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I converted the 42121 Heavy Duty Excavator to a RC version that can be driven and moved. * Instructions are being distributed by Recrickable. https://rebrickable.com/mocs/MOC-69683/Seo-onDaddy/42121-heavy-duty-excavator-full-rc-mod/#details * A 4-port receiver such as 'MOULDKING' receiver or, 'CaDA' receiver or 'Buwizz' is required, and case separation is required.'MOULDKING' receivers do not require any work other than case separation.The 'CaDA' receiver or 'Buwizz' must be removed from the case and the battery must be replaced in a small size.Battery size should be less than 14mm x 25mm x 50mm. * I modified some parts of the exterior because the space was cramped. * fixed the range of operation of the arm operation. -
[MOC][WIP] Excavator
gvo25 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello All, Recently I bought the lego 42114 volvo dumptruck and before I would build that I wanted to build an excavator to go with it. While Flybums excavator is a very good one I wanted to try myself to build an excavator. Here are some WIP pictures. As you can see the top part of the excavator uses the normal power function motors. 1 x L-motor for swinging, 2 x L-motors for the main boom, 1 x L-motor for the stick and one m - motor for the bucket. The main boom houses two motors and is my own design, the stick is an exact copy of flybum's excavator. The motors use use two AA-battery boxes and the AAA battery box is used for ballast, and will later power the lights. The crane uses a normal turntable, as i find the big ring gears too big for this scale of excavator. The top part wobbles a bit while turning but it's definitely within limits. The trackbase uses 2 control+ XL-motors integrated into the tracks with a worm gear and normal gearing. The battery box is situated just below the turntable. -
This is something I came up with after starting a build of wheeled excavator from scratch. My previous model had overcomplicated design of the chassis and used small linear actuators for arm movement which was pretty bad for a manual model due to the amount of cranking required. I also got rid of steering elements I often used in my previous builds as they are not that common anymore. The one of the arm controls use single lever for two arm movements - bucket movement and arm movement - this is made possible by differentiating the torque required for string pull with a wheel. The video shows building of the chassis and operation of this excavator arm prototype I'm planning to build a full excavator model on this, hopefully with full fledged instructions, but it'll take some time, so stay tuned if you like it.
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Building B-models between major projects has become quite normal for me. Such a break and playing only with Technic bricks is a very good way to reset my mind 😊 This time it was the 42114 set and the Mining Dump Truck was created as an alternative model, for the excavator from the 42100 set. The plan to build this vehicle from the 42114 set appeared a few months ago. I put it off for later, because I thought I wouldn't have enough panels to build a nice dump box. Over the weekend, I sat down with bricks and in a few hours the first version of the tipper was created. I liked it so much that the final version differs from the prototype only with minor changes. The biggest difficulty in building this model was its size of frame. When planning, I insisted that the model must use the original app, because that could be easily configured and played with it immediately. The machine has double wheels on the rear axle, so the frame basically contains the engines, gearbox, and a rear axle. In addition, the set has only long actuators so placing them in the dumper was also not easy. At the end, everything was packed into a pretty nice model, which uses over 78% of the set elements. The tipper was supposed to look good with the R9800 excavator from the 42100 set. So I scaled the Liebherr T282 to 1:42 scale and built the model on it. The appearance of the dump truck is a combination of the previously mentioned Liebherr and CAT 793F. It is not an exact copy, but there are similarities. Building instructions: https://rebrickable.com/mocs/MOC-76959/M_longer/42114-mining-dump-truck/ Check out photos and a short video presenting the model's functions: Video: -
