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[WIP] Mini Ural 4320 6x6
Pego posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi! Since I started to play Spintires I have wanted to build the Ural 4320 truck. I just added an extra axle to my mini rock crawler (http://www.eurobricks.com/forum/index.php?showtopic=107051&hl=), to make it fit the proportions almost perfectly. I haven't started building the body yet, which I may need some help with -
Medium Scale Trial Truck
Pego posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
-4x4 -Live axles with panhard rods -M motor for steering -L motor for drive (geared 1/5) I wanted to build a truck, that would be as light as possible, but a full pickup body would have weighed it down (I have tried it). So I built half of a pickup without doors, which works very well. I originally wanted to use the smaller tires, but now in winter it performs much better in the snow with the balloon tires. What do you think that looks better? Inspiration: -
8x8 with Locking Differentials
Nalyd997 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hey everyone! I have started tinkering in LDD on my next project. Here are some photos This is the first time I have built anything this large so we will see how it goes. I plan on using 2-4 xl motors for drive and will have an m on steering and another on a gearbox/winch. I think I will build a similar chassis to that of Sheepo's Defender as it is pretty sturdy. Anyway I will report back soon. (I have attached the .lxf if anyone wants it) 8X8.lxf -
[MOC] Mini trial truck chassis
Pego posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
A small 4x4 chassis with live axles. L motor for drive (geared 12:20) and micromotor for steering. I haven´t been able to make an ok body design, so that is why there isn´t one -
Technic Trial Collection
Thirdwigg posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
As suggested by Jorgeopesi in this thread use this thread to post all trial trucks together for new people coming into Technic. Please post the year of completion, and a reference url. I'll get us started. My Kenworth T55, built in 2012. And my Mack Marble 5T, also built in 2012. -
[WIP] Rock Crawler
Technic156 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hey Guys, So I decided to go back to one of my first MOCs and wanted to rebuild the whole thing. Going with live axles, XL motor mounted directly to it, then geared down to 1:3 and have the knob gears to finally deliver the power to the wheels. I will probably do the front end tomorrow. So what do you guys think? Too overkill? :P And this is V1 -
RC off-road track test in Hungary
Tamas Juhasz posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi all! In June 2014 we made a little trip to test an off road RC track, thanks for it to the Home-Road R/C Team. It wasn't a race, just a test. Pictures can be found here: https://www.dropbox....palya-teszt.rar Video: download link: https://www.dropbox....t-kis-meret.mp4 I recommend the end part from 28:00 to 29:00, some interesting and funny moments can be seen. We used two crawlers, a 6x6 test chassis, and two trial trucks. I hope we can use the track in the future, a cooperation with the RC team is in process. If we had more time, the video would be better, but because it was together with the RC team, we had limited time before their race. The main test vehicle was a crawler, has also topic here: http://www.eurobrick...showtopic=97878 Hope you like it. Feel free to ask or comment. -
Sisu SA-150 aka "Masi"
Zantza posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello people of EB, this is my first post here. So, this is an army truck used by the Finnish military. The building process took about a month for me. The drive motor is of course an XL-motor, which is hooked up to Sariel's 2-speed trial truck gearbox. I'm sure you can find it on his site. Shifting gears works with remote control, and so do drive and steering of course. Inside the gearbox are the gears 12/20 and 16/16. One XL-motor has plenty of torque to drive this thing, especially with the V2-receiver. Both axles have 3-link live axle suspension. Front axle has hard yellow shocks, and rear axle has soft red shocks, for obvious reasons. The real truck has leaf springs, but as you all know they are rather silly to do with Lego. The steering M-motor is sitting on top of the front axle and is geared 8/40. The doors can be opened and the 5-cylinder engine in the cabin is attached to the XL-motor. The real Sisu has a 6-cylinder engine, but I couldn't fit that. At the rear of the truck you can find a spare tire, which is a lot smaller than the other tires due to lack space and saving weight. Sorry for the bad pictures :/ -
[WIP] Kamaz 4326 4x4
unimog123 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hey everyone, I've been working on this trial truck for 2 and 1/2 weeks now, and I am nearing completion. At first I wasn't going to make a WIP topic, but I need some advice for the cab design. So this is what I've been modeling mine after. My problem is the V8 engine, because the engine is too far back I had to make the cab longer as well. This totally throws off the proportions and makes the wheels look to small and the chassis too short. I also thought I would be able to make the cab in the new green and I have enough of the panels, but not enough liftarms. So I am open to color scheme suggestions. Just to let you know though, I could probably do it in Black, Red, Yellow, and possibly White with Blue. Here's what I have so far: As you can see I also have to accommodate for a tilting cab. It has full live axle suspension and an XL motor for drive and a Servo motor for steering. -
Lego TECHNIC Trial Truck
NXT45 posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hi guys! I am new here so I wanted to show you my trial truck! http://nxt45.files.wordpress.com/2013/11/img_0705.jpg Full description & YouTube video on my blog: http://nxt45.wordpre...go-trial-truck/ (how do you post YouTube videos?) As always Happy building! NXT45 -
