1. Computer Controntrolled Cutting


2. Electronic Production


3. 3D Printing and Scaning


4. Embedded Programming


5. Computer_Controntrolled_Machining


6. Electronic Design


7. Output Devices


8. Machine Making


9. Input Devices


10. Molding and Casting


11. Networking


12. Application and Interface

Electronics Production - Group Assignment

Assignments

• Characterize the design rules for your in-house PCB production process: document feeds, speeds, plunge rate, depth of cut (traces and outline) and tooling.
• Document the workflow for sending a PCB to a boardhouse
• Document your work to the group work page and reflect on your individual page what you learned

The Monofab SRM-20 Milling Machine

• The Monofab SRM-20 is a desktop milling machine manufactured by Roland DG
• It is used froe precise milling
• It is known for its accuracy and size
• It's well known for small projects or educational purposes(like learning how to make circuit boards) as mass production is not recommended with its size 👍

To learn more about the machine, click here

Machine Specifications

These are the specifications of the machine here.(for more info, access the page

                Cuttable Material: Modelling Wax, Chemical Wood, Foam, Acrylic, Poly acetate, ABS, PC board
                
                X, Y, and Z Operation Strokes: 203.2 (X) x 152.4 (Y) x 60.5 (Z) mm
                
                Distance From Collet Tip to Table : Max, 130.75mm (5.15 in)
                
                Loadable Workpiece Weight : 2 kg (4.4 lb)
                
                X-, Y-, and Z-Axis Drive System : Stepping motor
                
                Operating Speed : 6 - 1800mm/min 0., - 70.87inch/min
                
                Software Resolution : 0.01 mm/step (RML-1), 0.001mm/step (NC code), 0.000039 inches/step (RML-1), 0.000039 inches/step (NC code)
                
                Mechanical Resolution : 0.000998594 mm/step, 0.0000393 inches/step
                
                Spindle Motor : DC motor Type 380
                
                Cutting Tool Chuck : Collet method
                
                Included Items : USB cable, AC adapter, Power cable, Cutting tool, Collet, Set screw, Spanners (7,10mm), Hexagonal wrench (size 2,3 mm), Positioning pins, Double-sided tape, Start-up page guidance card
            

Characterizing Design Rules

Generating toolpath

You can access mods here

Summary of how to use

• Open mods and than right click. Select **Programs-Open Program-Roland-mill 2D Pcb
• This should have appered after the previous steps. Import the schematic layout you made from inkscape.
• Invert the design you imported
• Change the orgins to 0.
• Delate a few unecessary mods
• Right click again. Select Modules-Add modules-File-Save
• Connect the new mod with the old one, and lastly click on calulate to get your circuit cutout.

Pcb stands for Printed Circuit Board The Monofab SRM-20 is designed for creating precise, small-scale prototypes, including PCBs. It has a high-precision spindle which is capable of milling various materials like copper-clad boards (for PCBs), plastics, and soft metals as well.

Common uses include PCB are usually engraving, and creating mechanical parts.

Safety Measurements

1- Machine Operation:

Read the Manual

• Know the rules and instructions for the pcb machine before statrting to blindly exlore. Make sure you know and follow the rules int he manulal
• Follow Manufacturer Instructions in the manual as well Emergency Stop
• Know when it is needed to stop the printing process like when it looks like the wrong design is printing, or it looks like it will burn.

2- Personal Protective Equipment (PPE):

• Wear Safety equipments like safey Glasses,Gloves,Lab Coat/Protective Clothing,and Respiratory Protection

3- Chemical Handling:

• Proper Ventilation,Store Chemicals Safely and Use Appropriate Containers whi.le printing the design or soldering, as it can effect your health

How to use the pcb machine

Before anything, it's important to make sure have your circuits design form mods downloaded. For me, since I used a different laptop to make my kicad design(for the pcb) I dwnloaded my file from the laptop i'm using and send it to my email, so the steps start from there

For a basic summary of the steps to getting the mod svg file, it starts Wwhen making the KiCad Schematic Layout amd the pcb design the exporting it.Then we take the exported file to inkscape, than calculate the vector cut in mods.

For more details, visit my week 6 Electronics Production documentation here

Step-1

• I accesed my email and downloaded the svg file for the printing process

Step-2

• The app we will be using to cut our design is called VPanel

• First of all, we need to change the placement of our surface with the settings of the app. Then we have to change the y and x axis to 0 from the settings.

• While doing this with the z axis, we have to change the settings than adjust the mill with the screw, and then we can move on to the next step

Step-3

• To transfer the rml file of your design, firstly we have to click on the cut icon



• Then these settings will appear. When they do, click on delate all to delate the old design file



• Afterwards, click on the add icon to add the new design you want to print



• Click on the output icon to start the printing



• After the printings done, remember to vaccum it!

And thats pretty much how you use the pcb machine.