At the end I am satisfied with the result. But not more than that. It works. But you can't play with it. Because all the arm functions have a very long drive lines with a lot of gears, I had to heavily gear it down to be able to overcome all the friction. So the arm functions are extremely slow. But all the ideas work. I I really love same places in the model. Like the Servo with no-return-to-center clutch, chassis gearbox switch coupled with outriggers deployment, three u-joint passing the chassis' articulation axis at angles. There, I finally used that teeth on the old gearbox gears. Coupled with old style half bushes, it allows driving the axle directly (see the orange drive line below). And I hate Yellow color now.
  5. Here is my idea for this comp. My excavator a going to be as small as I can get it with all functions inside of it so no external hose and pump. I'm not going to base it on a particular model but just get it to resemble something like one in general. I've started with the boom and dipper arm so here is my first concept, maybe it will stay like it but its early stages. Its 2 studs wide. The biggest challenge is the 3 studs of extension from the small cylinders and getting them to achieve more than that. Boom and dipper arm raised Boom and dipper arm reached down And Bucket to body All thoughts welcome.
  6. Following up on the Zorex-220 PF-excavator, I found that there were some things that could be improved. Inspired by the colour-scheme of the USA-based Link-Belt Excavators, I started designing a new excavator. Allthough the principles and scale are basically the same as the Zorex, there are many differences: * Link Belt is based on a real existing machine, Zorex is just a typical excavator* Link Belt has fully studless chassis, completely hiding the drivetrain inside the chassis, while maintaining the suspension* Improved driving and slewing thanks to a roller.* Uses L-motor for slewing* Openable cabin-door, cabin-roof, superstructure-side-doors and opening top.* More detailed interior* Greebles mimicing the insides of the machine* Improved scaling by extending boom and tracks Link Belt & SBrick Some weeks before Lego World 2014, I was contacted by the Sbrick-team, asking if I would like to demonstrate the Sbrick at Lego World. They sent me the Sbricks and this excavator was chosen to be the test-model for there prototype-Sbricks. The tests at Lego World turned out succesfull, the model and the Bluetooth-controlled Sbricks performed well. Using an iPod Touch as controller, there was no interference with the many PF-controlled models there. Ans the Sbrick-system allows you to controll the speed of the motors, making the controll very precise and more realistic. So when I started making instructions, 2 versions had to be made: 1 for the PF-version and 1 for the SBrick-version. Find out all about Sbrick at and Instructions Full building-instructions are available for at http://jurgenstechni...nstructies.html Parts lists http://jurgenstechni...Parts
  7. Hi guys! Herre is my entry for the pneumatic contest. It's a volvo wheeled excavator. I was not really happy witthe new volvo excavator o I have decided to make my own Fonctions are: (Frame) HOG at the rear of the chassis; Rear stabilizers; Front blade (Turret) PF pneumatic pump operated by m motor First boom section (large pneumatic cylinder) Second boom section (large pneumatic cylinder) Bucket (Medium pneumatic cylinder) Here are the pictures: I hope you like this if you have any questions don't hesitate to post! Have a good day!
  8. Here are a few examples of what you can do with the Volvo EW160E (when it's in stores within the next few weeks!) A trailer: Forklift: Broader/Twin Tyres (preferably those from 8235 Front End Loader for example!) Grappling Claw Small Bucket Scoop Anything else you could imagine? Regards, Ryan J Smith.
  9. Here's my model of a classic Liebherr exavator. I'm not overly happy with it, but my primary goal - full remote control of all pneumatics with a high degree of accuracy - was achieved. Oh, and that custom LED beacon is available here: Photos & reading:
  10. Please note: this is not my creation I was aimlessly looking at Lego Technic stuff on youtube and came across this: I haven't found it on here, but I thought you guys would be interested to see the mechanisms, as they look very complex for such a small model , plus the fact it looks so cool It is also vote-able on cuusoo: Thoughts?
  11. Just an excavator fully operated from its 3 exhaust. It has 4 functions with hood to see the gears , rotation, first arm with 2 small L.A. and second arm with another small L.A. for the arm-bucket combined function. Maybe it would be nice to make instructions and a video. Forgive the photos I have neither my camera or my computer thank you.
  12. I had unfinished the MOC and this is the perfect excuse to finish and make it better. Let me know Jim if there is something wrong, there is an old topic about it but I never finished it.
