1. Week 1 : Project Management
  2. Week 2 : Computer-aided
  3. Week 3 : Computer Controlled Cutting
  4. Week 4 : Embedded Programming
  5. Week 5 :3D Scanning and Printing
  6. Week 6 : Electronic Design
  7. Week 7 : Computer Controlled Machining
  8. Week 8 : Electronics Production
  9. Week 9 : Input Devices
  10. Week 10 : Output Devices
  11. Week 11 : Networking and Communication
  12. Week 12 : Mechanical Design and Machine Design
  13. Week 13 : Midterm Review
  14. Week 14 : Molding and Casting
  15. Week 15 : Interface and Application Programming
  16. Week 16 : System Integeration
  17. Week 17 : Wildcard Week
  18. Week 18 : Applications and Implications, Project Development
  19. Week 19 : Invention, Intellectual property and Income

Week 8: Electronic Production

This week describes my understanding of how to use Input Devices. It also includes how to generate an analog output (PWM) using pin 9, how to use an oscilloscope and multimeter for analysis, and how to integrate different sesnor with the microcontroller.

Objectives of the Week

  • Linked to the Group Assignment
  • Document how you done the Tool Path
  • Document how you made (milled,suffed,soldered) the Board
  • Document that your board is functional
  • Explain any problems and how you fixed them
  • Upload your Source Code
  • Include a Hero Shot

    • Group Assignment Contribution

    For More about Group Assignment

    As part of this week's group assignment, I contributed by defining the design rules tailored for our in-house PCB fabrication process.

    Overview of Wegstr CNC Machines

    CNC (Computer Numerical Control) machines have significantly transformed how we approach manufacturing and prototyping by offering high precision and repeatability. Among the trusted names in this domain is Wegstr, a Czech-based company recognized for its compact and user-friendly CNC milling machines. In this section, I’ll be sharing insights into the core features, available models, and use cases of Wegstr CNC machines, and why they’re a reliable choice for educational and small-scale manufacturing setups.

    Wegster CNC Wegster CNC

    Go to Wegster Website

    Main Features of Wegstr CNC Machines

    Wegstr machines come equipped with multiple features that make them efficient and easy to use. The table below outlines the main technical specifications that set them apart from other desktop CNC machines:


    Feature CNC Wegstr LIGHT CNC Wegstr DARK
    Spindle Speed 11,000 RPM 11,000 RPM
    Working Area 140 x 200 mm 140 x 200 mm
    Total Power Input 30 W 30 W
    Rated Input Power of Spindle 25 W 25 W
    Maximal Height Under Spindle 40 mm 40 mm
    Axis Speed (X, Y, Z) 170 mm/min 170 mm/min
    Tool Holding Diameter 3.175 mm 3.175 mm
    Software Compatibility Windows, Mac, Linux Windows, Mac, Linux
    Price €3,190 €3,190

    These features make Wegstr CNC machines suitable for a wide range of applications, from PCB milling to intricate designs in various materials.

    Types of Wegstr CNC Machines

    Wegstr offers different types of CNC machines tailored to specific needs and applications. Below is a comparison table of the various types available:


    Type Description Ideal For
    CNC Wegstr LIGHT A versatile machine for light materials. Hobbyists and small workshops.
    CNC Wegstr DARK Designed for heavier materials and industrial use. Professional and industrial applications.
    CNC Milling Machine General-purpose milling machine. Various milling tasks.
    CNC PCB Milling Machine Specialized for PCB fabrication. Electronics and PCB prototyping.

    Each type of machine is designed to cater to different user requirements, ensuring that there is a suitable option for everyone, from hobbyists to professionals.

    Applications of Wegstr CNC Machines

    Wegstr CNC machines are widely used across various industries due to their versatility and precision. They are particularly popular in:
    – Electronics: For milling PCBs and creating intricate electronic components.
    – Woodworking: Ideal for crafting detailed wooden designs and furniture.
    – Metalworking: Capable of milling metals for parts in machinery and automotive applications.
    – Prototyping: Used in R&D for rapid prototyping of new designs.

    Individual Assignment

    As we have done form the PCB Design 2 weeks back we are gonna bring that back in KiCAD

    Schematic

    This is the Schematic Diagram. We have done in the last week what was the actual concept is to glow up the Light from one by one like a Circular thing. What I have done is like giving the connection to the D4 pin and then Individually blinking with Time delays

    Now What we are gonna do this change to the PCB Production mode and then Import the Module

    PCB view

    In the Previous week, we have done this Assembling all the things what we are gonna do is Just make some adjustments to Get this into Real World

    Step 1

    In our Machine there will be a Track width Constraint. So what we need to do is to change the track width to 0.6mm

    identify changes

    Step 2

    So next we will change the Xiao - Seeed studio ESP32C3 pad size from X : 3mm to Y : 1.5mm. This will help us to place the Xiao Board accurate

    Pad size change

    Step 3

    And we have to check traces and It should not be connected like this

    cautious

    Step 4

    Next we are gonna change the page to the actual bed size of our machine to print it accurately. Our bed size is within 100*100 mm. So we are gonna setup to that

    Options



    Step 5

    Then fit the PCB inside like the below image



    Step 6

    Then we move to File -> Plot



    Step 7

    Next in the Plot Window, We have to select what are the layers that we are gonna print here we print F.Cu layer so we select that alone and then select the desired Output Directory and then Make sure to check the Negative Plot then only It will be easy for us to print the file in Wegster anthen output mode s black and white then select plot and then in output messages shown will be the directory and File name





    This is the what we got as a Output



    MODS CE Overview

    MODS CE is a powerful web-based platform designed for controlling and interfacing with digital fabrication machines. It provides a modular interface for creating custom workflows that can be tailored to specific machines and processes.

    With MODS CE, users can configure toolpaths, simulate processes, and manage machine settings all within a single, cohesive environment. It is particularly well-suited for educational settings and maker spaces, thanks to its flexibility and ease of use.

    Advantages of MODS CE

    • User-Friendly Interface: MODS CE offers an intuitive graphical interface that simplifies the process of machine configuration and control.
    • Modular Design: The platform's modularity allows users to create custom workflows and adapt the system to a wide range of machines and tasks.
    • Web-Based Access: Being web-based, MODS CE can be accessed from any device with a web browser, making it convenient and versatile.
    • Educational Tool: It serves as an excellent educational resource, supporting hands-on learning and experimentation with digital fabrication technologies.
    • Open Source: As an open-source platform, MODS CE encourages community contributions and continuous improvement.

    Then let’s move on to MoDSCE initally while get into this Interface I have reloaded my website that as it doesn't showed up anything

    Then only read the Instructions to right click into get into options

    Tip: Before sending to a manufacturer, use a Gerber Viewer to check your files.

    Reference Link

    Navigate here

    1. Group Assignment
    2. PCB Toolpath
      1. Adjustments