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Re: Arc Adjustment proposal


On 07/11/2019 12:05 PM, Dino Ghilardi wrote:
My two cents...

Unfortunatly some times the centers are anchors of the board, other times they are not: when the external case is designed by a "fashon designer" and you have to put your electronics inside, the board outlines can be quite weird, not (totally) under our control and the centers of the board outline arcs are not always anchor points. The problem is that both the approaches make sense in some situations: sometimes you like an "exact" center, some others you like "exact" endpoints.

then your fashion design should use a proper CAD to design the board, and the EDGE should then imported inside KiCAD i.e. from a svg or a dxf file or handled directly with FreeCAD.

Personnally I ran into the "endpoint" problem for some board edges, since to close the perimeter of the board for a step export, the arc start/endpoint need to be exact, while having an exact arc center was not so important (considering also the resolution used in kicad and the mechanical tolerances of the real word, an error of some nm in the center position should not be a problem).

There is a Snap option in KiCAD to make an end of a segment snapping to a selected end point.
You can do this by holding the Alt key while moved an end point.

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