Just a tip, when working with mixed parts, i start traces from the
pin, with snap to pin/pad on
and then have the miter take me back to the grid.
if connecting two parts off grid but with miters that work with the
gird, draw up to about the pin but just not all the way there this
will put
Am Donnerstag, den 29.01.2009, 13:25 + schrieb Dylan Smith:
>
> I wonder if PCB's internal representation using Imperial units has been a
> problem. I thought it might present issues with some newer SMD parts, like
> the 0.4mm pitch LQFP that I'm using in a project, but in reality, the
Intern
On Wed, 28 Jan 2009, DJ Delorie wrote:
> But given that some parts (like SOJ or DIP) are specified in terms of
> inch units, I think the whole concept of a "metric only library" is
> rather pointless. I think what the OP really wants is not what the OP
> asked for.
I wonder if PCB's internal repr
> Changing the internal units of PCB is not practical at this time. I
> think we calculated we'd need to maintain micrometer precision to
> preserve the old "high resolution" units. That means absolutely no
> more 16-bit coordinate values (oh, darn! ;) and we'd have to be a lot
> more careful ab
> I think result was that 1nm (nanometre) base-unit should work perfectly.
> (in my opinion larger units may work good, if rounding is smart.)
Er, right - nanometer, not micrometer. That limits board sizes to
about 2.1 meters if we want to avoid signed-unsigned problems with 32
bit integers.
_
Am Mittwoch, den 28.01.2009, 20:36 + schrieb Peter Clifton:
>
> Didn't we come to the view at some point, that using a sufficiently
> small metric unit internally would work fine?
>
> (Due to the definition of 1" = 2.54cm allowing us to precisely specify
> both metric and imperial units, give
> Didn't we come to the view at some point, that using a sufficiently
> small metric unit internally would work fine?
>
> (Due to the definition of 1" = 2.54cm allowing us to precisely specify
> both metric and imperial units, given a sufficiently small metric unit?)
Changing the internal units
On Wed, 2009-01-28 at 15:21 -0500, DJ Delorie wrote:
> > > Metric-only library. (it's imposibble, i know :))
> >
> > Not _im_possible.. so long as its a very very small metric unit which
> > gets used.
>
> It's not practical, either, unless you only have metric parts.
Didn't we come to the view
8 matches
Mail list logo
