Zerobricks

They came out really nice indeed. Any plans for the Ferrari too?

I just use the same slider as for normal center steering for the skid steering module, I have used this technique in almost every model that has independent driving motors. The reason for the new diff is that the CV joints in front hubs can accept 1,5 module axle length, so the diff was offset by half a stud, so that one side has a 3 studded axle and the other 4 studded axle. Now since the diff is offset, it would mean the input axle would also have to be offset, but by using the new diff, which has a thicker gear, that was not necesssary. I hope these pictures clear it up:

Thanks! Instructions for a single motor version are on the BuWizz website. The BuWizz app allows for torque vectoring using skid steer module. Setting the tracked steer module to 0 will cause the model to understeer, and 0.20 will make it oversteer, so currently I have it set at 0.10 I will demonstrate the effect in a video. Regarding the speed, I think it won't be that much faster than a single motor MOD, but it does have a higher acceleration, controllability and better braking performance. Because the wheels are so small and the car is so light, there have been no broken CV/cardan joints so far.

Few months ago I modified the set 42138 with one BuWizz motor for driving the rear wheels, one PU motor for steering and a BuWizz 3.0 to power the model. This MOD was really fun and all BUT, deep inside I knew I can do better, especially after being inspired by upcoming Bolide (and a bit frustrated by it's lack of AWD). So after a lot of trial and error, fiddling and trying literally all kinds of component placements, I came up with the following MOD: So you may be thinking, It's a different color, so what? It has a fancy diffusor, spoiler and a few body mods but what's different? Well... The answer hides on the underside photo: Yes, this small 1:16 model has all wheel drive with differentials! Not only that, but the rear axle allows for torque vectoring which allows me to fine tune handling, especially adjusting understeer/oversteer. The model has been assembled and tested with real bricks, I will post more media soon. AllI can say for now is that performance is excellent, there is plenty of torque to spin all 4 wheels and it can even do AWD powerslides.

I only have original Lego motors, so I don't know how others behave...

Because they are just simple meshes, not solid objects so that you can use vase mode to print with a 0,8 mm or higher nozzle. I used 0.4 mm layer height with 2 bottom layers so that all sides measure 0,8 mm.

There's another way. You can use the 1x4 rack bricks and set the steering in such a way that the gear just about slips at the end of the steering rack when the steering reaches the maximum angle. This way when the end is reached, the gear will simply start clicking. I used this technique in this old model:

From my experience both the red and blue U joints will simply slip out and your model will drop the 12 tooth bevel gears. I have a lot of real-life experience professionally designing models and even then I still test the individual modules for real when designing a model in LDD.

I uploaded .STL files of the sorting boxes here: https://bricksafe.com/pages/Zblj/modular-sorting-boxes

The reason the new clutch gears don't accept the old rings is because the new ones are designed to work on pins. But for that they need a thicker wall to accept the pin's ridge. The thicker wall is what is stopping the old rings from engaging.

1:10 3:6 4:4 2:3 6:2 5:1

Thank you for the praise. I used a service https://www.europosterji.si I think there's an EU service available too https://www.europosters.eu/.

Recently rennovated the apartment and here's my build corner:

Maybe the 5L beam was needed for the B model and the designer just put it into the steering linkage.

So functional! It puts some 2000+ parts, 200€+ models to shame!

Yes, the blue axle is the friction pin which is used with the pin joiner to form a safety clutch so you don't overscrew and push apart the build. I think a good use case would also be extension for mobile crane booms.

You are correct, you can see it here: So it's like this, 48989 without 2 pins basically:

Here's my 30 second representation of the new conenctor used in 42147:

Indeed, seems like 48989 without pins on one side. Oddly specific part though, and weird to see it in same color as 48989, I would expect a different color to prevent mix-ups.

Well done, a good blend of Technic functionality and Model Team/Creator detailing. How heavy are both models?

