We Tried To Make our Hydraulic Arm To achieve the following Competitions:
reach the greatest distance to deliver a given object
pick up the heaviest possible object
deliver the most objects in a given amount of time
function in an assembly line
Pick up Objects based on colors.
battle against another arm for an object
rotate as well as reach and grab
Hardware modules:
Every thing from scratch.
we make initial designs and a lot of testing since our knowledge in mechanics is limited ..
We use old VCR ,Voice recorder ,CD ROM, old wall clocks gears , table clocks gears, medical syringes, wood…etc
We use PIC18f4620 microcontroller with its built in PWM capability to control the 5 DC motors on the arm.
We tried to reduce cost of electronic parts by using a relay-based technique , that works fine instead of using many Microcontrollers and H-bridges, which costs a lot!.