Portfolio
ROBOTIC ARM USING
ATMEGA MC
Project role: Arm designing, arduino configuration, testing
Duration: 4 months
Organization: Siemag Industries
The robotic arm is an concept which provide portable solutions to everyday or industrial need of material manure.
This product is specially designed to remove plastic parts from injection molding machines.
The project timeline was completed within 3 phases which involves linkage design, fabrication, assembling components, wiring, arduino configuration, power supply design, PCB prototyping, programming, GUI designing and final testing.
Phase I: Which includes Designing of linkages in 3D modeling software, Using Solidworks 2014 we designed an aesthetic model and than altered to reduce weight and relocate center of gravity. Which enhances the balanced and reliability of structure. Later all the parts embedded with fastener holes to provide ease of assembly with servos and frame.
Phase II: The whole system needs to be run through the servos. Which are controlled through specific coordinates from each servos. Each servo also provide and axis to the arm. There are total 5 axis which collectively provide designated posture to pick or place the object.
This is longest and most challenging phase where competence of mechanics needs to b backed with knowlege of Turbo C programming. Using servo library from arduino the servos was operated following sweep command.
Apart from that connection between servos and arduino on prototyping board was successfully tested with appropriate power suuply to provide sufficient amp consumption to each servo. Following are few images of connections at early stages of testing. Special thanks to open source community like getithub and arduino forums.
Phase III: Te final fabrication was carried out through laser cutting aluminum sheet. Aluminum is specially selected to reduce weight of the arm as these servos are having quite low torque. And new rotational mechanism incorporating thrust bearing to provide smooth function around the base with new development boards from RKI has finally able to make this idea feasible and reliable.