Hi everyone, Today I want to introduce to you my latest MOC : a Poclain excavator, the HC 300. Poclain is a French company (bought in 2000s by CASE) leader in 60-70s in hydraulics excavators and engines. The HC 300 was the bigger excavator in the world in 1968 ! Specifications : I wanted to control the model with a smartphone so I used Control+/Power up applications. The excavator has also manual features. I used electrical linear actuators instead of pneumatics to enhance playability. The excavator must be able to rise one track from the ground by using the bucket and his motorized arm. Inventory is mainly based on #42082. The main design is based on 8043 set. The drive train is powered by 2 L motors and a dual differential drive : more informations on @Sariel video : https://www.youtube.com/watch?v=f5_OQooBxdY. This kind of transmission allows control by only one joystick one smartphone screen instead of two sliders. Configuration : 6 motors : 5 L motors (https://www.bricklink.com/v2/catalog/catalogitem.page?P=bb0959c01#T=C) and 1 XL motor (https://www.bricklink.com/v2/catalog/catalogitem.page?P=bb0960c01#T=C&C=85) 2 electrical hubs 2 000 parts Features : - Toggling cabin with mechanical locking system - 360° turret rotation : One battery box is placed in drive train and the other one is placed on turret. No cables through the turntable, only a shaft to transmits rotation from drive train to the V12. - Technical compartments : a lot of openable elements very useful to store tools and tracks components. The grid at the back can be opened to reveal V12 engine. - The entire bodywork is removable. It is only set on the turret by gravity. The entire of the excavator is modular in order to make disassembly easier. - V12 engine works when the excavator move. I add a maximum of details to make it more realistic. - The dual differential drive : Each motor drives one kind of motion, straight-line motion or rotation. Get more information here : http://groups.csail.mit.edu/drl/courses ... ldiff.html. You can also combine motions to get curved directions. Tension on tracks is maintained by springs. Originally made by @Anto : https://www.techlug.fr/Forum/viewtopic.php?f=5&t=11548 Inspirations : https://rebrickable.com/mocs/MOC-1312/yannmar/motorized-hydraulic-excavator/#detailshttp://www.techlug.fr/Forum/viewtopic.php?f=5&t=11548http://www.techlug.fr/Forum/viewtopic.php?f=5&t=11878&p=192932&hilit=excavatrice#p192932https://www.techlug.fr/Forum/viewtopic.php?f=5&t=11343&p=185867&hilit=excavatrice#p185867https://rebrickable.com/mocs/MOC-19850/Mowlwurf/42006-full-rc-mod-undercarriage-with-transverse-subtractor/#comments Conclusion : The video will come soon ! Building instructions too ! I hope you liked this creation, I tried to mix up realistic details and common excavator's features. Only displacement is slow because of a total weight of 2kg. HD pictures here : https://flic.kr/s/aHsmVM6rX2 -
I present to your attention the Liebherr 984 excavator. Liebherr 984 Model weight 6.5 kilograms Model width 30 stud Chassis control two M motors with separate BB Pneumatics control three M motors and an XL motor for turning the tower as well as with B For pneumatic pumps a separate L motor with BB -
Hello everyone: I am glad to share this project, the mining excavator, based on Cat 6090. Phisycal Configuration: The Lego Cat6090 is a motorized digger on tracked wheels, 2 XL motors provided enough torque. On the track frame is placed the main structure, and a heavy duty turntable allows good rotations, without fricctions. The turntable is rotated by means of 1 XL motor. The main structure contains: the XL motor for turntable, the air compressor, 4 servos for pneumatic valves and the controller. The design is ultra compact in order to meet the requierement of size/scale. The tracked whell is ultra rigid structure, designed to resist extreme load. The air compressor has 4 XL motor and 2 pneumatic pumps, in order to provide a constant air flow and high pressure, both pumps are de-phased 180° in order to reduce vibrations. 4 PF-servos open/close 2 way air valves, to command all pneumatic actuators. The boom has 2 large pneumatic actuator. Due to heavy height of the boom, 4 spring supply extra force during the elevation. 