As promised, I took some time during the weekend to prepare more media. First is a photo of the model on my new vinyl floor, I really like the bright colors: And a couple of outdoor photos, showing the suspension in action: The front suspension is inspired by 8475 and acts like a pendular axle and always splitting the weight evenly on both sides of the wheels (important with open differentials): Tech specs: 773 pieces 34 x 23 x 17 cm 1100 g 4 BuWizz drive motors 1 PU L servo motor for steering 1 PU M motor for the gearbox Top speed 13,4 km/h Lastly here's a very detailed video where I explain the issues faced during the design phase and showcase the performance of the finished model:

Since LEGO obviously invested a lot of specialized new parts into this model (fenders, small panels), I expect they will create some new, lower profile wheels and tyres for this scale in the future.

It was really great to meet all the builders live. Also all these wonderful and functional models inspire me to build some of my own MOCs at this scale too.

Indeed they wobbled a lot, so I used a lot of half beams to stabilize the transmission rings on the bottom. I will talk about that too in the video.

This model (and it's prototypes) are a result of the following topics: Basically the idea behind this project is to make an offroader capable of driving on all kinds of terrain with a simillar perofrmance as the Wildcat 6x6 but having a lower weight So, why would I want to reduce the weight? While the wildcat 6x6 works great most of the time, it's high weight of 2,5-3 kg has some drawbacks: The model requires a lot of expensive electronics (12 BuWizz motors, 6 BuWizz 3.0 bricks) High part count (1869 pieces) Tendecy of front wheels falling off at hard landings High wear and tear of the individual components, which lead to premature failure - planetary hubs, CV joints And lastly high wear and tear of the handler due to it's heavy weight Of course decreasing the weight also means decreasing the power to weight ratio, since there will always be components which are needed regardless of the number od drive motors like wheels, hubs, steering system, suspension and frame. The first protoype, which I simply call Light 4x4 used only 2 BuWizz motors coupled to a 2 speed gearbox: While the model worked good in low gear, the high gear proved much trickier. The single gearbox put a lof of strain on the drive axle in high gear, causing it to melt, even with lubrication. Another issue was the high load of the motors in high gear, resulting in them overheating, while the motor could not even remotely apporach the 15 km/h top speed of the Wildcat 6x6. But not all was bad, I really liked the free-moving front suspension which acts like a suspended pendular axle, while having a much lower unspring weight. While I could make the rear suspension act like a pendular axle instead off front, i decided agaisnt it, since most of the weight is shifted back when crawling and I wanted to keep the rear stable. With that knowledge, I went back to the drawing board and decided to up the power for the next version... Medium 4x4 prototype: This version used 4 BuWizz motors coupled in a manner simillar to my 1:10 Acura NSX which negates the sideways load on the output axle of the gearbox. As you can see, this version was quite bigger and it used the reinforced differentials. The increased power drastically improved the performance, the top speed and overall power being simillar to the Wildcat 6x6. BUT the model had a few problems, main being the exposed gearbox which would get clogged and jam while driving outside. This version was aslo wider compared to the first prototype. Medium version prototype 2: This is another concept where the entire front axle is designed to pivot, but I ultimately decided to go agaisnt it due to the higher center of gravity and higher unspring mass. The final, universal 4x4 model: I have built and tested the model, but have yet to make any media, that's why I'm using LDD photos for now. I had to way to make the model more ingress resistant and narrower. This is where I came up with the idea of using the new, reinforced differentials as 28 tooth clutch gears for the high gear of the gearbox: This way the gearbox's output axle was moved a stud lower, allowing me to cover the bottom of the model with panels which prevent the dirt from getting into the gearbox without sacrificing ground clearance: The model inherited the front axle from the prototypes which acts like a free pendular axle. This keeps the weight even on both side of the suspension sosimple open differentials sufficed without a need for lockers. The gear ratios are a bit of a compromise comapred to the Wildcat 6x6, with low gear being 0,89x the ratio and high gear being 0,83x the ratio. Even with these differences, the model still reaches a very simillar speed in high gear, probably due to lower friction losses and lower rolling resistance. All in all I think this is a worthy successur to the Wildcat 6x6, even though it may not be as flashy, massive or functional (no skid steering). Final part count is 774 pieces which is 41% od the Wildcat 6x6 and the weight has been reduced to around 1,4 kg - around half of the Wildcat 6x6. I will be creating a proper in-depth video about the finished models and the protoypes, so I suggest you to watch this space for more upcoming details.