HorcikDesigns

Thank you very much! There is link to IG reel with quick preview of the RC version, somewhere in spoilers it this thread, full video of RC version is being prepared and will be uploaded in a week or so. I am wondering if I can fit diflock to the rear axle like on your Hilux, but with planetary gears. Width is very limiting me here, but I like this type of challenges.

Well, things wen wild when I finished this model two weeks before, and model that was planned to be left as surprise on planned AFOL event this year, is online now, even with instructions. So, what do we have here? INSTRUCTIONS! https://rebrickable.com/mocs/MOC-138418/Horcikdesigns/suv-offroader-hd-kumaq-sport/#comments (soon enough to catch readers attention, sorry for advertising, but take it as a FAQ answer) ... And then it finally came. I uploaded the first photos of the first car. Some people said it was too dark, so I had to turn on "atelier" lights on. Watch the next photo in private and after 22:00 only, it is literarly "under the skirt" type of photo. You can see that the rear diff is locked, and some very wierd part in the front of the car. Then I took this car out, and found out that 2 speed gearbox might come in handy, it is brutally fast. One buggymotor and 3S LiPo might be enough... I will consider changing the gear ratio. Quick video footage as an teaser: https://www.instagram.com/p/Cn9RnIKsh-5/ Video from that trip will be shared in next few weeks. I am still thinking about modifying the door section (or sidewalls) - I used some knock off panels in LBG (original are nonsense for me to be used in offroad car), but I start to think that there should be cleaner solution... ____________________________________________________________________________________ ___________________________________________________________________________________ For the light "sport" version I was considering two colours - sexy red (I almost finished the model in that colour, but decided to change it f)-or poisonous and bright lime. Well, with the releas of Sian and Pullback Mustang, it was after a week of tinkering on BL, clear, that I have to make small investment in new parts. And the result? And, for this car have I prepared INSTRUCTIONS for all who would like to build it for themselves! https://rebrickable.com/mocs/MOC-138418/Horcikdesigns/suv-offroader-hd-kumaq-sport/#comments Building guide for Control+ version will mosst probably be added as a bonus to the original guide, and instructions for the "beast" will be finished and released later this year. And why KUMAQ? Well, it is inspired by Japanese (or generally asian) cars, and Skoda Kodiaq. Hope this word does not mean anything else. :D

@Zerobricks official rues of the championship are proclaimed to be as close to the rules of the "big" trial as tehy could be, while as the refference is taken Czech Truck Trial events. That means, that the rules of the LTTT (Lego Technic truck trial) are quite complex, but basically - you can not touch the car while in section, you can not leave the section other way than exit gate, and all gates are directional - it is defined the way the truck moves (going up or down the gate), does not matter wheter steered axles go first or last. There are then some rules about size and weight of the vehicle in each category (class), the bumper is mandatory (expect Prototype class), and driveline scheme, etc. Full length rules are on link below (only in czech, auto-translation needed) . http://www.artpeter.net/trucktrial/Pravidla.php Link to photos from older seasons: https://brickshelf.com/cgi-bin/gallery.cgi?m=KTT Regarding the exposed gears, yes, it is issue while going through high grass or fallen wood sticks, but this way it could be much easily cleaned, and the ground clearance is usually in this scale one of the most important feature of the car. Well, here are the promised detailed chassis photos - enjoy! - I know, there is enough space in the chassis for RC battery/control system, but remember - the batteries should last through the entire race day. ;)

@Jundis thanks! Well, we like Tatras. But it eas not only about them, and the most successful cars were not inspired by tatra suspension.

@keymaker Thank you. If you would like more info about the red truck, check the videos from LTTT 2020 and 2018 seasons, this car was just growing from 4 and 6 wheeler. :D Here is video of some cars drying their belly after river crossing. https://www.instagram.com/tv/CgXBQDHI5S9/?igshid=YmMyMTA2M2Y=

@Zerobricks Thank you! More pictures will come in near future, I have to find time to make them. I also consider showing details on 3D renders, so it might cause a little delay. @Daniel-99 It uses 2 buggymotors (mentioned in text above) and one L motor for steering. More technical details are going to be submitted with additional photos of the chassis. Total dry weight of the vehicle is something about 2.4 kg In the meantime you can check more action of the truck on videos from the championship, which I joined with this truck.

Hi, I would like to show you my new MOC (technically almost one year old today, but officially unreleased yet) I have built for Truck Trial Championship (LTTT) in 2022. Maybe you sy to yourself now - wait - I have seen this MOC before. And youre halfway right. I re-used the "body" (cab and bed cover) from my older MOC ... ... but built completly new chassis. It turns out that the steering mechanism is indirectly inspired by @Zerobricks concept. (https://www.eurobricks.com/forum/index.php?/forums/topic/187725-wip-realistic-tatra-8x8/&tab=comments#comment-3456145) (one of the trucks on the championship used very similar steering system without the big turntable, it worked like a charm, so I applied basic engineering workflow principle - madr dome photos, and tried to improve the solution with turntable. Well, great minds probably really think alike) So, finally to the MOC itself. Mechanically, it is as simple as it could be (chasing the reliability) - no diffs, no difflocks, no switches, just 2 buggy motors, one for front, one for rear axles, mounted in the middle, geared down, connected to two drive axles like in Madoca1977's Tatra MOC. I routed the driveshafts in a way, where, in theory, the torsion in axles is partially used, together with backlash in gears, as locked differential substitute - again: in theory. Then the steering mechanism (more photos soon), suspension - halfaxles do not turn around axis coincident with the driveshafts, light frame, detachable cab, and wire remote control to save weight. Works good enough, the gears do not skip, but it is really a Tatra - due to ground clearance issues with low driveshaft and spine-tube placement. Hope you like it. More photos: https://bricksafe.com/pages/horcikdesigns/tatra-t813-8x8-lttt-v2 More photos of the chassis will be released in near future. I also consider making instructions guide.

