Makefun Insect-Robot User manual

Make you ideal fun
1
Insect-Robot Instruction Manual

Make you ideal fun
2
Insect Robot
1.0 What You’ll Learn
In this project, you’ll create an Insect Robot that walks forward on four legs. Actually it's not really an
insect because it only has four legs, insects does have six legs, right? However, the robot got the name because
of its shape with the thin wire legs and the infrared sensor as eyes .
We will briefly learn servo, arduino Nano and infrared sensor and build a body for the insect by binding
two servos together and shaping legs for it from a iron wire. Arduino will turn the two servos into one at a time,
which moves each pair of metal legs like real legs so the insect can crawl forward. We will also strap battery
on the body so our insect can move autonomously.
Once you’ve learned the techniques in this chapter, you can easily extend your Insect Robot with new
tentacles and sensors and new code. This easy-to-assemble kit is designed to enable creative engineering and
robotics learning for age 6 and above. It is the best way to start building robot on Arduino.
List of Components and Tools
◆Arduino nano V3.0 Atmel ATmega328 Mini-USB Board*1
◆SG90 Servo*2
◆SHARP GP2Y0A41SK0F IR Sensor*1
◆3.7V/ 600mAh Lithium battery *1(With USB Charger)
◆Steel Wire 200mm x 1mm*1
◆ABS Sheet (50x50mm)*1
◆Double Sided Foam Tape(L/W/H:40x30x3mm)*1
◆Cable Tie 1.8x100mm*5 , 4x200mm*1
◆3*75mm cross screwdriver*1
◆Some Dupont Lines
◆Scissors*1
Other tools :
Sharp-nose pliers*1
Electric iron

Make you ideal fun
3
Picture-2 Device list and physical connection
To start program, a Mini USB data line and a computer are needed.After the assembly is completed , you need
to use the Arduino IDE to burn the code. Please refer to《How to start.pdf》

Make you ideal fun
4
2.0 Components Introduction
2.1 Arduino Nano
The arduino Nano is an ultra-small simple I/O platform based on open source code,it has a big
advantage in size compared with UNO R3 board.
Figure-3
2.2 Servo Motor
Servo motors come in different sizes and prices and are based on different technologies. In
this context, we are talking about micro servos, which usually used in R/C toys. Servo motors
have a servo controller that directs the position of the motor wherever we want. The red wire is
power, the gray is GND and the orange is the data wire.
The motor itself is a DC (direct current) motor with gears. Servo motors usually rotate
rather slowly with a strong torque. You can buy micro servo motors with either limited
rotation or continuous rotation. Limited rotation models work for most purposes, and you can
control their movement quite precisely by degrees. If use continuous rotation servos, you can
control only speed and direction.

Make you ideal fun
5
Figure-4
2.3 SHARP GP2Y0A41SK0F
GP2Y0A41SK0F is a distance measuring sensor unit, composed of an integrated
combination of PSD (position sensitive detector) , IR-LED (infrared emitting diode) and
signal processing circuit. The variety of the reflectivity of the object, the environmental
temperature and the operating duration are not influenced easily to the distance detection
because of adopting the triangulation method. This device outputs a corresponding voltage to
the detection distance. So this sensor can also be used as a proximity sensor.
Figure-5

Make you ideal fun
6
3.0 Assembly
Through the above steps, we have learned about the devices, functions, parameters and schematic diagrams of
insect robots. Now let’s start to assemble.
3.1 Fixed two SG90
Figure-6
Gluing the two servo motor together with cable
Figure-7

Make you ideal fun
7
Tying the servo motor tightly with cable tie and cut out the excess.
Figure-8
Put a foam on the top of the servo (at A of Figure 9), which is used to support the NANO main control
board , as shown in Figure 10.
Figure-9

Make you ideal fun
8
Figure 10
3.2 Making infrared sensor fixed frame
Cut the paper to the shape and size as figure 11 shown.

Make you ideal fun
9
Figure 11
Bend the cutted paper into the shape as figure 12.
Figure 12

Make you ideal fun
10
Install the paper on the servo as figure 13.
Figure 13
Fix the paper with cable tie as figure 14.
Figire 14

Make you ideal fun
11
Install the Nano board on the servo as figure 15 but don’t fix.
Figure 15

Make you ideal fun
12
3.3 Install infrared sensor
Use the blue cable tie to tie as figure 16，figure17.
Figure 16
Figure 17

Make you ideal fun
13
3.4 Making mechanical feet
Step 1:Bend the iron wire to V shape as figure 18，then use plier to bend 90 degrees at the position about
1cm from the previous bend as figure 19 figure 20 .
Figure 18
Figure 19

Make you ideal fun
14
Figure 20
Step2：Pass the 2 feet of the wire through the two holes of the steering wheel.
Figure 21
Step3：Use the pliers to bend the two legs of the wire to the other end of the sharp corner as figure 22;
Note: Sharp-nose pliers is recommended to avoid breaking the white support.

Make you ideal fun
15
Figure-22
bending, The front leg is completed as Figure-23, and behind legs as Figure -24.
Figure-23

Make you ideal fun
16
Figure-24
Through the above steps, you have completed the general look of the mechanical legs,
Finally, the front and back legs bent, we can refer to the size shown in the figure on the wire
Figure-25. Put "shoes" on the four legs of the robot and insert the wire into the slip-resistant
particles (to prevent slipping during walking).
Note: The insertion process will be more difficult, you can first use a sharp object to slip a
small hole in the non-slip particles (be careful not to prick your hand), so the wire will be easy
to insert non-slip particles.
Figure-25

Make you ideal fun
17
.
Figure-26
Finally, install the robot feet on the steering gear, if you correctly installed and completed the
above steps, the worm robot can stand up as shown in Figure 27
Figure-27

Make you ideal fun
18
3.5 Making Wire
3.5.1 Making Power Cords
Figure-28
Firstly,cut the Gong Dupont line in Figure 28 from the middle, and remove the end of the Mother DuPont
line, as shown in Figure 29.
Figure-29

Make you ideal fun
19
Connect the wires together as shown in Figure 30, and weld the wires with electrical iron.
Figrure -30
Use the heat shrinkable tube to bind the conductor interface, as shown in Figure31.
Figure-31

Make you ideal fun
20
3.5.2 Rectifing the servo wire
Figure-32
First remove the 3P black connector terminal that comes with the servo cable, as shown in Figure 32. After
removal, as shown in Figure 33.
Figure-33