Continuously Variable Transmission (CVT) with instructions

Continuously Variable Transmission is a transmission type that has infinite speed ratio between two ratio limits (maximum ratio and minimum).

The system is based in two cones conected by other element (usually a belt), and moving this element along the cone you can change the transmission ratio in infinite positions.

Through arch bridge MADbrick 2011

I built this bridge for MADbrick 2011 event (Madrid, May 2011).

It has 256 studs(205 cm) between supports(spand), more 16 of each support (total 288 studs).

Through arch bridge MADbrick 2010

This is My first big scale bridge, designed for MADbrick 2010 event (Madrid, October 2010).

It has 128 studs between supports, more 16 studs of each support.

Retro MOC: Dodge Viper RT/10

I built this MOC between years 2000 and 2002(I was 15...), and it recieved a little modifications in 2005

In that time I spend over 80% of my parts to build this car
Some parts of the car comes from set 8448.

Planetary gearbox with instructions

The gearboxes tend to locked when they are transmiting high torque, in this cases you need to use a clutch for disconnect the gearbox to the trasmission between speed changes.

For eliminate this problems exist a gearbox type which doesn't need clutch for change speeds, the planetary gearboxes.

Advices to build a competitive RC Car. Part 3: Others advices

In this last part I will show you some other important features, as centrer of gravitiy or recomended wheels

Advices to build a competitive RC Car. Part 2: Front axle

The second most important element in an RC car is the front axle.
Without a correct operating and accuracy steering you can't drive the car properly.

Advices to build a competitive RC Car. Part 1: Gear ratio

This is the first in a series of articles in which I shall give advice to build a competitive RC car

In this first I'll show advices for choose the correct gear ratio

Porsche 911 (997) Turbo Cabriolet PDK

This car was previously called SuperCar 2011.

Note: PDK is the Porsche’s name to his dual clutch gearbox, and 997 is the generation (5th and actual).

Porsche 911 (997) Turbo Cabriolet PDK (Español)

Tras un par de mensajes de avances llego la hora de la verdad.


Nota informativa: PDK son las siglas de Porsche para los cambios de doble embrague, y 997 es la generación del modelo(es la 5º y actual).

The Boss (Support truck)

This is my support truck for Truck Trial competitions. Built in summer 2008

Truck Trial - Lizard 8x8

After built always Truck Trials 4x4 for some reasons, a few months ago I decided to build my first 8x8 for a local competition in Madrid.

Truck Trial - The Unstoppable

This is my first Truck Trial, built in Dicember 2007

I called it "The Unstoppable" because it is not possible to stop the motors only with traction power, before that is able to break the transmission...

PF elements:

- 2 XL motors, one per axle independently controlled.
- 1 M motor for sterring
- 2 IR PF Reciever
- 1 PF Battery box

Return-to-centrer systems

Retun-to-centrer systems are very useful and important for some mechanisms and almost essential for making RC cars.

But sometimes it is difficult to find a simple, reliable and effective system, so I show you some possible solutions to this problem.

Kart RC

This is my last track race car. Very light and agile. Built in June 2010.

It use:

- 2 XL Motors for drive
- 1 M Motor for steering
- 1 IR Reciever
- 1 PF Rechargeable battery
- 1 PF Switch (pole reserver)