nico71

Thanks for the picture 👍

Wise advice, are you sure it works with the 28t red gear of the differential ?

I do not see your point. This is not the same solution you shown on Pipasseyoyo's Truck. He uses classic portal hub, not geared one, so not very difficult to have double-tire at the rear in 19-stud wide with portal hub. Using geared hub requires to connect them with a CJ join which take place, and so keeping the width low which is the difficult trick (or you accept to be off scale with that tire or put bigger tire and use 21 studs wide). I have tried the same option with the 16t but it doens't work well. That is why I come up with my own solution on my Chevrolet Kodiak : The part : https://rebrickable.com/parts/57360/hinge-cylinder-1-x-2-locking-with-2-click-fingers-and-axle-hole-7-teeth/ The truck : https://rebrickable.com/mocs/MOC-155168/Nico71/chevrolet-kodiak-c70-control-version/#details Which work pretty good, not suitable for front steerable axle because this is not a CJ join, but it handle well the torque on the fixed axle, with keeping the width low (2l instead of 3l). I have not tested on heavy truck (I will) but I think there will not be problem. Nico

^^ It seems to handle quite well the torque on the video, surely the 8x8 transmission help to reduce the resistive torque on each axle, but maybe it worth to try on a 6x4 config for instance. Interesting use anyway !

Nobody mentioned the clever solution to keep small the width at the back with this scale and dual-wheel ? It uses the heavy CV joins connect to the diff, but without differential (so one stud save in width on each side, as on my Kodiak with 2L hinge cylinder instead of 3L join), but with a framing around the CV-joins to hold them, and leaded 12t gear on the crown of the diff to secure the position of the diff (because it is not maintain on its center). That is a pretty clever solution @P McCatty ! I did not see before in truck (see elsewhere but not for motorized drivetrain on big truck).

New instructions for an old creation (Free Instructions) : The model :A Great Contraption Module based on the Cardan Gear invented by Girolamo Cardano, from a simplified LEGO version of Torbjörn Söderstedt, build in 2015 for an exhibition. Here is a revised version with PDF instructions, with the helps of Daniel Garcia Argüelles (Daniel58).Quick Functions Showcase :How it works :A M motor operates two different mechanisms with crank / connector rod on sliding mechanisms : the Cardan Lift and the Input Tray. The Cardan Lift mechanism is composed of two arms, a first which is operated by the sliding mechanism, and a second which is attached to the chassis with a gear multiplication (40/20) using a differential to pass though the center. When the main arm rotates by 180°, the second arm makes 360° in the opposite direction. It enables the balls to be kept inside the fork and unload them in the output tray. A rubber band helps to prevent backlash in the functioning when the arm goes down.The second operated element is the Input Tray, which has an angled floor and a moving step at the end which can take only 6 balls. They are lifted when the Cardan Lift comes, and then, the step goes down and 6 other balls are loaded. 📕 Free instructions : https://www.nico71.fr/product/cardan-lift/ 🧩 Bill Of material : https://rebrickable.com/mocs/MOC-190380/Nico71/cardan-lift-great-ball-contraption/#parts 📐 Dimensions : 34cm (L) x 26cm (W) x 23cm (H), 1 M motor or crank operated Video : In action at Diemoz 2015 :

Thanks !

It fact the Tumbler tire is too small (81mm), which will be more suitable for my wheeled version of the 42100 model B - Vibroseis truck, which is about 1/18 scale (lenght of 56cm for original lenght of 140m on the Truck) Here is 1/16 scale, so the tire is 107mm in tractor style (lenght of 65cm for 10m truck in real). I could use the 94.3x38r tire but the pattern did not match quite well, more truck style than offroad vehicle. So the LEGO model was based on off-sand version, with muddy tires (tractor style, which is a bit too narrow as well) :

Thanks for your comment ! No problem at all that you can afford the model, posting here is already a great value for me :)

