other:kicad_overview

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other:kicad_overview [2020/04/30 04:41] – [Part 2: Create a Schematic Symbol] formlabother:kicad_overview [2020/09/06 09:38] – formlab
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     * ''tools > assign footprints''. A 3 columns window pops up. On the left are the different footprint libraries. On the right, the contents of all library collections. In the middle a list of all the components.     * ''tools > assign footprints''. A 3 columns window pops up. On the left are the different footprint libraries. On the right, the contents of all library collections. In the middle a list of all the components.
     * click on the first component. Use the filter options at the top to narrow down the footprints in the right column. Take your time here. Make sure you'll select the right footprint for the symbol.     * click on the first component. Use the filter options at the top to narrow down the footprints in the right column. Take your time here. Make sure you'll select the right footprint for the symbol.
-      * ''TFT'': through hole technology+      * ''THT'': through hole technology
       * ''SMD'': Surface mount technology       * ''SMD'': Surface mount technology
       * ''Radial'': two leads coming from one side of the component (ie: a regular electrolytic capacitor)       * ''Radial'': two leads coming from one side of the component (ie: a regular electrolytic capacitor)
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     * Minimum 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:   * ''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   * click OK
 +  * Read manufacturers specifications and panelization pages carefully.
  
 **Part layout** **Part layout**
   * move your parts to the locations you'd like them to be. Hover your mouse over a part and press ''m''.   * 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).   * 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.
  • other/kicad_overview.txt
  • Last modified: 2020/09/11 04:55
  • by formlab