With the hubless wheel post in the back of my mind and some 56x28 ZR Street tires on my table next to some old-style track links, something clicked in my head. 22 of the track links fit perfectly in the 56x28 tires. More interestingly, if you put 4L tiles or plates on alternating links, they also fit the inside of the Unimog tire. Of course you'll need more than 22 - probably between 40 and 50 - to fill the Unimog tire. The tracks can be driven by spur gears, so you could make a planetary reduction hub which could also be a portal hub. I don't plan to make any large trucks any time soon, but figured I'd post this in case it's useful to those who build trial trucks and other large vehicles. -
Zis e134 - 8x8 - RC
Tamas Juhasz posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello! This moc was made a while ago (last year), but I realized, there is no topic about it yet. I wanted to make a heavy and fast trial truck from Zis e134. Original model: My version: folder: http://www.brickshel...ry.cgi?f=496827 Basically, it was built for truck trial race, so it has a "propulsion motor/weight" ratio, each RC buggy motor carries ~ 1 kg. There are 4 buggy motor built in, each axle has one. Only two gearings (40:8 and after that a 24:8 reduction) are in the drivetrain in each axle, so I hadn't problems with efficiency. Total wieght became 4190 g. I used 1957 parts to build it. It's my longest and heaviest trial truck yet, total length is 610 mm (width: 283 mm). The 4 motors give enough power to reach 1,7 km/h top speed (flat surface), I used two RC units to power them. I think the most important part in these 8x8 trucks is the suspension. I tried to make a long travel one, which allows the wheels to make contact with the ground in extreme terrain also. The rear axles are built in a unit, which has a linkage (see pictures). This unit can bend also, but not sideways. The two front axles can bend sideways, and lenghtwise also. So without springs, the suspension does it's job: The second and third axle are connected together with these bars. They seems weak to here, but I can say, there weren't problems with those during the tests and races. They don't hold the axles, only make positioning, but of course, some force can be appear: Bottom: I made some details, like net in the driver's door, flags, grilles to the front: This truck was able to drive in heavy snow. Pictures: http://www.brickshel...y.cgi?i=5398922 http://www.brickshel...y.cgi?i=5398926 http://www.brickshel...y.cgi?i=5398931 http://www.brickshel...y.cgi?i=5398933 http://www.brickshel...y.cgi?i=5398940 http://www.brickshel...y.cgi?i=5398970 http://www.brickshelf.com/cgi-bin/gallery.cgi?i=5399011 http://www.brickshel...y.cgi?i=5398941 VIDEO: SNOW VIDEO: Hope you like it. -
Mercedes SK Trial Truck, & Roll Cages
landoandrews posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Here's a video of a truck I built during the summer. I am thinking about adding a similar type of roll cage to the cab of a moc I'm working on now. What do you guys think of this style of cab? -Something that I've noticed, is that in order to build a good looking external roll cage on a vehicle, you usually have to scale down the cab, or whatever your building around in order to make it look natural. What's your guys experience with roll cages? -
Lego tatra T813 4x4 RC Trial Truck V4
The Ghost Racer posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Lego Tatra T813 4x4 RC Trial Truck V4 The famous Tatra T813 in Lego remote controlled version, versatile and durable as the original. Modular Design The scale model, made by me after several months of work, contains most of the features found in the real version, to significantly affect its performance are the axle shafts, transmission, suspensions, chassis structure and weight distribution. Specifics -weight: 2Kg -height: 225,0mm, 22,50cm -lenght: 400,0mm, 40,00cm -width: 215,0mm, 21,50cm -3 XL Motors (2 for drive, 1 for sterring), 2 IR Receviers, 2 Battery Boxes Motor For Lego Tatra T813 I opted for the use of two XL Motors, which provide a high torque with an average consumption of energy, but low number of revolutions per minute. There are two transmission shafts (the real Tatra T813 uses one), each connected to a single engine, split the load energy, strengthen the chassis, but also to divide the stress that every engine needs to support. In the gear shaft there are numerous gear reductions with anti-snapping patented by me (final gear ratio 9:1). Suspensions Independent half-axles suspensions for each wheel, all-wheel drive and anti-snapping system between gears for maximum traction, unlike the original model, Lego Tatra T813 does not use differential: between Lego bricks there is no type of limited-slip differential, then, by inserting a differential whatever, at the first hurdle would stop the vehicle, and this should not happen. Axle shafts New axle shafts very strong, with anti-snapping system patented by me, gear reductions, increased torque transmitted to the wheels (final gear ratio 9:1), and steering (in the front). Wheels Individual tactical tires on each axle (94.3 x 38R). Comparison with the real model The Lego model made by me is very similar to the real one, in particular, the design of the cabin faithfully reproduced it based on original designs. Youtube's Video The video is of the V1 version, I will soon be making a new video. My blog's page For more information and news about this incredible model, please visit my web page dedicated to it,, http://gtathecomplet...trial-truck-v4/ -
Hello from Italy I'm a fan of lego, lego technic in particular. I love build trial trucks and rock crawlers, try to improve them and make them similar to the real models. I have a blog where there are many articles dedicated to my most beautiful creations..
