Electronic library - Package not displayed correct

[bastian.jaeger]

Fusion 360 - 2.0.8816 (Windows 10 (18363))

Working with Electronics design and libraries:

I import a jumper as "device" to my library. The automaticlly created package looks like this:

So I guess it is empty??? Or not??? can I modify Scetches namely "pad" or "text" ... of course not! (This already confuses me. But lets keep going).

So I hope things will work out. I save the lib, create a new schematic and board. THis is how my jumpers looks like in board design:

This is great. Exactly as I expect it and now it from Eagle. But now I switch to the 3d Design and see this:

Can anyone explain...

1. Why this looks like this?

2. Where can I see this referenced in the "package" design?

3. How can I solve this, so that I see something like I see it in the 2d board design in

    a. the "package" design and

    b. as a result (because I am kind of a fan of causality) also in the 3d layout?

[ritste20]

Is the plan to solder a jumper between the 2 pads or have "2" connected pads that you could solder 2 discreet components to in order to connect like a breadboard?

The answer will have different implementations. If it is 2 connected pads, then your footprint will require a custom pad shape drawn with a polygon in the footprint editor.

If your intent is a jumper soldered between the 2 pads like a 0ohm resistor then you can draw two standard pads and place the package in the package editor.

Regards,

[bastian.jaeger]

Hi @ritste20 ,

thanks for the quick response, but this is not the issue. The jumper from a schematics view and from the footprint perspective look good and work. I have used this for creating multiple PCBs so far.

The issues are that

- the "package" view does not show anything. It is white on white and nothing more

- the 3D representation does not look like the footprint. The footprint is 2 rectangles and a lint connecting them and the 3D thing is ... different.

[ritste20]

The footprint may look correct but can you explain how you drew the line connecting the two rectangles? In the footprint editor, each pad must have a unique identifier (name) and connecting the two is not as simple as drawing a line between them.

I suspect that when you switch to the 3D PCB environment, it is constructing one pad and connecting the line to it as part of the copper pour but the second pad is violating an ERC rule and not allowing Fusion to render them as a single object because it is part of a separate net. i.e. they are not a continuous circuit.

[bastian.jaeger]

Ok. No I understand your though. And you are right! Thanks. This solves the riddle!

Yes. The Jumper consisted of two pads and a line in the top layer connecting them.
I removed the line and replaced it with another pad and it looks good now.

Thanks!

[bastian.jaeger]

But... still one part is unclear:

Why is the package design (first image in my original post) "empty" or white on white?

[ritste20]

The pad and text sketches in your package are created from the footprint that the package is attached to. In your original post, you said that you imported the jumper. Can you give me a link to where you found the part to import? Was it from another library?

It would help me to see what the package is supposed to look like but there is a good chance if you downloaded it from a website like SnapEDA or UltraLibrarian then the package may not actually have any 3D geometry associated with it.

I'm glad you got the pads straightened out so progress has been made.

Regards,

[bastian.jaeger]

Hi @ritste20 ,

the jumper is from the SparkFun-Jumpers library - e.g. device JUMPER-SMT_2_NC_TRACE_NO-SILK (JUMPER-SMT_2_NC_TRACE).

I odd thing that bothers me is, that usually I see the pad outlines in the 3d package. But I see nothing or only a dashed line. If this would be a package where I would put some 3d body in (not this plain jumper), then I would have issues to find the propper orientation of the body with respect to the footprint pads (which is can not see).