17. Applications and implications¶

Assignment¶

• Propose a final project masterpiece that integrates the range of units covered, answering:
  • What will it do In few words the idea is to make a robotic hand to play JOKENPO with my Son! He can play alone pushing bottons or can play with me using an PC to control de hand.

Who’s done what beforehand¶

From the course archive I could only find some weekly assignments Ztaylor, Roberto Kota tomaru ZTaylor 4 and one final project - Chenk that was I robotic hand to grab things.

What will you design¶

The three main part of the project:

- mechanical (arm, hand and components box)

- Eletronics+ programming

- PC application

What materials and components will be used¶

Mechanical:
- 3d print plastic filament (250g)
- Acrylic
- Polypropylene

Eletro
- Contact button (5x)
- Resistors 470 ohms (5x)
- Servo motor 9g SG90 (5x)
- Servo motor MG995 tower pro (3x)
- ESP-32 DevKit (1x)
- 3-pin male connector bus (8x)
- 15-pin male connector bus (2x)
- 15-pin female connector bus (2x)
- 5V power supply (1x)

Table 1- Material and Components

Where will come from¶

All the material needed for the development of the project came from Insper or from the UEA university laboratory

How much will they cost¶

Table 2- component unit Price

The total value in reais is R$ 559,39 BRL considering tha today (06/21/2021) the dolar cotation is 5,04 BRL 1 USD. The total value in dolar of the project was around $110 USD.

The work time necessary to develop the project considering that I had a big Learning curve was: - 2 weeks- CAD (modeling) - 2 days printing - 1 day Laser engraving - 12 day Programming - 2 weeks PCB design/Electrical Schematic/BOM definition (eletric in general)

What parts and systems will be made¶

A component box with Acrylic and Polypropylene

A board with ESP and eletronics components

A PC interface with processing

What processes will be used¶

• Computer Aided Design (modeling the hand, arm and component box with Solidworks and Vcarve)

• Computer controlled cutting (componenet box - CNC milling - Shopbot)

• Eletronics design and production (PCB layout Protheus, fabmodules and Monofab Roland SRM- 20 to make the PCB)

• 3D Printing (print the hand and arms- simplify 3D to slicing and seth printer to print )

• Input/Output devides ( bottons and servo motor)

• Embedded Programming and Interface ( programming in IDE arduino e inteface done with processing)

What questions need to be answered¶

The main question to be answered is whether the system will be simple for a child to use? and Another question is whether through the internet the system will have some kind of lag in the answer? making it impossible for the system to function.

How will it be evaluated¶

For the scope of the course, the goal is to make the robotic hand play the Jokenpo hand with my son.

The second goal is to control the hand using a PC GUI (guide user interface).

Extra Topic¶

The digital fabrication course helped me improve the university laboratory and made me create a new discipline for the control and automation course. It also helped me to discover the importance of the digital manufacturing theme