History of Lego
Robotics and Mind storms
Lego mind storm was first
introduced in 1998 and since then it has been the best selling product of the
Lego Company it has got quite a history .in 1988 the first computer controlled
and programmed Lego robot was introduced.(History of Lego Robotics, 2017).
Mind storm ev3 is the third generation of the Lego mind
storm blocks it has improved a lot over the years if you compare it with the
mind storm generation 2 it had NXT brick which is not that much efficient as
compared to the brick which comes with
the mind storm ev3 .(Lego_Mindstorms_EV3#Overview, 2018)
The Lego mind-storm ev3 have introduced many robots that are
very efficient and technological advance robots. We also had some previous
experiences with the Lego mind-storm ev3 as we constructed the Track3r and the R3ptar
robots from the Lego mind storm ev3 kit in our first assignment. This time we
constructed one of the new robots of the Lego mind storm ev3 which is named as ROBODOZ3R.
The robodoz3r is one of the amazing robots of the Lego Mind
storm ev3.it is a very efficient robot with a modern design and having lots of
feature makes it a technological advance robot. It is a type of bulldozer robot
which can be controlled by infrared remote. it has two strong motors which help
it to move in all with speed .it has a
shovel with which it can pick up things and move them, an infrared sensor for
the autonomous mode and the follow me mode. It is also designed to operate on
uneven surface and mount on any surface.it is a very advance robot and has 360
degree turning capability too.
Figure 1 shows the ROBODOZ3R and its IR Beacon attached to
Construction and Programming steps
For the construction of the ROBODOZ3R we were given the full
toolkit of the Lego Mind-storm ev3 and as we had the previous experience with
the Lego mind storm ev3 kit ,so this
turned out to be very helpful and similar to our previous task we
divided the parts of the ROBODOZ3R between our team and constructed it .
parts shown in the figure 2 and 3 shows
the parts were constructed by me as they
were form page 1 to 15
Figure 4 shows the motor of the
ROBODOZ3R that was constructed by eddy and assembling was done by eddy too.
The default program of the ROBODOZ3R was already installed.
We just had to connect the ROBODOZ3R with the software to run it and we
connected it with the software successfully the most challenging task in the
programming of the robot was the follow me program mode which is explained later
in the report.
The figure 5 shows the default program that was already
installed in the Lego mind storm ev3 software to connect the ROBODOZ3R and run
Reflection of the challenges encountered during
The first challenge we faced in assembling the ROBODOZ3R was that we were
not able to connect the three tyres with the belt and the reason for this was
the belt as it was little extra stretched and it did not fitted the tyres
properly .this was a big problem for us and we find it really difficult to
solve this problem but later on we took help from our lecturer and he moved the
three tyres a little bit upward to make space for the belt to fit properly.
The second challenge that we faced during this task was
connecting the wires to the respective ports and we really struggled in this
part we made a mistake by connecting the wires on the wrong parts in the first
place, but after looking briefly at the instructions we were able to figure out
the ports ,but we had to disassemble some parts to connect wires to the right
The figure 6 shows that how the wires were connected to the
The ROBODOZ3R consist of various parts .the most important
part of the ROBODOZ3R is the two motors which are connected to the brick. The
brick provides power and commands to the motors to turn. The shovel is used to
move stuff the shovel can be the controlled by infrared beacon .the ROBODOZ3R
have a set of wheels on both sides which are connected in a set through a
rubber belt .One of the wheels on each side is connected to a motor so when the motor rotates the wheel
also rotates. The ROBODOZ3R can move left right forward backward and even it
can make 360 degree turns.
The figure above shows the large motor. There are two of
these large motors which were to be installed during constructing the ROBODOZ3R
these motors acts as the power house and provide movement to the ROBODOZ3R.
There was another motor in
ROBODOZ3R which was in the middle of the two motors this motor is named as
medium motor this motor is used for moving the shovel of the ROBODOZ3R upward
Figure 9 shows how robodoz3r uses its shovel to mount stuff
and move it between two points the shovel can be used by switching between the