2 large pneumatics actuators push/pull the arm, those actuators are placed below the arm. 2 large penumatics actuators dedicate to rotate the bucket. 1 medium pneumatic actuator, open/close the bucket. Electrical configuration: Three 18650 batteries provide an average of 11.1 V, the compressor are suplied with 11.1 V, and the servos, lights and turntable motor are suplied with 9V. A BMS (Battery Managment System) manages the charge and the discharge durgin the operation. The tracked frame is steering by the use of 11.1 V, and as well is manage by the use of a BMS. On Board System (OBS): The name given to the controller. There are two systems, one for the main structure, and the secund is used to move the tracked well. The main controller, is a server TCP/IP protocol. The controller has a ESP8266 microcontroller with a TCP/IP stack, this controller is able to be programmed in arduino languaje (also micropython) - Teh ESP8266 is used as a sever, Motor driver: used to control the compressor The 4 PF servos are controlled by means of digital outputs, and the lights. ld293d, this is a H-bridge used to control the turntable motor. The second controller, is a ESP8266 as a client, and controls the speed of the tracks. Also, it has a BMS in order to regulates the charges/discharge of the batteries Accessories: 1) Josyticks: Two joysticks, with 4 dof (degrees of freedom) each of one plus a on/off button, are connected to the server module. 2) App: An application developmented under Android studio is used to visualizate the air pressure and electrical current, this app is WIP (work in progress). Conectivity: The comunication used is socket TCP/IP- Main features: maximun pressure reached: 52 psi (358 Kpa) Voltage bus: 11.1 V Compressor electrical consuption: 23 W Weight: 6 kg Length: 30 cm width: 20 cm height: 30 cm Here some pictures, during the construction and commissioning Note: my apologies for my primitive english
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I was always inspired by the multi-functionality of backhoe's, and I always imagined ways to improve upon it and now I finally did. In this MOC I challenged myself to make the most multi-functional vehicle I could, using all the motors and sbricks I had, naturally I ended up buying more motors XD The final build includes 17 LEGO power functions motors (5XL motors, 6L motors and 6M motors), 4 LEGO power functions lights and 1 DIY LEGO laser! It's powered by 4 LEGO PF battery boxes, controlled by 5 SBricks and operated by a 20 channel SBrick profile. The drill/laser arm is operated by 5 channels 1 channel for rotating the arm (PF XL motor) 1 channel for tilting the arm out (PF L motor) 1 channel for extending the forearm (PF M motor) 1 channel for spinning the drill head (PF M motor) 1 channel for activating the DIY LEGO laser (TOPIC HERE) The excavator arm is operated by 4 channels 1 channel for rotating the arm (PF XL motor) 1 channel for tilting the arm out (PF L motor) 1 channel for extending the forearm (PF M motor) 1 channel for moving the bucket (PF M motor) the bulldozer scoop is operated by 2 chanels 1 channel for raising and lowering the scoop (PF M motor) 1 channel for tilting the scoop (PF M motor) The crane is operated by 3 channels 1 channel for rotating (PF M motor) 1 channel for extending the crane (PF L motor) 1 channel for operating the winch (PF L motor) The plow/ trailer hook is operated by 1 channel 1 channel for lowering and raising the plow (PF M motor) The drivetrain is operated by 3 channels 2 channel for driving forwards and backwards (2x PF XL motor) 1 channel for steering (PF XL motor) The lighting is operated by 2 channels 1 channel for headlights 1 channel for rearlights Weight: 4.6KG Length: 62cm With: 32cm Height: 31cm building time: 4 weeks A special thanks goes out to my friend Bas for helping me edit and my amazing girlfriend for her everlasting support. -
Hi Eurobricks ! Building instructions of my pneumatic quick coupler (See on my Volvo excavator) are available on Rebrickable. https://rebrickable.com/mocs/MOC-20641/TeClem8/pneumatic-quick-coupler/#comments Hope you like my design :) -
Now 99% happy with this, my interpretation of a backhoe excavator, based originally on the red farm tractor by TLG and evolved from there, enjoy, hope you like it like me, comments feedback welcome.
