Electronics Production
Assignments of the Week
- 1.Characterize the design rules for your in-house PCB production process: document feeds, speeds, plunge rate, depth of cut (traces and outline) and tooling.
- 2.Document your work to the group work page and reflect on your individual page what you learned.
Group assignment:
Group Assignment:
"PCB fabrication."
1."Import the PCB design you created into the mods."
a."Import the file first."
![Description of image](../images/08/17.jpg)
![Description of image](../images/08/18.jpg)
![Description of image](../images/08/19.jpg)
![Description of image](../images/08/20.jpg)
b."Adjust the engraving values (or modify the cutting values)."
![Description of image](../images/08/21.jpg)
![Description of image](../images/08/23.jpg)
c."Export the file."
![Description of image](../images/08/22.jpg)
2."Stick the copper board onto the CNC platform."
a."Use double-sided tape to stick it on (make sure to distribute it evenly on the back of the copper board)."
![Description of image](../images/08/37.jpg)
3."Change the drill (0.4mm)."
![Description of image](../images/08/32.jpg)
a."Be sure to control the handle of the tool with your fingers to prevent it from falling off and breaking until the screw is tightened."
![Description of image](../images/08/35.jpg)
4."Turn on the motor, adjust XYZ, determine the origin in the machine, and zero XY."
![Description of image](../images/08/36.jpg)
![Description of image](../images/08/31.jpg)
a."When the tool head approaches the copper board, manually adjust the tool head downwards."
![Description of image](../images/08/29.jpg)
b."Tighten the tool head with a wrench. (Zero Z)"
![Description of image](../images/08/25.jpg)
5."Import the engraving G-code, first press cycle start, turn on the power to the tool head, then press cycle start again."
![Description of image](../images/08/24.jpg)
![Description of image](../images/08/28.jpg)
![Description of image](../images/08/30.jpg)
![Description of image](../images/08/28.jpg)
a."If the tool head does not cut close to the copper board, press stop, close the G-code, and re-zero the Z-axis. Repeat the previous step."
6."After the engraving is completed, turn off the power to the tool head, change to a 0.8mm tool head, and repeat the previous steps."
![Description of image](../images/08/34.jpg)
a."When removing the tool head, also be sure to control the handle of the tool with your fingers to prevent it from falling off and breaking until the screw is tightened."
![Description of image](../images/08/35.jpg)
b. "Tighten the tool head with a tool."
![Description of image](../images/08/25.jpg)
7. Below is the PCB cut by the machine, which belongs to me.
![Description of image](../images/08/27.jpg)
Individual assignments:
1.Make and test the development board that you designed to interact and communicate with an embedded microcontroller
Soldering Microcontrollers
required parts
pinhead smd: 2*3P/x3 1*4P/x1 1*7P/x1, xiao development board x1, SMD switch/x1, LED/x1, Resistor: 1K/x1 0K/x1
![Description of image](../images/08/15.jpg)
welding
1. Stick a little solder paste on the copper board. (The solder will choose the more viscous one of the copper plate and the welding torch to absorb)
![Description of image](../images/08/4.jpg)
2. Heat up the soldering iron and clean the tip.
![Description of image](../images/08/10.jpg)
![Description of image](../images/08/9.jpg)
![Description of image](../images/08/14.jpg)
3. Turn the temperature to 350 degrees, and add a little solder on it at the same time,
![Description of image](../images/08/5.jpg)
![Description of image](../images/08/11.jpg)
3. Touch the solder tip lightly to the copper plate, it will automatically solder
![Description of image](../images/08/12.jpg)
![Description of image](../images/08/16.jpg)
4.I accidentally damaged my first PCB through soldering, so I proceeded to cut a new PCB.
![Description of image](../images/08/27.jpg)
5. I connected a screen to the PCB and displayed my name to demonstrate that the PCB is functioning correctly.
![Description of image](../images/08/8.jpg)
Downlod Links
OLED screen codeExisting problems
1. I desoldered my PCB incorrectry so I broke board.
![Description of image](../images/08/1.jpg)
second edition
1. Correct use: tin strip, tin suction device, heat gun.
![Description of image](../images/08/7.jpg)
![Description of image](../images/08/6.jpg)
![Description of image](../images/08/3.jpg)