2016

Week 9/10

Mechanical design and Machine design

 

The Candles and Diyas are very important part of Indian culture. Many festivals are celebrated in India are focused on the light and the tradition of lighting. The Diwali is a festival in which the illuminations with lighted diyas bring the supernatural brightness and joy with the hope of finding light in darkness, achieving knowledge where there is ignorance, and spreading love amidst hatred. Diwali is also known as the Festival of Lights. Light is significant in Hinduism because it signifies goodness. So, during the Festival of Lights, diyas, candles or oil lamps, are burned throughout the day and into the night to ward off darkness and evil.

"Machine that Make", Term says a lot.

 

Initially all of us started to think upon what all we will be making for the machine. Initial ideas were collaborated  together for the major decisioned or idea brainstorming and machine building.

 

The elements that we planned to keep in the machine were derived from the various techniques that we were already known.

 

It had the ideas of multi-tool router, gripper, drawing maker on the basis of vinyl cutter, automated 3d scanner compatible our mobile phones, etc. With all these ideas nobody of us was satisfied, because we thought to make something for different usability than already available, and we again started thinking and came up with an idea of decorating candles with melting wax using MTM module and then we started working on it.

 

We were working on a single axis rotatory module. But due to customs and other transportation reasons we were not able to get the MTM kit.

 

 

 

 

 

 

 

 

 

 

 

We all re designed all the components and parts and had a clear understanding of what we are making and how we will do it.

 

Later we decided to start working as a system and the flow of work is as following:

 

• Making a basic design and structure of machine
• Figuring out the material and components needed
• making a 3D model
• making a working model of machine
• making it automated
• final testing and video making

 

 

 

 

 

Rudrapal :

Once all the ideation is done, I took upon the task to make the 3D of the machine and also detail out what the machine have and how each components are connected to each other. I started working on the 3D model files while tapan started working on the materials required and their assembly and vipul started work for the extruder/holder. Once the model was ready I made files for the laser cutting and side be side tapan started assembly of the unit. Then the task was transfered to tapan as the assembly was done by him. Then I started working on the website and the documentation part of the machine. The best part of the MTM weeks were that i learned soo many new ways to work on electronics, as we have very different skill set as individuals and so the week came up with all the new and exiting decisions and discussions among ourselves and the other people working in the lab.

 

Tapan:

When the laser cutting files were made I started working on cutting and assembling the parts of the machine. Then I started working on the fixing of the pulley and belt and other components in the machine. Once the machine is assembled then the electronics in added into the system. I started working with vipul and mohit (one of the helping hand for electronics as he taught us how to make a system work and do coding). I started working on the coding part of the system and developed the code for moving the extruder.

Vipul :

Aditya:

I helped at very initial stage where the system was not there. We decided upon the final machine that we were making. Once that is formed rudra started working on file and I developed the extruder that has the complex geometry that can lock the belt and also it holds the extruder or the head that will work.

I am the youngest member of the team and I kept on jumping on each individual work and discuss and help them at any point of time with anything that they wanted. I helped with the joining of the circuit and fixing of the motor to the system.

 

Plan

Front view

Side View:

End stoppers

#include <Stepper.h>

 

// change this to the number of steps on your motor

#define STEPS 200

 

int val[] = {35, -35, 23, -23, 34, -34, 12, -12, 50, -10, 23, -73, 10 };

int i = 0;

Stepper stepper(STEPS, 8, 9, 10, 11);

 

void setup() {

 

  stepper.setSpeed(40);

  pinMode(7, INPUT);

 

}

 

void loop()

{ while (i < 10)

  { if (val[i] > 0)

      for (int j = 0; j < val[i]; ++j)

      {

        stepper.step(1);

      }

 

    if (val[i] < 0)

      for (int k = val[i]; k < 0; ++k)

      {

        stepper.step(-1);

      }

 

    i++;

  }

  if (i == 10);

  i = 0;

}