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LEGO Technic 42100 “Liebherr R9800 Excavator” Price 449,99€ 4108 parts new control system CONTROL+ 7 motors (CONTROL+) 2 CONTROL+ hubs new parts: Linear Actuator long (12 studs?) big gear wheels dbg (grey) (like in 42095) new liftarm frame 11x7x1 no B-model at the moment Go nuts -
Hello! I show here my entry to the latest Lego Ideas contest: the Volvo Excavadrone. This project born in my mind in the middle of the contest: at the beginning I was thinking about a modular construction machine, but it was not something “special”. Then I started thinking out of the box, and a flying machine was born! All functions are manual: Arm and bucket movement, with 3 Las Turret rotation Solar panel movement Flipping wheels/propellers Detachable operator cab Independent suspensions The model was a runner up winner of the contest, so I’m really proud of it. I hope you like it too. -
Anybody have a build to share that has quick latching on the bucket or accessories? At work, our catepillar excavators have quick latches on the arm so they can attach small or big buckets. Some times even hydraulic rammers. Has anybody cracked at this quick latch system so they can switch buckets? I'm currently stuck trying to figure out how to have the front tilt + side tilt + spin + quick latch mechanism all built in one. -
Hi everyone, I would like to present my latest excavator (I guess I'm obssed with them). This time it is rope shovel excavator loosely based on Menck type Mc (1,6m3 volume of bucket). Such excavators were common till the hydraulic excavators started to rule in 60-70'. The larger types were mostly used in mines (and they are today used as well), but smaller types were used in all sort of works in constructions. My model is equipped with one L motor and gearbox with 6 motorized functions: 1 - boon elevation with rope 2 - arm elevation with rope 3 - arm extension with shaft drive 4 - rotation 5 - left tracks 6 - right tracks Emptying the shovel is done manually. I wanted to build the machanical aspect of the machine as closely to real machine as possible, however the arm extension was not possible to recreate. On most excavators the extension worked with third rope drum and the rope for extension and elevation was shared. This system worked in lego only for substraction and not extension as this was usually done by the weight of the shovel. Some excavators (mainly steam and electric) used another motor directly on arm for forced extension/substraction. However I wanted to stick with one motor only as it was my intention to see how complex gearbox is possible to make. As you can see from the video the L motor has no problem to drive 2-3 functions at once. The movement of tracks is very poor, but that is given by usage of small wheels that are not really suitable to serve as the only wheels driving the tracks. The smaller tracks would be better, but I don't have them. This time I really didn't bother much with aestethics so it is just bunch of panells, my main focus was on function. IMGP4995 by Ivan Moc, on Flickr IMGP4993 by Ivan Moc, on Flickr IMGP4992 by Ivan Moc, on Flickr IMGP4991 by Ivan Moc, on Flickr -
Yet another little excavator. Jono Rocky's model was great, but one main thing I wanted to add to that model was some functions to the undercarriage. Then Efferman started his Liebherr Compact 926 project and figured I could add another cylinder to Jono Rocky's arm. This is the result: As you can seen, also used the standard Liebherr colours. Yellow and DBG just happened due to the panels at the rear and the colour of pneumatic switches and I figured I'd use white for the cab instead of "yet another black cab". It isn't scaled to existing Liebherr though. Functions: - Full functional pneumatic arm - Pneumatic dozer blade on the undercarriage - "L2" engine (let's say it's a little "out of sync" though more on that later) - Full 360 degree turn with controls at the rear I was pretty surprised the blade holds the entire model up, especially after every single cylinder on the arm nagged about hoses not being the right length or in exactly the right position. If anybody has any suggestions to make the hoses less stiff (some kind of oil?), I'd love to hear it, because this was just stupid. These panels just screamed: use me here and never ever remove me from this place I added a second pump to the undercarriage so the superstructure could turn 360 degrees 1millmeter of play between the gears+axle and hoses I actually wanted to add another function: cabin lift, but besides having a lack of space behind the cab for this (hoses) it would have a serious negative effect on the support of the arm. So I dropped this idea. I didn't really like having the controls for the turntable stick out at the rear so much as this, but I had no room for other solutions. I tried lowering the "knob" one stud so it wouldn't have to be that long (it's this long so it