DESCRIPTION/HISTORY

Bot Wot was built from scratch at Mount Druitt Tafe in James Kok’s mechatronic’s class.

 The Polycarbonate base on the other hand, was designed and created through Autodesk Inventor in Tim Lovett’s 3D Modelling class. After acquiring a drawing of the base, the base was then cut out using a CNC Boxford Router.

Easy Part Done.

Next was to attach the double gear box (wheels assembled and attached to the gear shaft) which was done by drilling two holes into the base and then held in constraint with two bolts and nuts.

Next was attaching the front wheel castor, The Pic Axe using the similar process to attaching the gear box.

The battery box was attached to the board using Velcro strips.

Now the fun begins. Hours of soldering and wiring up circuits... Using what we were taught in James’s class, the infrared receiver circuit and infrared emitter circuit was put together and soldered on a small circuit board. This was done for all three sides (Left, Front, Right) on separate circuit boards. The boards were shaped through cutting and sanding and then attached with bolts and nuts.

Next was connecting to the correct inputs on the Picaxe for the emitters and receivers. Emitters were connected to input’s 1 and 2 (These were the Pwmout inputs). Left and right emitters were done in series because there is only two Pwmout’s on the Picaxe. Front receiver used input 7, Left receiver used Input 6 and right receiver used input 5.

Lastly, was programming Wot Bot. Using various IF Statement, Wot Bot was given the ability to guide itself through to the end of the maze.

E.g.  IF input 7 = 0 and input 6  = 0 Then                  (Detects wall in front and to the left of robot)

        Gosub turnright                                                 (Go to the motor command for turning right)

        Else

        End If