kicad-developers team mailing list archive

[Tomasz Wlostowski <tomasz.wlostowski@xxxxxxx>]

On 03.03.2015 18:53, Nick Østergaard wrote:
> 2015-03-03 18:46 GMT+01:00 Nick Østergaard <oe.nick@xxxxxxxxx>:
>> 2015-03-03 18:28 GMT+01:00 Tomasz Wlostowski <tomasz.wlostowski@xxxxxxx>:
>>> On 03.03.2015 18:12, Nick Østergaard wrote:
>>>> I think I found a bug.
>>>>
>>>> I made a test project with two connectors, named the nets like a+ and
>>>> a-.  Then I use the Route menu -> Differential Pair, start at one of
>>>> my pairs, that is directly south of the original pads... I expected it
>>>> to connect, but it does not. I needed to make a "kink" or cornor to
>>>> make it connect to the other end of the ratsnest.

Hi Nick,

The pads of the top/bottom connector on your PCB don't have the same X
coordinates (for the top connector X = 148,5011 mm, for the bottom
connector X = 148,5 mm). The DP placement algorithm can't place the
"kinks" between pairs of unaligned pads automatically. IMHO it can be
seen both as an advantage (ensuring that the DPs are perfectly
symmetric) or as an annoyance (because you have to add the corner which
breaks the symmetry by hand).

I'm open to improving it in the future.

Cheers,
Tom


>>>
>>> Hi Nick,
>>>
>>> Could you send me the PCB where the problem occurs?
>>>
>>> Cheers,
>>> Tom
>>
>> Sure, no problem. see attached.
> 
> Even if I shift the bottom connector to the right, it won't connect
> directly. It seems like it wants some track segments to be "placed"
> before it can end a connection.
>