doesn't collide with the superstructure while actually turning). I tried looking for a way to make a sliding mechanism, but there was simply no room. So I settled for this third option: removable and click it elsewhere on the body. I didn't try to close up the whole rear with tiles, mainly because the hoses ruin any type of mounting points available. On the other hand I like seeing a bit of "the guts". Especially when I spend quite a few evenings on these "guts" (hoses) to get it to work properly The L2 is poorly tuned In the space available my options were limited. I used @Attika's half pin solution for the fake engine, but these pins won't work with plates with a clip on top, because they can lock up on these pins. So I needed parts that were round on top. I could only think of this crankshaft part in the 2x2x2 studs space available. In this WIP you can clearly see the current situation: I added the 2L thin liftarm for the simple reason that I like the engine more going 2 up> 1 up> 2 up etc. than 2 up > nothing > 2 up. Neither option is realistic, so I chose what was most fun for me With his other pneumatic buddies: Some WIP pics That moment when you realise that your superstructure is 1 stud too long or your undercarriage 1 stud too short... I tried making the superstructure 1 stud shorter, but that would really hurt the rigidity of the arm. So I made the undercarriage one stud longer, which funny enough was a bit of a puzzle to make it bigger, but in the end it turned out better (mounting of the blade didn't stick out on top anymore for example) and the whole undercarriage is stronger than it was. No idea how much hose I used. Jono Rocky was at 1.3m of hose iirc, with 2 more pneumatic functions I am probably closer to 2 meters. There was an attempt to add a diff to this model, like the previous models I made. However due to the size of the diff and the ground clearance it would turn out something like this: As we all know from Sariel's gear calculator, there isn't a combo of gears for 1 stud down+1 stud right, but these bevel gears with half a studd offset, work pretty well for this purpose (though I doubt it would play nice with torque from a motor). It even has that, as @Didumos69 would say, "sweet Lego gear rattle". It's probably common knowledge, but it was funny to stumble upon this during the build and something I might find another purpose for in the future. I decided to drop the diff from the model in favor of the dozer blade function. I also dropped the scale of this diff concept, because the bucket would be too big. I didn't want to build a smaller bucket or use one from normal Lego, so I decided to scale up to the normal Technic bucket. In case you wonder why there isn't a video of the pneumatic functions. I tried, but my big paws block alot of the model when operating the functions And here's a video of the pneumatic functions, don't ask me why I didn't think of holding it this way yesterday... Thanks for reading yet another too long post from me
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I created this modified Bucket Wheel Excavator some time ago, and I thought I would like to share it on this forum. After building the original BWE, I wanted to try to incorporate some Mindstorms functions into it. I managed to motorise all the active functions, using both an EV3 brick and motors, as well as some PF motors. Functions can be preprogrammed, or can be remotely controlled using an EV3 IR remote. Here is a list of the functions: Bucket wheel rotation and main conveyor belt - PF XL motor Lower conveyor belt - PF medium motor Boom arm elevation - EV3 large motor Lower conveyor swivel - EV3 large motor Superstructure rotation - EV3 medium motor Driving - EV3 medium motor Since I owned an NXT as well, I used it to motorise the small mining truck that was included in the set. There are also some LEDs that illuminate the 'work area', but they don't really do a good job, its just a nice thing to include. Here is a video of the excavator in action, as well as the mining truck (sorry about the poor resolution and bit rate): More info about the machine can be found here: https://www.us.lego.com/en-us/mindstorms/community/robot?projectid=3e125a5b-475c-4a4c-b3ed-e4b4f2192907 Let me know what you think of it in the comments! -
This is one of my old MOC(least 1 year ago). A 2 motor wheel excavator. All 6 funation is work by ONLY 2 M MOTOR. 1. Drive forward/backward when arm point forward, drive forward, point back, drive backward. 2. Steering when arm point left, steering working. Moving by crank mechanisem so steering is repeating left->right->left.... 3. Dozer blade up/down when arm point right, dozer blade start working. This is also moveing by crank like steering so repeating up->down->up... 4. Upper structure rotation this function is linked with main boom up/down. 5. Main boom up/down crank(skip) 6. Second boom/bucket this function is linked with down structure working function. crank(skip also) No photo because that is so old moc. And I will make v2 of that. -