New creation !The Sercel Nomad 65, a vibroseis truck, recreated in LEGO Technic at 1/16 scale. Features 3290 parts, 68cm long, for 5 motorized functions : drive, steering, vibrator height, vibration module and winch, with working fake engine and openable elements.Demonstration Specs : Dimensions : L65 x W21 x H24 cm, Scale : 1/16, Wheels : Ø107mm, Weight : 3kg Drive : 2x XL motor with friction clutches and differentials Steering : 1L motor with two small linear actuators (internal clutches) Vibrator Height : 1L motor with two linear actuators (internal clutches) Vibration Module : 1L motor, geared up on eccentric mass Winch : 1L motor, worm screw on clutch gear (5mm/s) Fake Engine : CAT C13 working L6 Engine with details and fan Openable Elements : doors, front hub cover (rear accessible from underneath) Real pictures display the prototype model, where some color has been changed on the rendered version. The instructions and bill of material portrayed the rendered version (white cylinder in front of the vibrator module) Original Model :This vehicle is used in oil and gas exploration, by making the ground vibrated with a large vibrator. The vibrations propagated in the ground, bounce off the internal elements and are picked up in return by sensors on the ground in order to create a 3D map of the underground resource. These truck are often use in fleet with other oilfield support trucks.This project started as a commissioned project for Sercel in 2020, and was produced in 5 quantities for displaying in their showroom and being used in exhibition / training. In 2024, after some demands, I have created the PDF building instructions that I propose here which were one of the biggest ever done !Links :📲 More pictures, review, preview instructions [nico71.fr]🎥 Video presentation [youtube.com, 4min]🔰 If you want to add stickers on the model, you can download and print this file (A4, 100% zoom), or contact Forwart Sticker to buy the professional sheet.🧩 About 35% of the inventory is shared with the 42100 LEGO Technic set, which is a good donor set to build it (white parts, gear and grey connector, electronics), and explains why some pins are red (originally from in the 42100).📕 Bundle discount can be found on my website (-15% for 2 instructions, -20% for 3 on the whole cart).LEGO Technic Sercel Truck in the Sercel's Showroom at Carquefou (44), France

Thanks !

Thanks ! It remind me a lot of memory too, with also the Gran Turismo 3 with the Geneva Concept. So after digging, I have added a lot of cool concept car to my todolist (Peugeot 907, Peugeot Oxia).

Thanks for your comment , and your kindness about my Frenchy English :) The removable engine is something I do now since the Chevrolet Kodiak, because I like a lot the idea of building as a kit which can be swapped or fix / maintain etc as real.

Thanks ! Yes the video is quite long, I tried to shorten it but it is hard to explain all the tips and tricks, plus the functions and a bit of history. I think this is the sweet spot for the length but need to pay attention to my English pronunciation (some complained).

If you're not afraid of me speaking "approximate" English, you can see how I design the Nissan Skyline in this video: I explains how the functions works, the story of the original model, and some tips and trick I use for the design.

Thanks ! The design has been a huge part of the process, I have started by that over the chassis. The idea was to replicate the wide body look, without being too bulky because of the 80's style, so everything is in the nuance and the details. Of course the chassis has to follow that with many iterations, especially to place each elements at the correct place, which results in a lot of half stud everywhere (I usual). Thanks ! I wanted at the beginning that the motorization was not mandatory because honestly at this scale, I like both. So you can build the manual version and add motor then, of vice versa, they are not part of the chassis nor the design. The servo motor just blocking the HOG, but on the manual one you can choose if you want a HOG or not (which any was can be store in the trunk under the rear glass). That is why the bill of material for the motorized and manual are close.

