Zerobricks

Might be a weird question, but i was thinking which parts we could have retire that nobody would miss and their alternatives would actually improve the sets. Here's a few examples. I think we can retire the normal steered hub assemblies: And replace them with Audi's hubs since most use cases actually require us to put in the ball pins anyway. Only exception might be 1:8 cars, but those need a new hub with larger brake discs anyway: Second candidate is the frictionless 8 tooth gear, which was used for it's attended purpose only once in 42009: Third, I would love to have the normal 28 tooth differential removed from current inventory, since it's weak and the 12 tooth gears can fall out very easy: And have it replaced with either red or yellow version of the reinforced differenital assembly: With the release of the studless version of the engine blocks and holders, I think we can safely retire the classis studded version of the engine block holder: And finally, I really don't know why we still have this lever around: What do you think? Any further ideas?

Thank you. 1 stud of suspension travel, even a bit more in the front, but by then the chassis touches the ground.

This model is a result of the lessons I learned while building a mini racer and failing. You can find more details about that here: To create a better mini racer, I increased the scale from 1:16 to 1:12 which allowed me to implement the following functions and features: Independent left/right side All Wheel drive Independent suspension on all wheels Dual 2-speed gearbox Steeering angle of around 30 degrees Working steering wheel Full interior with 2 seats Opening doors and bonnet Built out of 999 pieces Measures 35 x 16 x 10 cm Weight of 1 kg For color, I had the choice between orange and lime, so I went with lime for that Lamborghini look with gold rims: And here's the LDD version in all of it's 999 parts: Here are more photos of the individual groups, starting with main driveline: Gearbox switching system actuated by a PU L motor: Steering and rear hub support system: And finally the suspension system which also provides support for the bevel gears: The driveline is the most important part of the model and it uses two 2-speed gearboxes, each driven by both outputs of the BuWizz motors. A PU M motor switches the gears using the wave selectors. Suspension is supported by 8 hard shock absorbers. The suspension is at quite a high angle of around 25 degrees in order to keep the drive motors, steering motor and BuWizz as low as possible. High suspension angle also pulls the wheels together, allowing for a narrower bodywork. A PU L motor provides some 30 degrees of steering angle to the front wheels and also steers the steering wheel via a secondary steering rack. Everything is powered and controlled by a BuWizz 3.0 hidden in the front. Here's how everything looks like inside the model: More details and video of the model in action can be found in the video: To finish, I'm really happy both with performance and the looks of the model. It for sure fixed and improved mostm if not all the issues with the previous, smaller version. I also can't wait to compete with when the next opportunity shows up.

Thet refers to recentering the servo once reconnected.

Thank you for the form factor praise, I tried to implement as many connection features a spossible. Regarding axle hole, It's a feature, not a bug! I've designed the axle in same way as a train motor, so it acts like a safety clutch. So if you try to force spin the motor, it protects the internals from overloading and breaking. The small sacrifice of loosing clutch power and accuracy is worth protecting the internal gearing mechanism in my opinion.

Amazing alternative, it deserves a feature

Photos won't load for me...

Good job, but the suspension angle is way too extreme... Something lots of builders overdo. I'd recommend using older cv hubs which are smaller. Also I would recommend redesigning the steering to have links as straight as possible, having them at such high angle means they can easily be overloaded and moved while going over obstacles. I may build a quick chassis to help out.

Yes!

Anyone else worried about the lack of motorized sets this year? In 2023 we had 2 motorized sets, in 2024 only the Porsche with integrated hub and now in 2025 it seems nothing? In the era of Power Functions we would on average get at least 2 if not more motorized sets every year...

Please check this, all is answered already:

Just use it in place of the ball joint:

Check the first page...

Here's a nifty trick I found. You can use the click hinge part 57360 as the drive CV joint for geared and ungeared hubs: They can work up to some 25-30-ish degrees and will not slip easy. Using this part, you can reduce independent suspension width by as much as 4 studs!

Lubrication...

Of course now with the upcoming 3L suspension arm, smaller suspension setups will open up even more.

It does not colide, because the bottom arm moves away from the CV joint.

Because a 5L suspension arm would colide with the CV joint. Thanks to everyone for the praise.

As someone who also miniaturized a set full of functions, I can see you put a lot of effort not only in miniaturizing, but also finding alternatives for pneumatic functions. Well done!

Good find! I think this is officially the model with the lowest placed shock absorbers Also notice, that the ?KERS? is only engaged in one of the gears.

Hope everyone had nice holidays and wish you all the best in the upcoming year! I found some time today to record and edit another model I built for the 2024 Rolug Challenge. Basically the rules stated to build a pickup truck using 62.4 tires powered by a maximum of 2 L motors. After thinking of many different brands including Toyota Hilux, Suzuki Jimny and Hummer H1, I decided on a Hummer EV for the following reasons: The real car is big... Like seriously massive, which gave me well needed space, especially the width Real deal uses independent suspension on all wheels, which i really wanted to replicate at this scale All wheel steering which is a rare, yet really useful feature It's electric, so I didn't have to cram in a fake engine Next I calculated the scale by dividing the size of the wheels to the 62.4 LEGO ones and rounding it to 1:14. Afterwards I took some time to find a 3D model online, modify it in Blender to remove doors one one side and importing it to LDD. While the import was not perfect due to some random flipped nromals, it was good enough to be used as a reference. Agter a ew days of building in LDD, I came up with the following features and functions: Accurate 1:14 representation of a Hummer EV Pickup All wheel drive- Drive powered by 2 Power Functions L motors All wheel steering powered by a Powered Up L motor with different steering angles Powered and controlled by a BuWizz 3.0 Independent suspension on all wheels Working steering wheel Openable doors, tailgate and bonnet Detailed interior with seats, bench and center console Very stiff and robust chassis design Final version is built out of 1431 parts Measures 39 x 16 x 14,5 cm Weight of just over 1 kg Here's how the finished digital model looks like using the 3D reference: And without the reference: I am really proud of the suspension system which uses the 5 studded double headed CV joints, 5L and 6L suspension arms and old, hubs: Finally it was time to build the real one, and isn't she a beauty: I'm really proud how spacious and clean the bed is in the back, you can fit a lot of stuff there: Photo with everything opened up: And the underside. Notice the 16L drive axle going through a 5x11 panel, powering the FWD: And of course here's a video showinf the model in action: Finally you can download the LDD file here: https://bricksafe.com/files/Zblj/114-lego-hummer-ev/Hummer EV.lxf LDD upgrade guide: To wrap it up, I'm really happy how well it turned out. Even though it's a big, chonky boy, the performance is really good due to the simple driveline and thanks to AWS it's actually quite nimble. The only bad side I'd say is the use of no longer used parts and the slightly exposed drive gears. P.S. Would this post be better as a standalone topic?

I think I just figured out what those gear assembly is! A coaxial drive for a helicopter or such, both gears are driven in opposite directions by a third, smaller gear or maybe even the small yellow one from Daytona diff!

Look what i also found: https://euipo.europa.eu/eSearch/#details/designs/015085679-0004

Indeed, they are both used in both new F1 cars!

Could these form a longitudual assembly like a differential? Maybe something like a Tatra uses?