  13. Hello guys! I decided to participate in the [TC5] Challenge, and for this challenge I'm using 8071 Bucket truck And my C model is a Wheeled excavator. I wonder why does the TLG always make tracked excavators instead of wheeled ones. Functions: Working Steering via the gear on the back Front grader can be raised up or down Feet on the back side can be lowered, and raised Rotation of the upper structure via the gear on the side Boom can be raised and lowered Bucket is fully operational too Here you can see that functions are controlled by yellow gears on the right side of the excavator. The brown gear at the back controls steering. Front grader and rear feet are controlled manually. Close up shot of the rear feet and a closer look of the bucket And the spare part photo - 55 parts left Video of functions can be found here (Older version of my model is seen in the video + sorry for the low quality)�� Leave comments and tell me what you think. Good day everyone!
  14. TheItalianBrick


    Hello everybody, please read carefully: as I only had 3 hours to play with my legos I came out with this "non serious try" , it's not intended to win, not to compete at all, I simply had fun doing it and from the bad picture and the "too many" left over parts you can guess I didn't try hard!! But there it is :grin: Sets used: + Hopefully something like this so there we go now! Sorry for the bad quality, taken with my Ipad. I'm off for my holiday now so won't be able to make better ones, neither to work or modify the moc itself! adjustable legs and foldable tracks as the real one!!! It can adapt to rough terrain aswell! OMG it can climb a 42000 tyre!!!! No gears involved as otherwise it would be too let's keep it as "low profile" :laugh: It can also bend forward! I know it looks like it's get on its knees.....but NO! Here the left over parts! Too many as you can see....I really should have tried harder :cry_sad: Thanks anyway, next time I'll make sure I'll come out with something nicer and more "professional"
  15. Hello, after years of only reading occasionally at Eurobricks it is time to present my latest MOC at Eurobricks: A caterpillar 365C ultra high demolition excavator. (If the youtube video disappeared: )It started with excavator 8043. But I did not like the bucket, because playing with this bucket is difficult. In most cases LEGO bricks will not get into the bucket but will just be pushed away. So I searched for alternatives and I came across demolition excavators. A LEGO demolition excavator would be great. And this demolition excavator should be able to demolish a LEGO house, this would be incredible. But is this possible? I realized quickly: this is not just a 8043 modification, this requires a complete new design. I started with the jaw. This has to be very small. If the jaw is too long, it will be impossible to breakaway Lego bricks. And the jaw must be turnable about 180° to demolish ceilings and walls at different heights. The clamping force should not depend on the angle position of the jaw, bricks should not drop from the jaw when the jaw is moved. After some trials I found a solution using a string (well visible in the video). I built a prototype with this string solution and made a trial: will the clamping force be high enough to enable the jaw disassembling a 1x8 brick? Yes! The clamping force is just enough. So I could answer the question of principle: it is possible to demolish a LEGO house with a LEGO excavator. As the next step I designed the bucket arm. This should contain two power function M-motors and friction clutches for closing the jaw and for moving the jaw. For both functions maximum power is required without overstressing the M-motors. The bucket arm should not be wider than 5 studs. I took some time, but the design of the bucket arm was not so difficult. Then I designed the undercarriage. I adopted the design principle of Jurgen Krooshoops 8043 modification and put the gear reduction into the undercarriage. In comparison with the undercarriage of the 8043 I designed a considerable longer undercarriage. Now the most difficult part: the upper structure. Main task: lifting the boom. As a first trial I used three linear actuators parallel. The upper structure was made mainly of liftarms. During the first trial I heard a lot of clicks, but the boom did not lift a little bit. I enforced the gear box, but all subsequent trials just ended up with ugly noises. The required force for lifting the boom was just too high. So I increased the distance between the lower linear actuator bearing point and the boom bearing point. So there is less force necessary for lifting the boom. But now the adjustment range of the linear actuators is not sufficient for lifting the boom vertically. So I added two additional linear actuators to archive the required adjustment range. In total I use now 4 linear actuators for lifting the boom. I designed the gearbox inside the upper structure following these principles: - use of technic bricks instead of liftarms wherever possible - bearing of gears on both sides of the gears, it must be impossible for gears to move apart Next trial: the XL-motor is moaning a little bit, but the boom is lifting. Hip, Hip, Hooray! Now I started with detailed design of the upper structure, finally 2 XL-motors, 4 M-motors, 4 IR receiver and 2 battery boxes have to be placed inside the upper structure. Two battery boxes? Yes, I need the weight of two battery boxes as counterweight and the electric power should last for at least one day during an exhibition. As I did not have all required parts in yellow I built the excavator with available parts. So right now the excavator design was finished, but the excavator was multicoloured. As next step I built the excavator in ML Cad. During this step some improvements were implemented. After finishing this I knew exactly which parts I needed and I bought them. And then I did something I really like: building a MOC following a building instruction I created on my own. Last I created stickers and then my demolition excavator was complete. This demolition excavator was designed for demolishing a LEGO house, so I needed a house for demolishing. Of course not a single family house, I needed a tower building. Based on pictures of real tower buildings and a reasonable floor plan I built a tower house in ML Cad. And then I bought the worst available parts, the house must not look like new, it should look like ready for demolishing. Building the tower building according to the ML Cad building instruction was not difficulty, it just took quite a lot of time as 11,000 parts had to be assembled. At the end tower building and excavator were ready just in time for the LEGO FanWelt Exhibition. Kind Regards Ludger PS: Demolishing the tower building with the excavator is fun for hours.