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Custom tires for 56mm D. x 34mm wheel
The Ghost Racer posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I have to replace 8110's tires (94,8 x 38R) with rc rock crawlers' tires (like those in th picture) to give more traction to my Tatra T813 4x4 RC Trial Truck. Who of you know tires about the size of the set 9398 that do not cost more than $5 each? -
New Half-axles for Lego Trial Trucks - Tatra T813 4x4 RC Trial Truck V
The Ghost Racer posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
New Half-axles for Lego Trial Trucks - Tatra T813 4x4 RC Trial Truck V4 I accidentally reversed the gears of the portal hubs of this pic. For Lego Tatra T813 4x4 RC Trial Truck V4 I decided to make new half-axles, more resistant than they already were the previous ones, so as to transmit the maximum torque ratio possible from wheels to ground. The photo of the axle shafts made with Lego bricks will be available by early next week. Project Starting from my previous axles, which had little resistance in the attack for wheels, I added the portal hubs from Lego set 8110 Mercedes-Benz Unimog U400, made specifically for this use. In the portal hubs I put gear reductions for a total gear ratio of, together with other gear reductions in the transmission, 9:1, then, nine complete revolutions of the pinion of the motor, the wheel it will perform a complete one. Lego Tatra T813 4x4 RC Trial Truck V4 My new axles shafts will be used by Lego Tatra T813 4x4 RC Trial Truck V4; thanks to them will greatly improve its performance and by the end of July will publish a new article and a new video dedicated to Lego Tatra T813 V4. -
Lego Tatra T813 4x4 RC Trial Truck
The Ghost Racer posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Lego Tatra T813 4x4 RC Trial Truck The famous Tatra T813 in lego version remote controlled, Versatile and durable as the original. Modular Design The scale model made by me after several months of work, contains most of the features found in the real version, to significantly affect its performance are the axle shafts, transmission, suspension, chassis structure and weight distribution. It's powered by two powerful xl motors through a four-wheel drive, it has half-axles and various gear reductions. The Article of my blog To learn more about this amazing truck, visit the page dedicated to it on my blog, at the web address: http://gtathecomplet...trial-truck-v2/ -
"Still Alive" My next project Tatra 6x6 coming soon
KopMaister posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Greetings, fellow builders! i am happy to announce that i will be featuring my most resent build in this very topic. And as the title states it will be a Tatra 6x6 with following features: - Propultion 2x NXT motors. - Steering 1x L-Motors. - All wheel drive. (duh :P) - Full Tatra suspension with 4 wheel steering (the first two axles) - 1x battery box. pictures and hopefully a video will follow shortly. -
Tarantula Trial truck with building instructions
Jurgen Krooshoop posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Allthough this model was created in the summer of 2012, I’ve never been able to make the time to publish it. So finally, I finished the building instructions, make pictures and compiled a video to send this model onto the world wide web. This model was make as light and simple as possible. For propulsion 1 PF-XL was used to drive all the wheels. There are no differentials. It has 1 : 7.2 gear reduction, so it’s not fast, but it is very powerfull. Steering is done with 1 PF-M motor which is mounted inside the front axle. The unimog Portal hubs and ball-joint parts create 2 flexible live axles with smooth suspension. This thing is capable of easily crossing various obstacles (including Supercars LOL). It’s been designed to use the “standard” Truck-trial wheels and Power-puller wheels. And the colour of the bodywork can easily be changed by exchanging only 4 Technic Panels. My preferred colour are Metallic Green and Silver 8-) It’s been thouroughly tested. I brought 2 of these Tarantula’s to the Lego Fanwelt-event in Cologne 2012, where they were driven (tortured) by kids between 5 and 8 years old. Both trucks survived, not 1 u-joint or gear was broken. Free buiding instructions are available on the instructions page of my website. The model consists of 819 parts and weighs about 1 kg when using the 8878 rechargeable battery. Of course, the 88000 AAA-battery box can be used as well. -
The Texas Tornado (4spd crawler)
AndyCW posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
