RS 4.0 - The Apex
The RS4.0 is the latest High Performance Lego car from Alternative Engineering. All the experience gathered in the last 5 years of constructing has led to this benchmark and made it what it is: THE APEX.
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With the instruction folder you get everything you need to build the car step by step. The LEGO car itself is build with a 400 step Studio.io 2.0 instruction which also contains a part list. If you finished building the LEGO car, 2 videos will show you how to motorize your RS4.0. Needless to say, you won't need to look up something on your own, everything is explained and shown in the instruction videos. There will also be a second part list for the electronics you need to order. Additional pdfs files will lead you through the building progress.
LEGO DIGITAL DESIGNER MODEL
Studio.io manually made 400 step instruction
3 ADDITIONAL PDFs
2 INSTRUCTION VIDEOS
2 PART LISTS
WARNINGS AND TIPS & TRICKS
RS 4.0 - The story
What was the RS 4.0 supposed to be?
Our creations are based around one or multiple key improvements. In the case of the RS 4.0, Christoph our head engineer and founder focused on 3 things during the design and construction process. After approximately 3 months of conception, construction and testing, the result was better than ever imagined. The RS 4.0 turned out to take everything onto another level and comes closest to handling like a hobby grade RC car.
Improvements over it’s predecessor
First of all let’s take a look at the engine. The new engine in the RS 4.0 provides 30% more power than the old one. Using 2s Lipo batteries the engine can deliver around 150 Watts of power. To give you an idea of how powerful that is, you can see a graph comparison between a normal LEGO XL motor and the engines being used in my models.
Middle Differential Unit
The most complex feature added in the RS 4.0 is the middle differential, which has a massive impact on the handling of the vehicle. The difficulty during the design and construction process was that 100% of the engine power is running over it whereas on the front and rear differential the power is divided. My solution was to power the middle differential from both sides with a gearbox unit.
The Chassis was completely redesigned to make it much sturdier and stiffer. As a result, the RS 4.0 is definitely the tank out of all models.
Another big improvement comes from the suspension. The suspension travel was increased to 24mm which allowed me to make a softer setup. The result is a much better handling on rough terrain. And there is more on the suspension. The RS 4.0 is driving with 8 shock absorbers instead of 4 to provide a more evenly distributed shock load on each wheel suspension.
The front end and the steering were completely redesigned to improve the handling even more.
Our main instructions are manually made with Studio.io 2.0 a brand-new LEGO designing software. The Instructions are of high quality and easy to follow. Two videos will lead you through the integration of the high performing electronics. We additionally provide PDFs with maintenance and driving information.
Since I started challenging real RC cars 5 years ago I couldn’t find a Lego or plug and play RC motorization that fit my needs. So I started configuring my own. My configured Motorization set makes no compromises in terms of weight, power, reliability and range!
2,4 Ghz Radio Control with 500m Range
The Radio control plus receiver is provided from the German brand Absima. It stands for high quality and fits the needs of all Alternative Engineering RS models perfectly!
- A.F.H.D.S. 2.4Ghz system
- 2-channel radio
- Ergonomic grip
- Steering wheel with rubber foam
- Internal antenna
- 3-channel receiver with “failsafe” function
High Performance Brushless Motor
The core element which makes my cars upstanding from normal LEGO cars is the high performing brushless motor. It has to be very light, powerful and small to make the often considered impossible possible.
- Max.continuous current: 18A/30S
- Max.continuous power: 150 W
- Weight: 39g
- Max.lipo cell: 2-3S
Lipo Battery + Charger
To provide the needed 30 Ampere for the brushless motor I am using a 7,4V drone battery with a leading power-weight ratio. To enhance the battery lifetime of around 500-1000 circles a balance-charger comes with the Set.
Electronic Speed Controller
With the 30A electronic speed controller it’s possbile to have a steppless throttle and drive backwards. Advanced drivers can also configurate a auto breaking function.
After all, a powerful car has to be controllable. The 4,5kg strong metal Servo provides fast and precise Steering. All RS models are able to change the steering direction in 0.14 sec.
What's the difficulty of building a LEGO car using my instructions?
Building one of my cars is a nice challenge for more experienced LEGO builders. The gap less instructions are made with the LEGO Digital Designer. If still a problem occurs you can contact me to get personal help!
Which 3rd parts are used for the motorization?
High quality RC components for customers, who accept nothing less than perfection.
How can you contact us in case of uncertainties?
You can contact us via the contact page (in the menu) on this website, Youtube, Facebook, Instagram or E-mail.
How much is the shipping and to which countries it's possible to ship?
Shipping costs are between 0 and 9,99€, depending on the car you ordered. Alternative Engineering is now shipping everywhere.
How long do I have to wait for my ordered set?
We always try to make shipping as fast as possible. Your set should within 1 week after payment processing, in Europe even faster. Additionally you can always check the status of your order through the tracking number.