In this last part I will show you some other important features, as centrer of gravitiy or recomended wheels
- Center of gravity
This point is very important.
The location of the center of gravity has strong affects in car's performance.
In the RC cars always the most heavy part is de battery. It's position is very important, and always you should put it as down as possible.
The weight distribution between both axles is very important too. In the real streets cars the theory perfect weight distribution is 50% in each axle.
But my own experiende the perfect weight distribution for Lego Rc Cars is between 45-55 and 40-60
Calculate the weight distrubution is very easy, for do it you only need a scales.
1- With the car in horozontal possition, put only the front axle in the scales, that weight is the front axle weight (F), after put the rear axle, this is the rear axle weight (R).
2- For calculate the distribution you should use this formula:
- Recommended wheels
To have as much grip as possible, several things are important:
- Soft tyres
- Tyres as wide as possible
Also for reduce the transmission torque is recommended use middle or little diameter wheels.
Are very recomended:
- 43.2 x 22 ZR
- 56 x 28 ZR
- 62.4 x 20 S, this wheel are not the best, but it's good and very common
- 68.8 x 36 ZR
All this wheels are common and cheap.
- Fenders
It is very recommended to use a fenders.
This is especially important in the front, for protect the front axle how normally is little fragile.
Also is recommended for the sides to avoid getting caught
If you like this article please leave a comment!!
15 comments:
These cars are karts?
Not necessary, in my bricksself folder you can find some examples for RC cars
Hola Sheepo,
una duda, existe alguna ventaja en el uso de la bateria con pilas respecto a la bateria recargable? El peso es mayor, pero aporta algo mas?
Un saludo!
Fitash
Poes la verdad es que no. Es cierto que una caja de pilas con pilas alcalinas da algo mas de potencia que la batería de litio, pero la diferencia es muy poca y en cambio tiene mucho mas peso...
Which language is your native language?
¿cuál es su lengua materna?
Spanish!!
Español!!
Sheepo you are the best! Love you!
hi sheepo,
I am trying to make an rc bugy powered by a xl motor for offroad use.What gaer ratio sould I use?
It's very important to know the wheels size... but with mid-sized, it will work fine in 1:1
thanks a lot! I am using 20x30 tyres.
sorry for double posting, I am the same anonymous.
Sould I use a diff?
With this little wheels not, you should look my XR7 rally car...
Sheepo you are the best! I am the anonymous with the rc bugy.thanks a lot for your advices, my car is now running perfectly!
go kart... I own a shifter kart that looks strangely similair to the green RC car.
Sheepo you are EPIC like LEGO GOD but where do u get all your pieces
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