The fastest 1:8 scale hypercar made of LEGO® bricks - WORLD SPEED RECORD
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- Опубліковано 3 гру 2021
- The video shows how we managed to set the speed record for a detailed 1:8 scale model made of LEGO® bricks.
This model has 3880 bricks and weighs 4.3 kg, so this wasn't an easy task.
A lot of power was needed to move this heavy model, so we used 5 x BuWizz 3.0 Pro and 10 x BuWizz motors for propulsion (plus 5 extra motors for other motorized functions).
AND WE SUCCEEDED! WE REACHED 36.5 km/h. WOW
And if you wondered why we chose GTA Spano, read the back story: buwizz.com/the-buwizz-gta-spa...
Our next challenge is to make a super-light car that will go much faster and set a new speed record.
Subscribe and stay tuned!
What is BuWizz 3.0 Pro?
BuWizz 3.0 Pro is a compact, high-performance remote controller for models made of LEGO® bricks. Powering the motors with embedded rechargeable Li-Po battery it enables complex large scale model cars to reach unprecedented speeds.
Power, acceleration, inclination and cornering G-forces can be shown on-screen thanks to 3-axis acceleration and motor current sensors inside BuWizz. With easy to use fully customizable iOS and Android app, BuWizz turns a smartphone into precision controller using Bluetooth® technology.
Website: www.buwizz.com
Facebook: / buwizzbrick
Twitter: / buwizzbrick
Instagram: / buwizz_brick
LEGO® is the trademark of The LEGO Group, which does not sponsor, authorize or endorse us or this product in any way.
#buwizz #lego #legotechnic #buwizzmoc #buwizzmotor #legodesign #buwizzbrick #technic #hypercar #racingcars #spanogta #supercars #supercar - Розваги
So from the short view of the front suspension that we got and the car's main problem just steering off in a straight line, I'd say you need to implement some caster angle. That will help to self center the steering.
If you check other videos, you will see, it has it :)
@Tom Havinga I believe the car does have caster, it is a half stud offset which is terrible for suspension geometry as the spring does not compress on the same plane as the KPI line. Toe in would be good for straight line speed but for for this design KPI and Anti-Ackerman steering geometry would do a lot better. There is also the problem of imperfect servo control where centered is not always 0 degrees. There needs to be a mechanical (spring loaded) return to center feature. There is also too much play in the pinion gear and rack for precise steering with Lego. Yes it has 2 steering racks for stability but that does nothing for the play, it only reduces the amount of toe out the front wheels experience under acceleration.
Sway bars are great mechanically but their main aid if not all of it is in cornering. The ABS plastic Lego is made out of, specifically the axle pieces, do not have the torsional rigidity for a functioning sway bar outside of very very light designs, like less than half a pound for 1 sway bar per axle. In a car this weight, the axles would twist absorbing a lot of the torsional torque before it rolled the body of the vehicle. Sway bars with Lego MOCs are generally for realism not functionality. For functionality you could add 4 sway bars in the 4 corners (if the top of the wheel is 12, the sway bars would be placed at 1030/130/430/730) to alleviate this issue but the torsional force to keep the body centered during cornering goes up exponentially with weight for a given speed so there is a materials limit here inferring a maximum total mass. There is also the issue of sprung/unsprung weight with Lego.
Current problems with this car and to get this lego car to handle properly, you also have to look at the weight and scale. It weights 4.3 kg or 9.5 pounds at a 1:8 scale. that is something like 2200 kg or 4850 pounds scaled up. That is heavier than the Bugatti Chiron at scale which handles like garbage because it has so much mass. Using the 40 tooth gear mated to a 24 tooth gear creates a ratio of 1.67:1. You lose a lot of torque here and increase friction substantially. With no load they should have been seeing 60-61 Kph or 4000 rpm (buwizz motors run around 2400 RPM at 11.1V) and yet only saw 50 kph. Those losses were from internal friction alone. Add in all the other frictions/resistances we see the top speed is 36.5 kph which is ~60% of the theoretical.
Fixes? Reduce internal friction, multiple ways to do this without using any kind of lubricant although that would be an option for some people. Reduce the weight substantially. Add KPI, slight negative camber and implement proper caster so the suspension load is on the same plane as the KPI line. Lastly adding in Anti-Ackerman steering geometry to keep wheels pushed into the hubs and high speed cornering ability. Also, if you take out all the other functionality, motorized doors, spoiler, fake engine and reduced the number of motors to 6 with 1 servo for steering and reduced the buwizz 3.0 count from 5 to 3, you would shed a lot of unnecessary weight. Also changing the gearing ratio from 1.67:1 to something like 1.286:1 (36 tooth gear to 28 tooth gear) You would increase torque, overcoming more friction losses, reduce top theoretical speed to 30 mph/47.67 kph, decrease weight which would reduce amp load on the motors and increase acceleration, possibly top speed because of all of this. You would also have the ability to corner without the wheels flying off.
Just my 2 cents, sorry for the book :D
Would be awesome to watch these 1:8 Buwizz-powered supercars racing against each other!
Awesome your BuWizz products are very powerful and I wonder what your drone/plane will look like because I had some ideas to build one of my own!
I think for the Buwizz 4.0 if you guys integrate a gyro then it would help a lot with keeping the model straight .
7:55 ten motors is about 25% more than eight motors, and Spano is about 24% faster than Lambo. Cool
they also have different power sources also the lambo has lass motors and 8 dead weight buwizz units ...
Congratulations buwizz team ^^
This is awesome
Now i wonder if they can make the fastest 1/8 scale bike, the new gyro integration it could be a viable attempt.
Nope, that would be me.... ua-cam.com/video/qtK89xJXr7k/v-deo.html
RC Superbike in 1:6.5 scale - I easily hit 28km/h on my first testrun - expect me to nullify that 36.5 km/h on two wheels :)
@@aFrInaTiOn true 🤗🔥
You need a windscreen for better aerodynamics
Gta spano top
€5000!?!?!? GTFO!
That is what i had to give for my 2004 Honda Civic Type R.
Feel like to join in you guys team and play together.😁
Great car, crazy built 🔥🏆.
Only problem of mine is that most people cant build it at home and have fun with it.
The problem with Lego models is that pretty much any RC model car will run circles around it for fraction of the price. I mean the wheels alone are plastic to plastic snap-ins. No bearings. How often do you need to replace moving parts if the model doesn't spend 360 days a year on a shelf?
Don't forget the weight that's the main problem my rc cars granted they are 1:10th scale but under or barely over a kilogramm the off road is heavier and the engine brushed or brushless they are more powerful than a handful of lego motors... the wekest of mine is a noname 750 turn brushed motor, wit ha fethat weight lexan body and a thin aluminium/plastic undercarriage.
Any chances we get the buildling instructions please ?!!!! Don't keep that for you guys !! Kisses from France !!
Where can I get one????
I would like to know if I can get building instructions if I buy GTA Spano
Unfortunately, we do not have building instructions for this model as it is a complex design and not intended for easy building. However, the model is both fast and sturdy.
5,000$ price half year ordering Time ,of you buy this ,you the word 1st number Lego fan XD
this thing is inspired by the gta spano hypercar
they legit said it
you guys should post that on lego ideas
I don't like Lego would ship out BuWizz units. And they would have to get licensing rights from Spania GTA
Is this gta spano replica?
yes...