  16. Like the 8043 but with 6 L.A.s. Tracks, rotation, gearbox are ok, I have to build a lighter bucket, carry trasmision to the second arm and think about a special linkage to achieve more travel for the first arm, a lot of work but very entertaining. Maybe I could build a normal undercarriage in the case someone want to build it.
  17. Hi, my name is Tommaso Bocchietti and this is my first LEGO creaton. Please vote me at: *link removed*
  18. Hi Folks, Many, many years ago I started the process of creating instructions for one of my models, the JCB JS220 excavator. Unfortunately I was unable to convert the complex CAD files to instructions due to technical problems, but Eric Albrecht (Blakbird) has stepped in and made it work. So after an incredible amount of work from Eric and myself, it is with great pleasure I finally announce they are ready, and can now be downloaded. Eric has done an amazing job on the rendering, and the instructions are of the highest quality. They can be downloaded from Crowkiller's website for a small charge at the following link; http://www.crowkille...F-JCB-excavator Enjoy! Jennifer
  19. Hi! After completing my Swingloader Mk III, I haven't had a lot of time to build something big, so I tried my hands on something small instead. I made this a couple of days ago, trying to get a lot of technical (albeit simple) features into a small package! I tried to make it a scale comparable to that of this years' constructon crew set, and here it is next to that set's excavator Most of the features are explained in the next picture, except the second stage of the dipper, which is lifted manually. Here is an underside shot, showing the track extending mechanism. Not the sturdiest of designs, but more than enough. Higher resolution images can be found in my Bricksafe folder I will be making an LDD file, if anyone is interested.. Lastly, I actually made a video BEFORE making the topic, so here you go, showing all features (I think)
  20. Hoi hoi Here the photo's of the Atlas rail-road excavator for narrow track rail. The model is based on the Atlas 220 WWR "Sterke Hufter" (Strong **hole) Normely it's working under the rail catenary and have no problem to lift 10 ton whit the boom completly set out to the frond. I don't now or there realy exists a narrow track model but this model is made for Lego rails. One thing that is not correct on the model is the pneumatic cilinders, The real model have underlying cylinders, On my model the are situated on top of the boom. All the boom functions are pneumatic, The rail wheels can go up and douwn by small air cylinders. It roles and turn manual, Made als some equipment for it like a rail stabilizer, weed control unit, a hook , excavator bugget small and midium, and a jip.. Hope you like it. ps hope my post is easier to read if not pleace say so ! Part 2 Loading a truck whit air The weed control unit in action The rail stabilizer in action More photo's you can find here. Muddy
  21. Hi all! [Edit: I'll post a video and real photos later] I got some time and I made a 42004 alternate for the Rebrickable December Competition. It is a small, wheeled excavator, which is slightly based on the 8419 (like the main boom mecanism) My first intention was to keep a bucket and to give it an use (not as decoration). An excavator looks me the most common application for a bucket. I used the small bucket because I think it has the right size. I used all gears -as gears -. The features: -Steering (HoG) -Main boom raising and lowering (Worm) -2nd and 3th section movement (Worm) -Extra movement of the bucket (Manual) -Turning (Turntable) The body is a bit unfinished, but with not any leftover beam, I couldn't get it looks better. For me, just as for many other Technic builders, functionality is more important than looks. For it size and the available parts, I think it's pretty good. I had only 10 unused parts, of which 8 pins. What do you think of it, and do you have any suggestions to improve it? Greets, Fresko
  22. This Posting is dedicated to - the TLG which offers this great set - Juergen who has build the ultimate 8043 and also has posted some small improvements to the original design - all of you who are somehow disappointed by the original design (out of sync LAs, hard moveable boom etc.) IMHO the original design is awesome and needs only very few (and cheap!) and punctal improvements to work like a charm. Remark: some of the mentioned improvements come from this vey helpful posting from Juergen (http://www.eurobrick...showtopic=45133), but i have not installed all of them. well, here is the list of improvements i have installed: 1. Switching driving-rings (from Juergens post, s.a.) Juergen: The first time I built the 8043, it had some trouble switching the driving rings. Most of the time, the motor had to run twice to completely flip the switch. So I geared down the motor by replacing the 2 16-tooth gears with a 12-20-bevel-gear setup. I also replaced the blue axle-pin with friction (step 35, book 1) with a tan axle-pin without friction. 