ROBOTICS: Robotics is a branch of engineering that involves the conception, design, manufacture, and operation of robots. This field overlaps with electronics, computer science, artificial intelligence , mechatronics, nanotechnology , and bioengineering.
couldnot understand.....
let me define robotics
robotics is the curiosity inside us to make something new for fun and play
out of technical equipments by triggering our geek mind to saturation level.
lesson 1: remote-controlled robo toy
car.
COMPONENTS REQUIRED:
1. Chassis.
2. Remote
Control Kit
3. Batteries.
4. Motors.
5. Wheels.
CHASSIS:
The main frame of the robot, the body which holds the motor, wheels, the
receiver of the Remote Control kit and the batteries.
Motors can be used to drive a car which uses differential turning mechanism.
This is the simplest steering possible and is achieved by turning one motor on
and the other motor off to achieve steering. The on and off controlling of the
motors is done by using the remote
control.
The chassis is where you can really apply imagination to make the chassis as
light as possible and suitable according to the challenge. What is essential to
realize is that the weight of the motors is pretty standard and can't be reduced
beyond a certain extent. In a robot
with limited power supply (i.e. a battery) the power to weight ratio has to be
kept maximum. This can be done by limiting the weight of the chassis. Chassis
can be made out of:
- Wood (using right angles to attach motors, drilling and attaching the front
wheel is easy)
- Plastic (not easily available, but if found makes a very light chassis).
- Metal (Most common chassis which is available at Lamington Road, not
recommended because the motors can get misaligned very easily resulting in poor
turning).
- Duct tape (alone can be used to attach the motors to each other, makes a
fairly sturdy yet light chassis) 5. Plastic Pipes.
In a race, the lightest chassis is usually the best, whereas in a Robowars
kind of challenge, a heavier chassis might be advantageous.
REMOTE CONTROLLED
KIT:
Making a remote control kit at the beginners level is a hard thing to do. I
would suggest you go in for a readymade kit which is available online and
requires no experience to run and is fairly a beginner proof.
Check out
www.robokits.org
BATTERIES:
Used for supplying power to a remote controlled car, rechargeable batteries
are usually the best ones. I suggest you visit this shop called Pitambara at
Lamington Road which sells only batteries. Otherwise a standard 300-500 RPM
motor runs well between 9 to 12 volts, and alkaline batteries of the brand
Camelot or Zinc carbon batteries of brand Hi Watt. The appropriate series
parallel combination can be used to provide more power than a standard battery
can provide.
MOTORS:
For a remote control car, we use Geared DC Motors. A DC motor is a low
torque, high RPM motor which has to be geared down to reduce the speed and
increase the torque. The gearing is done internally in motors available in the
market.
Motors convert electrical energy of the batteries to mechanical energy, which
is used to drive the wheels. Motors should be of around 300-500 RPM and can be
bought for around 200 INR (4 US dollars according to the current rate) at either
Hindustan Electronics or Servo Electronics, both at Lamington Road. These motors
should be connected with their shafts in a line with each other such that
differential turning mechanism works.
WHEELS:
Wheels are mainly of two types in this basic car, one is the type attached to
the motors at the back, which are used for steering, and another trolley
(castor) wheel in front, which allows 360 degrees free rotation and avoids
friction on the ground. The wheels can be put on the shafts either by using
screws or by wrapping the shaft with masking tape first. The trolley wheel and
masking tape are available at any Hardware Shop. The other two wheels may be
bought out from a good collection at Servo Electronics.
If you will follow the instructions carefully it will help you.................