Sunday 20 January 2008

I'm back and I got a huge robot which i entered for the Winter Wonderland challenge in January.
This is the UAE. It weights about 8 pounds and is designed to go to the Arctic / North Pole with it's compass sensor. It includes all of my new sensors, motors, cables and NXT.

I started in December with the Dual Differential Drive then made the central pivot to tow the trailer. It wasn't until Christmas when I got my sensors when I dramatically improved it. I only got my IRLink in early January which is when I added the RCX.

Features
There are many features on this robot. There are: Air horn; courtsey of NXDave, 3D pivot; for full articulation in the centre, DDD (Dual Differential Drive); to improve drive, my tilting cam design of Botbot for the US sensor, phone placement; to take photos via bluetooth.
Sensors
The compass tells the robot where the North Pole is to navigate it and the Gyro checks for unusual stability which is probably when the trailer has become detached. The Acceleration sensor checks for a slope in which the outcome is to change the gear to accommodate the slope given. The IRLink sends IR messages to the RCX which will hold 6 more sensors and motors. The Light and Sound on the trailer work in harmony with the light sensor checking for the time of day and the light to decide what animals will be around with the Sound sensor listening for loud noises. A bit artificial but that is how it is. The Touch on the air valve is to sense when the Air horn is on; developed by NXDave. The second light sensor is to check if the mobile phone is in place for the NXT to take pictures etc. The US sensor (USS) basically checks for objects, and last but not least the 2 touch sensor on the front make a simple but effective double bumper.


Motors
There are 9 motors in this build with 5 servo and 4 technic. There are 3 to drive the DDD (Dual Differential Drive) which supply 9 gears, skid steering and a lot of power. The 2 other servos are for tilting the USS and for raising/lowering the snow plough. The 4 standard technic motor are used for: the air valve, refilling the air tank; which both have resonable uses. the last two are mainly for realism which control a radar and a side beacon light.

It has to be my largest robot yet and with 3 programs was almost Mission Impossible!

I will post more soon. Keep checking here for updates.

2 Comments:

  1. Anonymous said...
    Hey it's me, NXDave. Did you post your UAE on NXTLOG yet? I'd like to
    see it, especially how you incorporated my Air Horn! Your NXTLOG nickname is rjbsfarm, right? It seems logical since the name of your website is RjbsNXT.

    NXDave.
    RjbsNXT said...
    Yes, you are good at guessing.
    I was going to change my lego name to a more NXT incorporated one so there may be an RjbsNXT around soon.

    And about the UAE, it has been submitted but still not published :( (it is under rjbsfarm)

Post a Comment