Sunday, April 28, 2013

Project: How to connect the antennas

More information
And more
This is the cool part of the design!

You will need:
1.- Components and Materials:
  • wire for the antennas
  • 2 x faston terminals (electrical connectors) (option 1)
  • Heat shrink that will fit over the wire and the faston connector (option 1) or SPDT terminal and wire (option 2).
2.- Tools:
  • Pliers. Use the pliers to press down on the terminal connectors to hold the wire and the SPDT terminal tight. You could need some glue or soldering.
  • Glue gun
  • Lighter

Saturday, April 27, 2013

Project: Placing the support and traction elements of the robot

The back caster
More information
You will need:
1.- Materials:
  • 1 x big paper clip (or some wire)
  • 1 x plastic or wooden pearl.
2.- Tools:
  • Pliers
  • Glue gun
You can make a long caster to prevent the front to tilt. 

Motor grip
More information
The shaft of the motor is the rim and the heatshrink is the tire. Since the robot rests on the shaft of the motor to move around, you will need some grip.

Option 1: You will need to shrink the heatshrink onto the motor shaft. We can use a heat gun, a lighter or the tip of your soldering iron.

You will need:
1.- Materials:
  • Heat shrink that will fit over the motor shaft.
2.- Tools:
  • Lighter
  • Scissors
Option 2: Water connectors.

Electricity review

Wednesday, April 3, 2013

Using electricity safety - Dangers


Project: How to connect the elements of the circuit

1.- Materials
  • Tin

  • Wire

2.- Recommended Tools:
  • 1 x soldering iron
  • 1 x wire stripping tool
  • 1 or 2 x pliers
  • 1 x tweezers
3.- Some recommendations:
  • The soldering iron and the tin have to be holded by the same student.

4.- Soldering elements:
SPDT Switches
Soldering the SPDT switches I (1. NC with NC and 2. NO with NO)
Soldering the SPDT switches II (3. C with Motor and 4. C with Motor)
Soldering the SPDT switches III (5. (+) battery holder with NC and 6. (-) battery holder with NO) On your AA battery holder you have a red and a black wire. The red wire is positive ( + ) and the black is negative ( - ).

7.- Motor with Switch and 8. Motor with Switch.
9.- Switch with battery holder.

Solder the wire like on the picture and everything is ready to be tested.

Put some battery in it (3 AA batteries)
Both motors should turn.
By pressing the left SPDT switch the left motor should turn the other way.
By pressing the right SPDT switch the right motor should turn the other way.
If they don't, CHECK EVERYTHING!

Project: How the circuit works