2. Rubber belts to help the boom (from Juergens post too) Juergen: To get some weight from the boom, I added rubber-bands. They reduce the friction the LA's which is caused by the weight of the boom. I didn't think of this myself but read it in this eurobricks-thread. (I have choosen 6 black rubberbands ("Black Rubber Belt Medium (Round Cross Section)", part-no x37 at Bricklink), which work very well and look IMO better than the blue ones). But this doesn't destroy the very good aestetic of the model and make the operation of the main boom very good - also with the standard batteries! This MOD can be also applied very easy after finishing the build - so you can compare the effect. 3. Improving the rotation point ot the original bucket (Stolen from barman) (in both pictures: left the original, right the improved version of barman) It improves bucket operation a lot and is very cheap and simply to build from the pictures in its brickshelf folder: http://www.brickshel...ry.cgi?f=432777 - very recommended. 4. Making the left track running smoothly This is done by replacing the 4L with stop axle in step 36 (book 1) with an axle 6L - this prevents that driving axle from canting under load 5. That's it. With all this small and cheap improvements i must state: i overall prefer the "original" 8043 over the ultimate of Juergen, though the latter one is an outstanding mod and very well done - chapeau Juergen! But why i prefer the original: simply because of the cleverness of the mode-switching between arm-operations and propulsion/slewing - which allows 6 functions with just 4 motors. Well, of course the Ultimate of Juergen is a "cost no object" excavator and is a little bit more realistic to operate because all can be done simulaneously, BUT: this is not really necessary - the playability of the original design (with the improvements listed above) is also very high and has only very small restrictions - quite ignorable IMHO. But this mode-switching design is really clever and makes more fun to build and view and operate as the 6-motor-version - at least in my personal opinion ;-) Or let me cite Juergen: "One of the reasons for me to make this topic (Kumbbl: see link above) and video is to show that this model, when constructed correctly & precisely, operates quite well" SO: IMHO its is not really necessary to spend a lot of money for additional motors, receivers, controllers to make this model work well, some bucks for some cheap parts are sufficient. But of course there is one basic and important requirement: it is essential to build this model perfectly, means controlling after each step if all(!) gears and axles are running perfect and smooth - and "perfect" means perfect!! and the main boom LAs must be installed in perfect sync (but then IMHO it is not necessary to switch some gears or something else...just build as in the instructions) Finally: chapeau to the designer of this set - on of the best in the studdless aera! BTW: this praising is from a man who normally prefers pneumatic over LAs ;-) Just my 2 cts.
  23. Recently I had the idea that I can use the camera while building. I decided to make a video with pictures taken during the build. I used the Canon EOS 550D and EOS Utility. First I built 42011. I made about 450 photos. This is the result of this operation: Another set was 42006 Excavator. In this case, I made a 1450 photos. The mistake I made ​​was half the battery. In the film, if you can not see when I take out the battery and Stand the tripod. Photos were taken at night with a fluorescent lamp. A little strange being built with the knowledge that the picture is taken every 5 sec and you have to take your hands :). Significantly increases the time to build if you shoot images. Here is the result: I think to build all the sets in this way. For sure I have to build 42000 and 9396. Here a link to my YouTube channel: Sorry for spelling errors
  24. So, I decided I'd take the plunge and attempt the zorex-220 build from the uber designer that is Jurgen Of JTC... And so I bought his instructions and after spending almost 7 hours sorting out my spare parts and realising that I had to cannibalise my 42006 and my modified red excavator ( the one with the weird dipper set up from like 2009, I forget the set number) I discovered I had about 90% of the parts... A few stops to some parts sites and a stop by WASSERMANS shop as recommended on here for a 8878 rechargeable batt pack, once my orders arrive il be in a position to start building it.... Il upload some pictures as and when I'm building, but however, can someone help with picture sizing guidelines etc to keep me out of the Mods firing line please... Word of warning on the upcoming build...I'm not a stickler for sticking to certain colours, so I'm just prewarning you guys, I know some of you are purists and pick up on tiny details ;) so be warned! Take care guys :) Gareth
  25. Hello again! I made a small moc some time ago, but I didn't had time to publish it (due the buzy weeks at school). It's al little pneumatic creation (my first fully pneumatic), with 4 functions: A 3-section boom and a little backfill blade. Naturally it works with 4 valves. For the air pressure, I used 1 external big, manual pneumatic pump, because I didn't want that the model included batteries or other electric parts. Off course you can make an external electric pump. It was a challenge to hide all the tubes in a small space. And to end, a video: Please tell me what you think and how I can improve it! If there should be enough interest in instructions, I can make them. Greets, Fresko