Transcript Robotic Arm Final project by : Mohamed Soliman Ostalab Content : • Introduction to robotics • History of robotics • Aim of the project • Tools required in building • steps of building • writing.

Robotic Arm
Final project by :
Mohamed Soliman
Ostalab
Content :
•
Introduction to robotics
•
History of robotics
•
Aim of the project
•
Tools required in building
•
steps of building
•
writing the code ( Programming ).
•
Wiring when using
•
Final picture and video
What is the rebotics :
It is the science of designing or building an
applications of robots ,simply “ it is the study of
robots”
Why is robotics needed ?????
 Speed
 Can work in hazardous tempreture
 Can work repetitive tasks
 Can do work with high accuracy
HISTORY :
First use of the word robotics by the writer
“Karel Capek” (1890_1938 ) in his play
R.U.R (rossum’s universal robots .published
in 1920 . The play begins in a factory that
make artificial people called robots
….Capek was reportedly several times a
candidate for the nobel prize for his work
AIM OF THE PROJECT
I have to use all the experience that
i had gained in three months to
build my project ( CAD - Circuit
design - 3D printing - Programming
- Molding & Casting ).
Most robotic arms are very
expensive but if you make it by
yourself it will be very cheap with
little budget about 1000 L.E.
TOOLS
 2 Acrylic sheets.
 6 Servo motors.
 6 Potentiometers.
 Arduino UNO.
 Breadboard
 Power supply.
 Power switch.
 Capacitors 10uF.
 Some screws as your design needs.
 Some wires.
STEPS OF DESIGN
FIRST IN DESIGN
BODY SEARCH
GOOGLE
THIS THE
REFERENCE
I used Autodesk Inventor to make my design, first i made single
parts, i tried as i can to make the same design.
These parts i made on Laser Cutter MachineThen make .DWG
file and put these parts on your sheet as shown :
Then export .DXF file and insert it to Laser
Cutter Machine ..And the parts after
cutting on acrylic sheet...
I saw it was hard to fix servo motors so i
made some supports to hold them with the
arm, and i designed them on Inventor, then
i extracted real objects from 3D printer .
I made the parts of gripper on Laser
Cutter Machine as shown
First thing mount servo motors to the
first disk and join them to the base
Then join the first disk to the base
Then join supports to the servo motor and
join it to the second disk ..
Then assemble the fan of the servo to the second
disk and join it above the servo motor by screw ..
Then let's construct the first arm, assemble the arm as shown in next
picture it's very easy and connect the arm to the servo motor.
Then let's make the second arm,
assemble the arm as shown and
connect a servo motor to the arm,
then connect the arm2 with arm1 by
the servo motor as shown ..
Then you will use supports to attach two
servo motors one is small which will
hold the gripper (end effector) and
another is bigger which is connected to
the second arm.
Now we have to construct the gripper to
make its require mechanism, we
assemble every part with each other as
shown in the next pictures ..
And now connect the gripper
with small servo motor ..
And the final shape of the robotic arm is
completed but it still missing the end
effector and the other sides of servos are
free as shown in next picture that can
make the system unstable.
So i added these 3D printed parts to the
back side of servos and go through to
the next plate and support the two
sides.
Now let’s make wiring
Connect potentiometers to analog pins in arduino and the side legs
with 5V & GND.
Servo motor has three wires ( yellow - red - brown ).
Connect yellow wires of servos to PWM pins in arduino ( 3 , 5 , 6 , 9 ,
10 , 11 , 12 ).
Connect red wires with the red wire of the power supply which gives
5V & 30A that can run all servo motors
Connect brown wires to the GND.
Make common GND for arduino and power supply.
Put 3 capacitors 10uF in parallel with servo motors to make less noise.
Now let's test the code and run the robotic arm ..
Have fun :))))))))
And this is a nice picture of the robotic
arm ..
And this is a vedio of the robotic arm..
THANK YOU =))))