Allegro breaks everything down by layer. I can create padstacks with any given layer count and do something unique on top, internal, and bottom layers with regards to copper, mask, and paste (not internal). Per layer I can set zone connection type (solid, thermals, etc.), zone spoke width, etc. There are a lot of options. There are also two 'meta layers' of external and internal which works regardless of layer count so padstacks are more portable.
https://www.ti.com/lit/ml/mpbgak2/mpbgak2.pdf?ts=1592002537447&ref_url=https%253A%252F%252Fwww.google.com%252F is an example of a footprint where the paste shape is recommended to be different than the copper and mask shape. I would find it nice if there were somehow padstack variations, like the ability to make a masked, and tented, and mask filled, and conductive plugged version of a padstack. That would make padstack maintenance easier since all of those variations are useful in different circumstances but it avoids having to create separate padstacks of each flavor. Maybe a 'base' padstack could be extended with some simple options to present multiple variations to the user, both when selecting a padstack in the Footprint Editor and when doing a padstack replacement within Pcbnew? Allegro also generates padstacks as separate files, which are instantiated into a footprint (and then into the board) as many times as needed. On Thu, Jun 11, 2020 at 9:48 AM Seth Hillbrand <s...@kipro-pcb.com> wrote: > On 2020-06-11 08:35, Jeff Young wrote: > > > > On 11 Jun 2020, at 16:16, Wayne Stambaugh <stambau...@gmail.com> wrote: > > If not, we > need to create one to make sure we have it well defined before any > implementation can be done. > > > Just to be clear: I'm not looking at implementing it. But I'd need to > know what direction we were moving in *if* I were to implement a WYSIWYG > custom pad editor. > > If we're going to allow a shape per layer, then it pretty much needs to be > a repurposed PCB_BASE_FRAME. If we're going to do something like Altium > then we probably just want a canvas with shape tools and the point editor. > > > Hi Jeff- > > I think I'd vote for us doing something like Altium and allow the shape to > be assigned to one or multiple layers (outside of the shape editor). In > that sense, I think we can use just the canvas with tools/editor. Once the > shape is defined in this editor, we could allow it to be named and used in > multiple padstacks and multiple layers. This makes a clearer mapping to > the various file formats that do implement padstacks. > > -Seth > Seth Hillbrand > KiCad Services Corporation > https://www.kipro-pcb.com > +1 530 302 5483 | +1 212 603 9372 > > > _______________________________________________ > Mailing list: https://launchpad.net/~kicad-developers > Post to : kicad-developers@lists.launchpad.net > Unsubscribe : https://launchpad.net/~kicad-developers > More help : https://help.launchpad.net/ListHelp >
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