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DRC Error, Via Diameter 0.61mm != 0.61mm
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Jan Namedyński 4 years ago
I've just encountered a funny bug, on default DRC settings (via 0.61mm) every via on my PCB gets a DRC Error, somehow 0.61mm on the PCB is different then 0.61mm from DRC rule. Changing DRC rule to 0.609mm removes annoying errors (but doesn't solve the problem) ![image.png](//image.easyeda.com/pullimage/enRNFJj0ZvXjwN9oTae4zen1zFVl1uWg63N8TUpn.png)
Comments
andyfierman 4 years ago
This is due to the rounding error between mil (1000th inch) and mm. Set units back to mil then correct he Design Rules back to exact mil values then set units back to mm. I have posted elsewhere, a suggestion of how to fix this but it's a long way down the to do list... :)
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Jannki 4 years ago
no prob, I can live with that :) thx for quick reply!
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Deejayger 4 years ago
Please get rid of Imperial units to avoid inconveniences like this! Viva La Metric!
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andyfierman 4 years ago
@Deejayger, Unfortunately many device packages are in inch units such as 0.1, 0.05 so there is still a need for Imperial units. A better request might be for the base units in EasyEDA to be switched from Imperial to metric so that there are perhaps fewer instances of this type of DRC error. Better still, a robust algorithm to convert between the two but to then check against the Design Rules in both units and round up (or down, as required) to the appropriate Design Rule.
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Tilasolfa 4 years ago
@andyfierman oh dear, you made my day ! Thanks \o/ !
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