This document summarizes an undergraduate final year project presentation for a PCB CNC machine. A team of 4 electrical engineering students from the University of Engineering and Technology Lahore presented their project. They developed a low-cost, fast, precise and environmentally friendly CNC machine as a solution to issues with conventional PCB etching methods. The presentation covered the proposed system design, hardware setup, software interface, and progress made on the project. Future work includes adding web control capabilities and converting Gerber files to G-code for printing circuit boards.

1. Department of Electrical Engineering,
University of Engineering and Technology, Lahore
PCB CNC MACHINE
Group No: 2014-FYP-39
Project Advisor: Dr. Syed Abdul Rahman Kashif
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

2. Team Introduction
Muhammad Abdullah (Team Leader)
2014-EE-031
Specialization: Power
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018
Ramish Khalil
2014-EE-015
Specialization: Power
Muhammad Usama Naeem
2014-EE-023
Specialization: Power
Javed Mumtaz
2014-EE-026
Specialization: Power

3. Problem Statement
• Ferric Chloride (FeCl3) used in Conventional Etching
process is hazardous and kind of toxic waste.
• The etching process takes long time.
• Conventional method is expensive when Fabrication is
small scaled.
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

4. Proposed Solution
To counter this problem a model of PCB CNC machine is
developed that is:
• Low cost
• Fast
• Precise
• Environmental friendly.
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

5. Block Diagram
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

6. Flow Diagram
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

7. Applications
• Highly efficient, inexpensive & rapid PCB fabrication.
• Carving, Cutting & Drilling of various materials e.g.
wood, glass, metal etc.
• Manufacturing of complex parts like shafts and gears
which are used in different industries
• Electric Discharge Machines (EDM).
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

8. Audience
• Educational Purpose
• Industries
• Hotels and Restaurants
• Local Workshops
• Designers
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

9. What we have done so far?:
• Mechanical Structure
• Software + Graphical User Interface
• Manual Control
• Half Toning
• Animation via SolidWorks and LabVIEW SoftMotion
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

10. Hardware Setup
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

11. Control Box PCB Layout
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

12. Graphical User Interface
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

13. Half Tone Technique
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

14. SolidWorks with LabVIEW SoftMotion
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

15. FlatCAM Simulation
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

16. Graphical User Interface
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018
+12V Steps
Direction
Enable
Power Supply
Stepper Motor

17. Modes of Operation
• One Phase ON – Full Step
• Two Phase ON – Full Step
• One-Two Phase ON – Half Step
• Microstepping
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

18. Half Stepping
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018
1 2 3 4
8 7 6 5

19. Stepper Motor Connection

20. Specification
• Accuracy upto 8.5µm per step
• Workspace upto A4 size (8.27 × 11.69 inches)
• Weight upto 20kg
• Dimension h=18in ,w=12in ,b=14in

21. Future Deliverables
• Web based Control
• Image printing using Halftone Method
• Gerber to G-code Conversion inside LabView
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

22. Gantt Chart
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018

23. References
i. Overby, A. (2011). CNC machining hand-book. New York: McGraw-Hill.
ii. Development of interface and coordination for control module CNC PCB milling
machine – IEEE Conference Publication. [online] Available at:
http://ieeexplore.ieee.org/document/7432774.
iii. CNCCookbook: Be A Better CNC'er. (2018). HowToMakeCNCParts.html. [online]
Available at: https://www.cnccookbook.com/how-to-make-cnc-parts/ [Accessed 31 Mar.
2018].
iv. Udemy. (2018). CNC Programming with G Code for Beginners | Udemy. [online]
Available at: https://www.udemy.com/cnc-programming-for-beginners/ [Accessed 31
Mar. 2018].
Undergraduate Final Year Project Presentation
Dated: 4th , 5th April, 2018