ESim/C2/Laying-Tracks-on-PCB/English-timed
From Script | Spoken-Tutorial
| Time | Narration |
| 00:01 | Welcome to the spoken tutorial on “Laying Tracks on Printed Circuit Board”. |
| 00:07 | In this tutorial, we will learn to -
Place tracks on printed circuit board. Add dimension and text on Silkscreens. Generate Gerber files and view them. |
| 00:20 | This tutorial is recorded using -
Ubuntu Linux OS version 16.04 eSim version 1.1.2 |
| 00:31 | To practice this tutorial, you should know to:
Read a PCB netlist. Draw outline and setup design parameters for a board. Move and orient footprints. |
| 00:43 | If not, see the prerequisite eSim tutorials on this website. |
| 00:48 | I have already opened eSim on my machine. |
| 00:50 | Let us open example 7805VoltageRegulator. I have saved this on my Desktop. |
| 00:59 | I have already read the netlist, created an outline and set the design parameters. |
| 01:05 | Click on Open Project from the left toolbar. |
| 01:09 | And navigate to the location where you have saved this. |
| 01:13 | I will browse to Desktop. Click on 7805VoltageRegulator. |
| 01:19 | Click on the Open button at the bottom right corner of this window. |
| 01:24 | Click on Open Schematic button on the left toolbar, to open the schematic. |
| 01:30 | Using F1 I will zoom into the schematic. |
| 01:34 | Click on Tools button at the top toolbar, and select Layout Printed Circuit Board. Let me resize this window. |
| 01:45 | I have moved and oriented the footprints, such that there is minimum intersection between airwires. |
| 01:52 | Let us see how to convert the airwires into tracks. |
| 01:56 | Under the Layer tab on the right side of the Pcbnew window, click on B.Cu once. |
| 02:03 | Layer selected will be indicated by a blue arrow on the left side of B.Cu. |
| 02:09 | Click on Place button in the top toolbar, and select Track from the menu. |
| 02:15 | Let us place tracks for connecting the capacitor C2 to the output terminal J2.
I will zoom into the layout screen. |
| 02:24 | Click on node 1 of C2. |
| 02:28 | Let us drag this track from node 1 of C2 to node 1 of J2, by dragging the cursor till node 1 of J2. |
| 02:36 | Double-click on node 1 of J2 to complete the track. |
| 02:40 | Similarly connect all the other nodes except the Ground nodes. |
| 02:45 | Press Esc key to exit the Place Track tool. |
| 02:49 | Ground nodes are denoted by GND designation. |
| 02:54 | Let us place a ground plane to connect all the ground nodes. |
| 02:58 | Click on Add filled zones button located at the right side of the Pcbnew window. |
| 03:04 | Click once, slightly above the top-left corner of the board outline. |
| 03:09 | Let us place the ground plane on Bottom Copper layer. |
| 03:13 | To do so, click on B.Cu under Layer column. |
| 03:18 | Click on GND under Net column. |
| 03:22 | Click on OK button at the bottom right corner of the Copper Zone Properties window. |
| 03:28 | Drag the cursor with the pencil icon horizontally towards the right. |
| 03:34 | Click once, slightly above the top-right vertex of the outline. |
| 03:39 | Let us move this cursor vertically, towards the bottom-right vertex of the board. |
| 03:45 | Click once slightly below bottom-right vertex. |
| 03:49 | Similarly, we will draw a rectangular ground plane outline around board outline. |
| 03:56 | Please do not confuse board outline with ground plane outline. |
| 04:01 | I have completed the ground plane outline. |
| 04:04 | Note that the ground plane outline should lie outside the board outline. |
| 04:09 | Right-click inside the board outline. |
| 04:12 | Click on Fill or Refill all zones button from the menu. |
| 04:17 | We have added a ground plane to the board. |
| 04:20 | Press Esc key to exit the Add filled zones tool. |
| 04:25 | Let us now perform Design Rule Check i.e DRC, for the layout we created. |
| 04:32 | It checks whether the design created is compliant with the Design Rules set earlier. |
| 04:38 | Click on Perform Design Rules check present at the top of the Pcbnew toolbar. |
| 04:44 | Click on Start DRC. |
| 04:47 | This checks if any design element violates the design parameters set earlier. |
| 04:52 | If there are any design errors, they will be displayed in Error Messages window. |
| 04:58 | In my case, there are no errors. |
| 05:01 | Click OK button at the bottom right corner to exit the DRC Control window. |
| 05:07 | Now let us see how to add text on our board. |
| 05:11 | Let us click on F.Silks layer to place text on the Front Silk Layer. |
| 05:19 | Click on Place button from top toolbar and select Text option from the dropdown menu. |
| 05:27 | Click once on the Pcbnew window. |
