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Ratlines showing unconnected routes when in fact they are

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SniperSix 7 years ago

**BUG** Concise problem statement: On some occasions, especially after replacing components, the ratlines will show up as if the pads or the nets were not properly connected. I need to save, close the pcb and reopen and the ratlines are gone. Steps to reproduce bug: 1. Place a component to a PCB and connect the pads to the circuit. Place a new component over top and give the pads the same net names as the underneath component. 2. Delete the underlaying component and sometimes, ratlines will appear. 3. I need to save my PCB and close it. When I reopen, the ratlines are gone. Expected results: Ratlines should be present only when pads are not properly connected to their respective nets. Browser: IE11

Comments

SniperSix 7 years ago

Actually, sometimes the same problem also occurs when renaming a component with one that previously had the same name.

ProblemSolver 7 years ago

I always like to manually clean up the laid tracks after the router has finished, and have noticed the ratlines appear for the same pads that I have just manually rewired. I cannot get rid of the ratlines once they appear.

andyfierman 7 years ago

What happens if you save, close and reopen the layout?

mijnmodelbaan 7 years ago

Same problem here: yesterday I created schematics, created PCB, solved all errors. Changed schematics today, updated PCB, did a bit of re-wiring as there were some errors. After all the errors were gone, there still was one ratline showing. After closing the PCB and re-opening it the ratline was gone.

boxxofrobots 7 years ago

I have noticed when editing you have to be very careful of net names. If you add a pair of feedthroughs and a new trace to reroute an existing trace, the new traces don't always pick up the same net names, they end up with generic net names. This will show a ratline between the two pins as well as yellow xs on the feedthroughs where they connect to the alien nets. I find if I click on each element and make sure to relabel them all part of the same net, this usually gets fixed.

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