Hello All, As I love excavators, I couldn't resist to post these photos of my 4 excavators together, just for the fun of it. It's the 8294, 42006, 42053 and the 8043 with modified stick and efferman bucket. Hope you enjoy the photos And a last photo of the modified stick (sorry for the color vomit, I don't have those yellow panels) Feel free to comment Greetings
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The Lego set 42030 Volvo L350F is one of my favorite sets. I love the playability, but I wish there were more Volvo vehicles from the same series of earth moving vehicles that were equally playable. I happen to have a second L350F bucket kicking around from a second set purchase to make a A40 dump truck. I wish I had the Lego motorized excavator, but I have parts and this is Lego after all, I'll just make one. The first check in my mind is the bucket size. The L350F bucket is a spade nose rock bucket with teeth and segments. In real life this bucket is 13 feet wide and holds about 9 to 10 cubic yards. The EC750E's largest bucket is a general purpose earth moving bucket with a capacity of 9.34 cubic yards. It's width is unspecified(in the EC750E brochure), and while it will not be a spade nose bucket, the volume is close enough that maybe this could work. The first thing I've done is to figure out if/how the loader bucket could be used as a digger bucket. My initial scale is 1 stud width = 6 inches based on the 750mm grouser being 30" (2.5') or 6" x 5 being a good match for the Lego track being 5 studs wide. We'll see if I stick to this roughly 1:30 scale in the end. I'm going to document the build here: http://cloudslego.blogspot.ca/2017/ and discuss the problems that come up in this forum. Here is the first proof of concept on the bucket/arm/boom.
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Hello guys, Do you like oldschool Lego Technic with a single motor and many functions? I hope you would like my excavator. It has only a single PF L motor and is fully functional. It can drive and dig. Enjoy the show 😀 -
Inspired by the Volvo EC750 Excavator with the new Powered Up motors All motors in the rotating platform Tracks with subtractor mechanism and two differentials Tensioner regulated tracks -
Hi. Guys! :) The high pace in building agricultural models I imposed myself last year meant that I had to take a break. I need something completely different and new challenges. Then I decided that it would be interesting to build an alternative model for the official set. The limited amount of bricks always boosts creativity. The 42100 set doesn't have a B model at the moment. When I saw model of Bobcat loader build by my friend Makkes', I thought it might be a pretty interesting idea for an alternative model. However, I didn't want to build a typical skid steer loader. Looking through this type of machine, I found the Bobcat T870. It is interesting because it has additional links and support arms. For what? Well, to get the vertical lift path. The whole system eliminates the bucket moving back effect and this makes loading onto trucks much easier. I built a loader in just over two weeks. Scaled to the wheels gave a 1:9 result. From the first pin, I planned that the model would be built modularly. It caused me a bit of problems but I learned a lot and the whole construction contains 14 modules. I started by building caterpillars and I am very proud of them. Technic links are very well stretched much better than in model A. The model is not complicated but its construction gives a lot of fun for example connecting the caterpillars with the frame and then the drive. When I ran out of one cardan, I decided to assemble it from the available elements. I wouldn't be myself if I didn't take care of visual issues. I knew at the planning stage that I wanted to finish the cabin with pneumatic hoses as a cage. I added many details such as oil tank, distributor, radiator, muffler. When we talk about visual details, operator's seat is my favorite part. I am aware that the model does not use the full potential of the set. Only a Control HUB and three engines and some parts are left for use. I treat this model as a warm-up before the next one Marek, as usual, create building instructions for the model and of course he did a perfect job. The original application is not suitable for control this model, so I decided I would create another instruction for the BuWizz application so that everyone could easily configure it. Model dimensions: Length 42cm, Width 23cm, Height 26cm, Weight 2480 gram Drive 2x XL, arms lifting XL, tilting bucket L motor. The building instructions are available at: https://sellfy.com/p/dwatsg/ https://rebrickable.com/mocs/MOC-37222/M_longer/42100-skid-steer-loader/ Photos and video below. This is my first alternative model so I am interested in your opinions.
