EagleCAD PCB
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| + | ==Getting the airwires to follow the shortest routes== | ||
| + | Press the 'Ratsnest' button | ||
| + | |||
==Resolving the last (few) airwires== | ==Resolving the last (few) airwires== | ||
Set "Catch factor" to 100% (default: 5%) | Set "Catch factor" to 100% (default: 5%) | ||
Options → Set → Misc → Catch factor | Options → Set → Misc → Catch factor | ||
| + | |||
| + | ==Doing a Polygon pour== | ||
| + | ===Step 1 - Layout your circuit=== | ||
| + | [[File:Eagle-Pour-Step1.png]] | ||
| + | ===Step 2 - Layout your PCB=== | ||
| + | [[File:Eagle-Pour-Step2.png]] | ||
| + | ===Step 3 - Route your PCB=== | ||
| + | [[File:Eagle-Pour-Step3.png]] | ||
| + | ===Step 4 - Get the 'Polygon' tool=== | ||
| + | [[File:Eagle-Pour-Step4.png]] | ||
| + | ===Step 5 - Make your polygon (ground plane in this case)=== | ||
| + | [[File:Eagle-Pour-Step5.png]] | ||
| + | ===Step 6 - Get the 'Info' tool=== | ||
| + | [[File:Eagle-Pour-Step6.png]] | ||
| + | ===Step 7 - Clock on the polygon=== | ||
| + | [[File:Eagle-Pour-Step7.png]] | ||
| + | * Set the isolation to a reasonable value, say 0.024 inches | ||
| + | * Uncheck 'Thermals' (this isolates each pad, but creates little traces in) | ||
| + | ===Step 8 - Ratsnest!=== | ||
| + | [[File:Eagle-Pour-Step8.png]] | ||
| + | ===Step 9 - Oh No=== | ||
| + | [[File:Eagle-Pour-Step9.png]] | ||
| + | * The ground plane has gone in, and is avoiding the traces... but its also avoiding the ground trace. | ||
| + | ===Step 10 - Get the 'Name' tool=== | ||
| + | [[File:Eagle-Pour-Step10.png]] | ||
| + | ===Step 11 - And check the name of the ground trace=== | ||
| + | [[File:Eagle-Pour-Step11.png]] | ||
| + | * You of course probably named this in your schematic, something sensible like 'GND' | ||
| + | ===Step 12 - Name the polygon the same as the desired trace / signal=== | ||
| + | [[File:Eagle-Pour-Step12.png]] | ||
| + | ===Step 13 - Hit 'Ratsnest' Again=== | ||
| + | [[File:Eagle-Pour-Step13.png]] | ||
Revision as of 21:04, 7 September 2012
Getting the airwires to follow the shortest routes
Press the 'Ratsnest' button
Resolving the last (few) airwires
Set "Catch factor" to 100% (default: 5%)
Options → Set → Misc → Catch factor
Doing a Polygon pour
Step 1 - Layout your circuit
Step 2 - Layout your PCB
Step 3 - Route your PCB
Step 4 - Get the 'Polygon' tool
Step 5 - Make your polygon (ground plane in this case)
Step 6 - Get the 'Info' tool
Step 7 - Clock on the polygon
- Set the isolation to a reasonable value, say 0.024 inches
- Uncheck 'Thermals' (this isolates each pad, but creates little traces in)
Step 8 - Ratsnest!
Step 9 - Oh No
- The ground plane has gone in, and is avoiding the traces... but its also avoiding the ground trace.
Step 10 - Get the 'Name' tool
Step 11 - And check the name of the ground trace
- You of course probably named this in your schematic, something sensible like 'GND'
Step 12 - Name the polygon the same as the desired trace / signal
Step 13 - Hit 'Ratsnest' Again
