John Griessen wrote:
Dan McMahill wrote:
Does this need to be a feature?
I'm not an expert in PCB layout tools but it seems worthy
I think it is important but I'm not sure when I'll have time. I
wonder if maybe just a "nopaste" flag for pins/pads is enough.
If we could show it as a layer and add a rectangle, I think it would
be less error prone. Checking for such rare things as an added
rectangle on soldermask or paste could be like: show only
solderpaste layer, select all, see count.
Having the paste patterns shown explicitly and having a way to
explicitly create a paste pattern would be the general way to do it.
Same thing for the solder mask. There have been lots of times where I
just wanted a rectangle cleared of solder resist. that is not tied to a
part.
PCB really should be able to cleanly deal with layers that are not copper.
Joe T
As far as one side only fiducial workarounds, how about these:
Make opposed, offset L lines in a copper layer so their edges are on
intersecting X and Y axes. Etching results might make the edges eaten
back from a perfect line through them all, but you could still use
them as fiducials by aiming for the middle of the gap. This
approximates a fiducial of alternating squares of black and clear.
Another is a zero length line to get a circle of copper layer. Same
as a zero diameter via, but on one side only.
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