After my last truck with a two speed transmission and air lockers, I decided to try more gears in my transmission. I searched for transmission ideas and came across the regular four speed transmission. The common wisdom is that driving rings cannot handle any torque. This is accurate. I had to increase the gear reducton in the axles and step up the motor on the transmission input to reduce the torque that the transmission "felt". I also maded the linkage from the servo to the driving ring incapable of being backdriven. It still pops occasionally, but reengaging the driving rings with the servos clears it up. It also has a neutral gear and this allows it to roll after the throttle has been released. Eliminating any extra gear exchanges to improve efficiency, reducing weight, and maintaining a rigid structure for the transmission to operate within became critical. I tried to get rid of the knob gears connected to the rc buggy motors outputs, but was unsuccessful. 12t to 12t ground the gears down 20t to 20t also ground the gears down 24t to 24t crown would not fit. Caster angle on front axle is accomplished by less angle on the lower links. I tried a wider version of the LPE power unimog axle that has kingpin inclination. It worked and did not fall apart, but its turning radius was larger than a traditional steering axle and so it was discarded. It still is assembled, just not mounted on the truck. I made air lockers based off of the new 3 stud wide differential, but ended up discarding them because they added unnecessary complication. I killed several u joints on the driveshaft before I moved up to 9:1 reduction in the axle. The u joints that are installed have wax string wrapped around the ends and a small piece of heat shrink tube over that. This is a repair because all of my joints are now cracked. If a tire becomes blocked in first gear with the steering turned, this design can quickly destroy u joints in the axle. There are a couple of altered pieces. 3l bars have had a couple of mm ground off to secure the towballs on the chassis and there is a 4.5 stud axle going to the knob gear on the transmission input. Both elements could be done without. It would require some redesign though. Moving to a 9398 style suspension and increasing the wheelbase would eliminate both of these issues. I used 4l bars to secure the towballs in the axles. They fit into the back of the towball and prevent it from popping out of the lift arm. Questions, comments, concerns, relevant war stories???? v/r Andy -
Compact Uniknick design
Morj posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Somebody (legomuppet9) asked me to publish compact uniknick steering/articulation part (based on Mbmc design published in this post). Well, here you go. It's still untested in a finished truck, but no gear cracks or clumsiness under manually applied stress. Being a bit lazy now to build a truck around it, need inspiration. Obviously, the intended use of this center part is to connect battery and cab to the inner half of the turntable opposite to the steering motor (the front one) and to connect powered axles to outer (gray) halves of the front and rear turntables. P. S.: brickshelf folder with high-res here. -
Trial truck Unimog (WIP)
jorgeopesi posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
A easy trial truck with 2 gears and steering with a small linear actuator, with Hispalug trial truck rules. http://www.youtube.com/watch?v=3VGVS4XgWTk&feature=plcp -
On MOCpages, Marin Stipkovic posted numerous photos and videos of his "trial vehicle (though not really a truck) I built for a truck trial event in Brežice, Slovenia organized by Zblj1987 and Stari89. The event was great and we all had fun. Weight: just under 1500 g Drive: 4WD - 1x PF XL motor geared down 7:1 - differentials (with a manual lock on the central one) Steering: front wheels - 1x PF M motor geared down 15:1 Suspension: linked pendular suspension (no shock absorbers) Features: openable doors and trunk (battery housing), folding ladder, movable skull Obviously inspired by this set." -
8x8 Trial Truck, The Pumpkinator!
Saberwing40k posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Well, here we are. This is my latest truck, and I call it, due to the color, the Pumpkinator. All eight wheels are driven, and the front four steer. Drive is via one XL motor, geared down roughly nine to one. The axles are loosley inspired by a design from Zblj, and are very tough, except for the third axle, which has grinding gears. Suspension travel is not a whole lot, but it does the job, and is fairly compact. This truck is actually a project I was making for school, and was originally going to be an Oshkosh PLS truck, although this did not pan out due to time constraints. I built this thing in only 6 hours! Anyway, I got a good grade, which was a good thing . I may or may not make instructions, and a video. Would anybody want either of those? Anyway, on to the pictures, and some additional details. The side views, showing the roll cage (made out of 32l axles), the suboptimal location of the battery boxes, and the spare tires. The underside view, showing the drive axles, the drive motor, and the suspension setup, which is 4 link. A closeup of the rear 2 axles, showing the mechanics. The connection to the third axle is rather weak, and the gearing skips. However, it only does this on extreme slopes. The front axles. This was the hardest part to make. The steering motor. The cabin has no interior, as it was literally an eleventh hour addition. The connection from the front motor to the steering axle. The steering clutch sometimes balks, so that's goin to be redesigned. The top of the suspension, which is mostly identical for all axles. Front view with the lights on. Rear view with the lights on. The very front, but it's not actually based on any Mercedes... Suspension travel. Upper limits. Enjoy, and keep on building!