After month of work, here my new creation ! The model :Gran Turismo’s Fans here ? This is a replica of the Nissan Skyline KDR30 Super Silhouette, buildable in two versions : motorized or manual. With rear wheel drive, steering with steering wheel, detailed working L4 engine, openable and removable elements. Packed in this widebody monster look with custom stickers and 3D printed wheel covers. Quick Functions Showcase :Specs : Nissan Skyline KDR30 RS Turbo Super Silhouette (1982 Version) Dimensions : 34.5 x 15.5 x 10cm, Scale : 1/13.5, Wheels : Ø43/49mm, Weight : 975gr (motorized version) Rear wheel drive with differential (gearing : 16/8/16, 20/12, 20/28 diff) Detailed and detachable LZ20B Turbo, working 4-piston engine Steering with rack and pinion with working steering wheel (both version) Detachable Hand of god on the roof for the manual version Removable hood in one piece Removable trunk, to access the Battery Box in place of the reservoir Openable doors With custom sticker and 3D printed wheel covers Available in two versions : Motorized (BuWizz/Cada) or Manual (both in one purchase) Both models are upgradable, you can build the manual, and add motor, or build the motorized one, remove the motor to add the Hand of God assembly Original Model History :The Nissan KDR30 Super Silhouette was based on the R30 Skyline with its particular black / red tone. Equipped with LZ20B Turbo charged with 570 hp, it complied with the Super Silhouette Group 5 Rules, which stated the racing car must not modify the bonnet, roof, rails panels and doors, to keep the “Silhouette” intact. Of course, Japan engineer modified the rest and gave its particular wide body monster look.The Japan silhouette Series started in 1979 till 1983 with this Skyline, but also the Silvia and Bluebird from Nissan, as well as car from other manufacturer like Toyota, Mazda, or BMW. Its race debut was in May 1982 and it did extremely well, chalking up 2 wins in 1982 and 5 wins in 1983 with the Hasemi team.Links : 📲 More pictures, review, preview instructions [nico71.fr]🎥 Video presentation [youtube.com, 1min34]🔰 Custom Sticker Sheet made by [ultimatecollectorstickers.co.uk]🧰 3D Printed Rim Covers made by [GtCreaCars.com]🛒Additional LEGO parts provided by Alpine Bricks Store : large stock, fair price, no handling fees, fast shipping [store.bricklink.com]🎁 Available at Buildamoc (Lego Parts + PDF Instructions, RC or Manual with sticker / Wheel covers) [Buidamoc.com] 🧩Rebrickable inventory (Motorized Version) [1270 parts, rebrickable.com]🧩 Rebrickable inventory (Manual Version) [1288 parts, rebrickable.com] Thanks to all who contributed to this project ! For sure, one of the biggest I have ever done ! Video : The instructions : Instructions are step by step high resolution computer generated instructions (300DPI, 2x166 pages) with partlists, flexible parts, highlighted parts for each step (preview on my website) The sticker sheet to print is not included in the instructions, and need to be acquired separately from UltimateCollectorStickers. A PDF guide for applying the sticker is included (visuals and numbers) The wheels covers are not included and they need to be acquired separately from GtCreaCars, then paint (pay attention, rear and front are different with corresponding offset-hole for the rims, fragile item, only push on the center, never on the side) The BuWizz Control Profile (zip file) is included, as well as PDF tutorial to install it (12 pages) Both instructions for the Manual and Motorized Version are included in one purchase, both are upgradable without dismantling al the model The main Rebrickable page presents the motorized version. If you want to build only the manual version, you can see the Rebrickable Inventory here, or remove the motor, and add only the parts in this list (for the Hand of God only, so you can skip it but you will only have steering controls on the steering wheel). This creation required months of work, with particular attention to detail, which included the development of two specific versions, compatible and upgradable, but also a custom designed sticker sheet as well as 3D printed rims. I think this is the pinnacle of what I can make, so I hope you enjoy it as much as I enjoyed designing it ! Let me know what do you think about it 👍

Very nice creation ! The level of detailed is very good at this scale. I though initially it was bigger indeed. Great use of the "new" small panel. LegendOfLeo actually built a bigger version of the articulated 6x6 :

Thanks ! It was more here a function created by opportunity rather than purpose. Thanks ! It was not very fast, I have worked on the set prior the official release with the picture from LEGO and then the partlist I have some day before the release, when I get the set, I finalize the model, but as always this is all the non-LEGO stuff which is longer, 3D model, instructions, pictures, video, editing, posting etc.