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It will be a front shovel or a excavator or both. My challenge is not to have reference, I want to do it strong and playable with the less pieces I can. I started with the tracks and it was not easy at all... all the weight rest over the six small wheels to have less friction on the track gears and you can take off easy the turntable, each undercarriage and the center part. I would like to know if the small tracks will be a good idea to move the machine, I think I will have to do a test with a lot of weight to test it. I did not like at all the 42100 tracks because they are too big I wanted mine just 9 studs high. I still have a lot of work to do so I am quite happy. -
Hello everyone! I posted a new video to explain how I built the tracks and the tensioner for my cutom Volvo excavator.
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Hi there! At the start of January picked up the 42108 set (Actually wasn't planning on spending money on more Lego at the start of the year but saw a surprisingly cheap deal for a new set and just couldn't resist it). Naturally, opened the box, went through the instructions and applied all the stickers to their belonging parts and started to work on new alternates without assembling the original set (Yes, I'm a mad lad :D ) And who would have guessed.. my first alternate was another excavator.. I hope that people don't get exausted of seeing another one but this set turned out to be a great part pack for creating a sleek and fully functional wheeled excavator! Functions: Working steering - blue gear on the back Adjustable front shovel - manually, can be locked in place Adjustable rear outriggers - mannualy, can be locked in place Rotating upperstructure - Black knob at the rear of the chassis Fully functional arm - controlled by 2 seperate knobs on the top of the upperstructure Chasis storn enough and with the outriggers and shovel extended it can support the whole weight of the excavator and lift it from the ground. At this moment this is the second set that uses the new Large linear actuator, and it just makes reach on this medium sized excavator crazy good If You want to build it Yourself - Instructions available here: https://rebrickable.com/mocs/MOC-38023/tgbdz/42108-alternate-wheeled-excavator/?inventory=1#bi (Or simply look for TGBDZ on rebrickable) For the next build I wanted to make something different that I haven't tried before.. After Some tinkering with the parts a bit I started to build a rather large structure using the larg 3x11 curved panel pieces and after creating a large bathub like structure I decided to make an articulated hauler. I had atleast 6 wheels, for the center joint I could use the turntable, large actuator should cover the lifting of the cargo bed - all the major issues were solved quickly and here is the result. Functions: Working steering - no HOG - the center of the cab is so close to the swiveling point that it's easy to steer by pushing on the cab sides Fully adjustable chasis/suspension - front axle is solid and together with cabin is rotating on the turntable located in the center of the chasis - rear axles use double wheel boogies that easily gets over small obstacles Functional and tipping cargo bed - uses large actuator and is operated by knobs on either side Cargo bed can be locked at the back to prevent unecessary spillage of goods And just like for the excavator - I think the original 42108 stickers add a lot of nice touches to the design. Instructions for the Hauler will be available soon. What should I build next? At the moment I'm thinking of making two models at the same time - 42108 has 8 aviable wheels.. Will see :) Cheers!
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