IoT & Embedded Projects

Automatic PCB Etching Machine

•  Automatic PCB Etching machine

  
  
• Abstract

  The purpose of this project is to design a PCB etching machine. For this a Container which will contain the etching solution will be designed. The user will initially dip the PCB in etching material. After that the user has to enter the time interval using matrix KB for which the liquid is to be stirred. The µC will read the timing and start the stirring process with the help of DC motor. The DC motor will move the container in Forward and reverse direction so that the liquid is properly stirred. After the stipulated time ends the DC motor is stopped and the User can take out the Etched PCB. When delay time is over the buzzer will be turned ON.

  
  

• Project Overview

• Introduction

  Architecture

  Software Design

  Hardware Design

  Conclusion

  Customer support

  Introduction

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  A printed circuit board is incomplete without ‘Etching’. Etching is a ‘subtractive’ method used for production of printed circuit boards, by using solution of FeCl3 to remove unwanted copper from pre-fabricated laminate. But this process can be time and effort consuming. Hence this idea has been introduced to reduce the manual effort and give desired outputs.

  
  

  
  

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  Architecture

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  BLOCK DIAGRAM DISCRIPTION                                      
  

  • Microcontroller :– The microcontroller is the heart of the project as it drives the whole process by taking the inputs and producing output accordingly.
  • Keypad :– The keypad is the main input unit which is used to give the time delay to the microcontroller as desired by the user.
  • Power supply :-  The power supply is used run the circuitary.
  • LCD display :- It is used to display the time delay.
  • DC motor :- It is used to drive the etching model in back and forth motion.
  • Etching model :- The etching model is tray which contains the PCB etching solution in which the PCB will be immersed.
  • Buzzer :- When the time delay is finished the buzzer will be turned ON.

  
  

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  Software Design

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  Hardware Design

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  Conclusion

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  Design and hardware implementation of an automatic PCB etching machine is presented in this project which will etch the PCB perfectly.

  
  

  
  

  
  

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  Customer support

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