Thanks ! If people are interested into this B model, check this topic 👍

Thanks ! No this type of transversal displacement for the axle doesn't exist in the real world because of the needed ripping of the tire at zero speed. This is only use here to place the center wheel on the same curved path forms by the outer wheels to have equal radius to the center of rotation which limits the difference of ripping on each wheels during the corner. As you told, as soon as all axle share the same center of rotation, the ackermann gerometry is fine and the vehicle will rotate arround this point (more or less). The fact the wheels do not follow the same path can be a problem, on large vehicle or with heavy weight (to keep the wheels in the tracks form by the first wheels) but it was not the case here in LEGO, just a fun function, that's all.

Small update on the Warthog M12 : After many demands, I have released the specific instruction for the motorized turret. It is available for free on Rebrickable and Nico71. The guide for installing in the warthog is included in the instruction, basically removing some panel on the beds to attach the assembly which is compatible with the news positioning of the IR receiver but may require adaptation if you use third party electronics. ------------------------------------------ Then, here is my new creation ! An alternate model of the new released set 42180 Mars Crew Exploration, as a space garbage truck : The Creation : In the year 2180, we have now Mars Colonies, but we still have waste to collect to recycle. Here is the answer : the Space Garbage Truck, with its front loaded grabber, rear bin with tailgate and sliding blade, it is the perfect vehicle to collect the waste to to drop them off at the waste reprocessing plant. It is equipped with two steering axles plus a central sliding one to operate with a minimum turning radius, ensuring a quick and easy access in the polluted colonies.So, Space Trucker, take the lead and help the Mars Colony to handle the waste logistics ! Quick Functions Showcase : Specs : 🧩 1028 parts, 📐 Dimensions : 39cm (L) x 19cm (W) x 17cm (H) Only made with the parts of the LEGO Technic Set 42180 – Mars Crew Exploration Rover Front loaded grabber with one lever and adjustable claws Rear bin with manual tailgate and two-way winch operated sliding blade Two steering axles plus a central sliding one to operate with a minimum turning radius Packed with many details and accessories to play with No spare part used, no flexible parts cut, can be build with the sticker applied Links :📲 More pictures, review, preview instructions [nico71.fr] 🧩Online Bill of Material [rebrickable.com] (spoiler, if you own the 42180, you have everything you need) 🎥 Video presentation [youtube.com] 📕 Bundle discount can be found on my website (-15% for 2 instructions, -20% for 3 on the whole cart)The story behind this model :I am a space lover, so when I see the new Technic Space Lineup, I wanted to make something with it. I imagined a revival of the 8479 BarCode Truck with its particular decoupled claw / arm movement so I reproduce it using lever and connecting rods instead. I do not want to create an articulated dump at the rear so I fix the bin and create a sliding mechanism to push the waste, using the string to make a loop which is wound on a drum.The last function was about the steering. When designing the dual steering without gearing, I use a moving frame inside the chassis, and by connecting this element to the middle axle, it makes it slide to create the perfect Ackerman geometry avoiding the central tire ripping (despite it obviously rips when operated at stop). A pretty fun function, surely totally useless on low gravity planet !To finish, despite the quick release of this creation after the official release of the LEGO set, I have to mention that I had access to the inventory beforehand and started working on it before the official release, so this is not a rushed some-day works, but more some-weeks. Video [1min20] : Let me know what you think about it ! Nico

