Differences

This shows you the differences between two versions of the page.

--- other:kicad_overview [2020/04/30 04:41] – [Part 2: Create a Schematic Symbol] formlab
+++ other:kicad_overview [2020/04/30 06:01] – [Part 2: Create a Schematic Symbol] formlab
@@ Line 76: / Line 76: @@
     * Solder mask: ''16mil'' (0.4mm)
   * ''File > Board Setup > Design Rules''
-    * Min track width: ''10 mil''
+    * Minimum track width: ''10 mil''
-    * Min via diameter: ''32 mil'' (total width of the drill hole including both sides of the annular ring)
+    * Minimum via diameter: ''32 mil'' (total width of the drill hole including both sides of the annular ring)
-    * Min via: ''15 mil'' (The drill diameter)
+    * Minimum via: ''15 mil'' (The drill diameter)
   * ''File > Board Setup > Design Rules > Net Classes''. In the default net-class, change the following values:
-    * Clearance: ''10 mils''
+    * Default class (for signal traces)
-    * Track Width: ''10 mils''
+      * Clearance: ''10 mils''
-    * Via size: ''32 mils''
+      * Track Width: ''10 mils''
-    * Via Drill: ''15 mils''
+      * dPair Width: ''10 mils''
+      * dPair gap: ''9,8 mils''
+      * Via size: ''32 mils''
+      * Via Drill: ''15 mils''
+    * Power class (for power and GND traces)
+      * Clearance: ''12 mils''
+      * Track Width: ''30 mils''
+      * dPair Width: ''30 mils''
+      * dPair gap: ''19,8 mils''
   * click OK
+  * Read manufacturers specifications and panelization pages carefully.
 **Part layout**
   * move your parts to the locations you'd like them to be. Hover your mouse over a part and press ''m''.
   * Try to make the air-wire structure as simple as possible. (At least as possible crossovers).
+  * Using the 'route tracks' icon, change the air-wires into actual traces. It's best to do this manually.
+    * choose the layer (F.cu = front copper, B.cu = back copper)
+    * Use ''d'' on elements of the traces to move them around
+  * Keep space for fingers in mind when using connectors
+  * keep conductive things underneath the PCB in mind (for example: programming pins or the USB connector on a microcontroller). Make sure you don't get unwanted connections
+  * When layout is finalised perform a design rule check: ''Inspect > Design Rules Checker''
+  * Arrange the silkscreen elements to give info when the PCB is made.