description  of Robot from Zabdi 

Ramp 
The type of material I used was a plank of plain plywood, from the store.
(latter used it for a wood work project). 

Height:	50cm  
Base:`	48cm

Description about how the robot came to the final design

first I thought that I would use a three wheeled robot, because there would
be greater pressure on the tires meant more grip on the plank. But the robot
kept on tipping over. This meant that I had to abandon this idea 
 
Next I found that the further up the RCX was on the robot the greater incline
it could rest on, but I had to be careful not to go over the 12inchs limit. I
thought that the more torque that I had the greater incline it could go up. 

Next I built a 4 wheeled robot, that could turn if it got to the edge of the
incline. But when every it turned the tires would slip from the axle and the
robot would slide down the incline. changing the amount of torque made a huge
difference. I put in one worm cog and it went up a greater incline than when
I had two worm cog. 

Next working out a way to get the RCX up to the front when on the incline and
then into the middle was hard, because when it wasn't on the incline the RCX
up the front would make the robot tip forward, while if the RCX was in the
middle of the robot on the incline the robot would roll backwards. This was
solved by adding wheels on the front and when it is on the incline the weight
of the RCX makes the front wheels lift off the incline. 

Then I fell sick, and term was coming to a close in New Zealand so I lots of
assignments to finish off so I couldn't work on my robots program. That explains
the simple as program.