| 05:31 | I will type 7805VoltageRegulator in the Text window. |
| 05:37 | Click on OK button at the bottom right corner of the Text Properties window. |
| 05:43 | The typed text will be tied to the cursor. |
| 05:47 | Drag cursor to bottom right corner of the layout screen and click once. |
| 05:53 | We can see the text is placed in light blue color. |
| 05:58 | Please make sure to click inside the board outline. |
| 06:02 | Now let us see how to add dimensions to our board design. |
| 06:07 | Click on Margin layer. |
| 06:10 | Click on Place at top toolbar and select Dimension option. |
| 06:16 | Click once on either vertex of the board layout. I have chosen the top-right vertex. |
| 06:23 | Let us drag the cursor towards the bottom right vertex in a straight line. |
| 06:30 | Press Enter key twice. The dimension will be placed for the vertical edge of the board. |
| 06:37 | We will perform similar steps for placing horizontal dimensions of the layout. |
| 06:43 | Let us press Ctrl and S keys together to save the work. |
| 06:49 | Let us now create gerber files for this board. |
| 06:53 | Click on Plot button at the top of the Pcbnew toolbar. |
| 06:58 | Click on the tab below Plot format. Select Gerber out of the 6 options. |
| 07:05 | Let us select the layers for which we want the gerber files. |
| 07:10 | I will select F.Cu, B.Cu, F.Silks and Edge.Cuts and Margin layers by clicking on the boxes to the left. |
| 07:24 | Click on Browse button at the top right of Plot window. |
| 07:29 | Let us navigate to the desired directory where we want to save the gerber files. |
| 07:35 | Click on Desktop, double-click on 7805VoltageRegulator. |
| 07:43 | Click on Open button at bottom right corner of Select Output Directory window. |
| 07:50 | Click on No button of Plot Output Directory window. |
| 07:57 | Click on Plot button located at the bottom of Plot window. |
| 08:02 | Acknowledgement messages will appear in the Messages window. |
| 08:06 | Let us generate the drill file in gerber format for our designed board. |
| 08:11 | Click on Generate Drill File at the bottom of the Plot window. |
| 08:16 | Click on Browse button at top right corner of Drill Files Generation window. |
| 08:23 | I will navigate to Desktop/7805VoltageRegulator. |
| 08:29 | Click on Open button at the bottom right corner of Drill Files Generation window. |
| 08:35 | If Plot Output Directory window appears, Click on No button in the middle of Plot Output Directory window. |
| 08:42 | Click on Gerber option placed in the middle of Drill Files Generation window if not selected. |
| 08:52 | Click on Drill File option present at the right side of Drill Files Generation window. |
| 08:58 | An acknowledgement message will appear in the Messages window. |
| 09:02 | Click on Close button in the middle of Drill Files Generation window. |
| 09:08 | Click on Close button at the bottom right corner of Plot window. |
| 09:13 | Let us save our work by pressing Ctrl and S keys simultaneously. |
| 09:19 | Now we will view the gerbers created. |
| 09:22 | Open the terminal by pressing Ctrl, Alt and T keys together. |
| 09:31 | Type gerbview and press Enter . |
| 09:35 | Click on File from the top left corner, and select Load Gerber File option. |
| 09:43 | Let us browse to directory where we have saved the gerber files. |
| 09:48 | I will click on Desktop, and then double-click on 7805VoltageRegulator. |
| 09:56 | Press Ctrl and A keys at the same time to select all the gerber files. |
| 10:02 | Click on Open button at the bottom right corner of the Open Gerber file window. |
| 10:08 | We can see the PCB Layout we created in Gerber format. |
| 10:13 | This is the FR4 grade copper cladded sheet on which we will transfer our design to. |
| 10:19 | After etching and drilling appropriate holes, this is how the board will look. |
| 10:24 | Components can now be mounted and soldered on this board. |
| 10:28 | This is how the board looks after components are soldered on it. |
| 10:32 | With this, we come to the end of this tutorial. Let us summarize. |
| 10:38 | In this tutorial, we learnt to :
Place tracks on printed circuit board. Add dimension and text on Silkscreens. Generate Gerber files and view them. |
| 10:51 | Please post your timed queries in this forum. |
| 10:54 | Please post your general queries on eSim in this forum. |
| 11:00 | FOSSEE team coordinates the Lab Migration project. |
| 11:06 | FOSSEE team coordinates the Circuit Simulation project. |
| 11:10 | Spoken Tutorial Project is funded by NMEICT, MHRD, Govt. of India.
For more details, visit this website. |
| 11:17 | This is Saurabh from IIT Bombay, signing off. Thank you. |
