bonjour

I am working on a 4x4 9398 with 4 motors NXT and 2 servo for drive ;

The motors are strong ;

I use 2 MUX to get 4 motors with the drivers from Xander ( thank to him ! );

and a PSp witj drivers from Xander also

the MUX use 2 ports ; it would be better to use only one , but it need to have 2 I2C adresses for MUX ,and it seem not to be OK with the drivers ?

if so I could use sensors to drive the 4x4 as a robot ;

the drive for wheels is bad : the servos are weak ; it would be better to use the new servos from lego ,
but I do not know how to do as the drivers for PF seems to be for M or X motors only ( ? );

I hope to improve it ...

didier

please clic on IMG to see videos

Bonjour

I improve the drive with a gear on the servo ;

now drive is good as we can see on nthe video below ;

please wait some deconds before to see the 4x4 ;

didier




[img=http://images3.photomania.com/3338976/1/_rad7D930.jpg]