I did not post this but I have release the instructons for the Warthog (without the turret) : The Creation :In 2017, I create this LEGO Version of the legendary Warthog M12 LRV, being fan of the Halo franchise. But I did not made proper building instructions. Now it is done ! With the helps of a fan and ForelockMocs.It features all wheels drive, all wheel steered, double wishbone suspensions, lockable differential and opening element. Presented here in the Scout Version (M12B FAV Scout), without the motorized turret and with closed bed.Quick Functions Showcase : (LRV version with turret made in 2017)Original Model :The M12 Force Application Light Reconnaissance Vehicle, nicknamed Warthog, is a fictional armoured fighting vehicle that appears in the Halo video game franchise. An anti-infantry military light utility vehicle with a rear-mounted weapon turret, it appears in most major Halo titles as a drivable vehicle. [wikipedia](LRV config, image courtesy of FR Halo wiki)Specs (LEGO Version) : Halo 4 Warthog M12B Scout Replica (107mm wheel, 50x26x19cm) Powered by Power Functions System (2 IR Receiver, 1 emitter) 4x4 drive with differentials by 2x XL motors Locking differentials using a M motor and lever linkage mechanism Steering on both axles with a Servo Motor Double wishbone suspensions on each wheel Openable elements (engine cover, battery cover) Links : 📲 More pictures, review, preview instructions [nico71.fr] 🧩 Rebrickable inventory, 1607pcs [rebrickable.com] 🎥 2017 Video presentation [youtube.com] 🎬 2023 Design Secrets Video (English Spoken, 8min) [Youtube.com] 📕 Bundle discount can be found on my website (-15% for 2 instructions, -20% for 3 on the whole cart). Videos :(LRV version with turret made in 2017) 2023 Scout Version (M12B), design secrets video [English spoken 8min]

New (small) creation to celebrate the one year anniversary of my Switchless Machine, which gains 2.5 millions views on Youtube. So I wanted to propose a simpler version of this machine without set up. The model : A simple LEGO Technic Pneumatic Switchless Engine with one cylinder, custom valves, no set up and building instructions.How it works :This engine is built around a single double acting pneumatic cylinder, with air distribution using custom valves. These custom valves are composed of 2-hose loops by cylinder chambers (one for intake, one for exhaust), which are operated by pushers on sliding mechanism, connected to a rod mechanism, enabling to pinch the hose to restrict the air flow. It drives also a inertia wheel with a 5:1 gear ratio to provide momentum to the engine.It is based on a modified version of the one I did 3 year ago and extensively a simpler version of my Switchless Machine, with less parts, fixed ignition offset and modified actuation to use the widespread 11l / 88mm hose instead of rare 11.25l / 90mm that I used before. Links :📲 More pictures, review, preview instructions [nico71.fr]🎥 Video presentation [youtube.com]Please note that you need to have you own source or air (2 bar with constant flow). You can use : 4x pump LEGO like this one Use a LEGO compressor according to the specs Use a electrical compressor like automotive compressor, industrial or electrical pump, you will need to put the air in the LEGO hose with . You can use a ball needle. Use a hand pump with ball needle. The hose for the timing assembly have to be carefully chosen (4x 88-92mm lenght). They have to be soft enough to have an easy pinching and strong enough to handle the pressure. For instance, the last hoses in the 42100 are glossy and hard to pinch, the very old pneumatic hoses from 90's is too soft and do not handle well the pressure.The ideal hoses are those which come from the sets from some year like the 8436, or the 8455, you can use also the hose from the 8110, 42043 or 42157 if they are not the glossy version. The white hoses I use in the video are from Blokbricks which are very similar to the LEGO one and can be purchased at meter.You can use other hoses but you will need to increase the pressure if the hoses are too hard to pinch (like the glossy one) and reduce if it is too soft (like the very old hose). Regarding the dimensions, with the new design, I have tested 88mm, 90mm and 92mm successfully. I have not seen any wear on the hose, even if they tend to keep the shape of the loop some time after dismantling, they recover their original shape without any leak or damage after some time. But I think it can be damage if they rest for a long time on sun-display with no pressure. So if you display this creation, remove the two gray pegs, to remove the two yellow liftarm and so the grey fork assembly on the loop.

Thanks 🙏