Wow, nice Mtron vibes, and some very nice NPUs! Good job!

Thanks. Well, it was not intended to look like Mando's ship, but placing the engines this way will most probably always be more or less resembling it.

Light ship for exploring planets the mothership approached. Features small tracked rover for terrestial exploration. Full album: https://bricksafe.com/pages/horcikdesigns/system/cse---shrimp-class-shuttle

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I have not seen so cute and well-built MOC for a while. Good job! Makes me want to build one similalar too. :D

Wow, good job!

Afterlife update - I tried to make new swingarm, but the original brickbuilt was still better. Maybe next time. I added brakehandles (not documented yet on real thing), designed custom honeycomb-pattern rims, custom fuel tank panels that enable lower fuel tank with custom button batterybox for front and rear lights. https://www.instagram.com/p/CdrBEjCso-t/?utm_source=ig_web_copy_link https://www.instagram.com/p/CdrBEjCso-t/?utm_source=ig_web_button_share_sheet http://www.instagram.com/p/CdrBEjCso-t/ Purist update - I have finished the instructions for this MOC, you can find it on Rebrickable.com. It features full PDF guide for the main model, PDF guide for the rear sporty swingarm that enables to use wide Ducati rear tire, and PDF guide for the electric power-module that could be easily swapped with the internal combustion module used in main MOC. I also added there some STL files for custom modifications like legrest-operated shifter link, top panels assembly enabling light module below it, front custom brakediscs, and custom brake handles. There are many colour schemes possible! https://rebrickable.com/mocs/MOC-114955/Horcikdesigns/hdone-custom-modular-drivetrain-motorbike/#parts Enjoy! More photos: https://bricksafe.com/pages/horcikdesigns/tc19-hd-one/-moc-114955-bi-preview

Many great entries, this was tough to choose just six. 24: 10 7: 6 28: 4 19: 3 18: 2 10: 1

@gyenesvi Yes, but then it would be different car without easily swappable body. Most probably also heavier. My intent for this MOC was foolproof chassis without the need of specialized elements. 😉 These tires need custom rims, because it has two different inner diameters for connecting to the rim.

@gyenesvi Thanks! In thos size there definitely could have been squeezed some basic suspension, but then the drivetrain would be much more complicated and less effective (or with slower output). The flex in the chassis provides enough axle articulalation. The custom tires were originally meant for some WPL standard RC car, tgeir outer diameter is approx. 75mm and they are mounted on custom designed and 3D printed rims. @Jundis Thank you, I am glad you like it. The hooks are my own lego compatible design. Then 3Dprinted.

@johnnym - Thanks! Suspension is provided by flex in chassis. There is unfortunatelly no planned expedition right now, but next year should be one. For video footage from 2017 and 2019 see Youtube and use "Kostky Trophy" as keywords. :) I also rendered few pictures with extreme version of this MOC, that I plan to share as Control+ version soon.

Hi, I would like to show you my new toy. It is very simple yet effective RC offroader with modular body, winch, 2PFL motors (easily swappable to C+) and agressive design. It was purpose built for Kostky Trophy event, which is overland expedition (3-5km) with LEGO cars that is organised once per 2 years (approximately) by my LUG. This time I have prepared instructions guide for you. I know, some parts are printed. Can you find all four types of them? ;) All of them are just decorative and not crucial to the assembly or functionality of the MOC. other colour variants are also possible: Almost all colours with fenders available are possible (orange, red, blue, dark azure, lime, white)

Nice start!

@Reeber If you would like to built it without instructions, you can always reverse engineer any MOC from photos, or even try to contact the designer for other possible options how to get the file. But I am almost sure it will not be for free.

@gyenesvi Thanks! Yes, the liftarms in the steering system have axle as pivot, similarly as Madocca1977's Profa Tatra.

Wow, 21 studs is not much. Lookig forward to see it finished (or at least WIP). This one is 26 studs wide (front bumper). I got bunch of the hubs from lugbulk, but this truck uses cheaper "3rd party version". They work well, but needed some tuning.

Hi, I would like to show you my new toy - it is from scratch purpose built Trial Truck inspired by many existing MOCs (mostly by Madocca1977's Profa Tatra in area of drivetrain and steering linkage. The axis of rotation of the halfaxle is not coincident with the driveshaft. It packs modular drivetrain split between front and rear axles. You can choose between 2, 3, or 4 XL motors and very easily connect the two halves - Front/Rear or Right/Left. All halfaxles does have planetary gearbox HUBs in wheels, steering is powered by one L motor. In case you would like to build one yourself, check the building instructions: https://rebrickable.com/mocs/MOC-109209/Horcikdesigns/pdf-8x8-tatra-t813-trial-truck/#details You can see it in action in video below. (video from first race of this years season of Czech Lego technic Truck Trial Championship) - It used there only two XL motors and external custom power source (9.6 NiMH akupack) More photos of this truck could be seen here: https://bricksafe.com/pages/horcikdesigns/tatra-t813-8x8-trial-truck

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