Certain Gerber import/export tools our PCB manufacturers use result in very large number of errors if very low minimum error size is used, so I need to correlate this somehow with PCB manufacturing tolerances to assess it does not pose a risk.
Maybe you could illustrate on the examples below, one less and one more obvious. Minimum error size is set to 0.0025mm on first, and 0.025mm on the second one.
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S
Simon Garrisonposted
about 2 hours ago
Admin
When FAB3000 performs the design comparison, the last feature it checks for are micro-slivers (such as in your screen capture).
Micro-slivers occur when design areas are 'essentially identical' - but due to mathematical rounding (especially on curves) a small sliver may occur. FAB 3000 measures the overall width and height of each micro-sliver and submits an error if either the width or height exceeds the minimum error size.
Note: When viewing your screen capture it appears the micro-sliver height exceeds the minimum error size " - and thus FAB 3000 highlights as an error.
We'll add an option to ignore micro-slivers, and I believe that should resolve any "false errors" that you're receiving.
Certain Gerber import/export tools our PCB manufacturers use result in very large number of errors if very low minimum error size is used, so I need to correlate this somehow with PCB manufacturing tolerances to assess it does not pose a risk.
Maybe you could illustrate on the examples below, one less and one more obvious. Minimum error size is set to 0.0025mm on first, and 0.025mm on the second one.
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1 Comments
Simon Garrison posted about 2 hours ago Admin
When FAB3000 performs the design comparison, the last feature it checks for are micro-slivers (such as in your screen capture).
Micro-slivers occur when design areas are 'essentially identical' - but due to mathematical rounding (especially on curves) a small sliver may occur. FAB 3000 measures the overall width and height of each micro-sliver and submits an error if either the width or height exceeds the minimum error size.
Note: When viewing your screen capture it appears the micro-sliver height exceeds the minimum error size " - and thus FAB 3000 highlights as an error.
We'll add an option to ignore micro-slivers, and I believe that should resolve any "false errors" that you're receiving.
Thanks again.
Simon
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