・
To turn on the motor
When the switch contact is
pushed, it connects with
the printed pattern and the
electric current will flow.
PCB printed pattern.
The direction
of the elec-
tric current
The direction
of electric
current
Regular rotation
Connecting to this
side makes the reg-
ular rotation.
With a switch,
the motors
can rotate in
both direc-
tions.
Connecting the
other side reverses
the rotation.
Combining
these two
circuit.
Reverse rotation
The power goes
lower than the other.
When this side is
mostly used,
This means,
The motor will turn fast when
reversing.
The motor will turn slowly for
regular rotation.
Motor
The electric flow
will be reversed.
Ⅱ.
Technical Data
Ⅱ.Technical Data
Ⅱ.
Technical Data
1. Explanation of Controller
・
About the controller
AIR SHOOTER is able to move forward, backward, rotate and shoot the ball by controlling the
motor’s rotating direction, with three switches on the controller.
The controller: 1. turns on and off each motor, 2. decides the direction of rotation of each motor.
・
About turning on the motor
To turn on the motor, electric current needs to be flowing into the motor. There are paths
(printed patterns) on the printed circuit board, through which the electric current can pass.
When the switch on the controller is pushed, the switch contact inside is also pushed in and
makes a path for the electricity to run through.
・
Deciding motor direction
The rotating direction of the motor will be decided by the direction of the electric current.
When the electric current is reversed, the motor will start turning the other way. How does this
have to do with the controller?
There are two power circuits for each motor, which will decide the rotating direction as shown in
the illustration. The switches of the controller will decide which circuit the motor should connect
with.
The advantage of this system is that the circuit pattern is simple. However, when the motor is turn-
ing only in one direction, the battery side which is providing the power will be consumed more than
the other side. In other words, when the machine is moving forward much more, the forward
movement becomes very slow; the backward movement remains very fast. To solve this issue, side
motors are designed to use the opposite battery pairs when the machine is moving forward or back-
ward.
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AIR SHOOTER is able to make various movements by using three motors. How are the
motors controlled? In this section, let’s talk about the AIR SHOOTER controller mechanism.
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