Problem finding adequate footprint (SOLVED)

Hello! I am a brand new user of KiCad, my first time designing a PCB and using this software, followed some quick tutorials on youtube and here am I.
I’ve found most footprints I was looking for when assigning the footprints to the symbols I wanted on my board but I can’t seem to find a footprint for the Jumper_3_Open symbol, do I have to design this footprint myself, or is it just hiding really really well from me? I have googled it but I can’t seem to find anything. Thanks for the help in advance! :slight_smile:

I design almost all of my own footprints. It is not difficult. True; I often start with one from the standard KiCad library but that only save a bit of time and steps.

Since it is my first time I was planning to stay away from designing my own footprints, but if it is not difficult I might give it a shot, all I need is 3 holes arranged in a straight line, it can’t be too hard

That is the spirit!! :smiley: I think you should go for it. You get a significant amount of freedom and flexibility by designing your own footprints.

For example, (I have posted similar previously) I like to make fat corner pads for easier hand soldering of small SMT ICs: It really makes assembly easier:

I usually use some (connector) pinheader pins. Here are some 2.54 mm ones. They are available in other pitches too.

pinheader

There are also solder jumper pads if you want those.

Europeans refer to the (football or soccer) field as the “pitch”. Americans refer to “pitch” as the throw of he baseball by the pitcher. Which way are you using the word? Or maybe he wants an F sharp instead of a B flat? :slight_smile:

Hi there is this what you mean? as this is what I use


:mouse:

I was looking for one of these, but with 3 holes

imagem_2023-05-14_200135400

I already showed you one but with the 3D model in place.

I thought about using the connector piece, but maybe my professor will see it as a “messy resolution”.this is a college project, but I think I’ll use it anyways, thanks for the tip!

Pitch is one of those words with many meanings. It can also mean tar, the slope of a roof, to set up a tent, to make a proposal, and others a dictionary will list.

Here pitch is used in the engineering sense. It probably comes from screw pitch, the distance between corresponding points in an object with regularly spaced features.

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It’s called a connector but really it’s just a row of pins and not all of them have to be connected.

Yes of course I was teasing. But seriously; in response to @Burgo, I think you may want a manual A-B selector. Those parts will commonly use 0.1 inch centers (pitch) and are referred to as a "shunt. " That word may be useful in looking for symbols or footprints. But I think that most commonly you will find two pins only rather than three.

Sometimes it is too difficult to predict which way something will work, so I will lay out a board so that I can try either. Specifically I am thinking of a rotary encoder; and I was uncertain of the phasing.

What I did for that was laid out four 0805 pads thus:


so that I could place 0 ohm chips in either X or Y direction.

But more specifically for the OP’s sort of requirement, I did this:

But the other point: If you do not expect to be changing the setting multiple times, I encourage you to try SMT (and solder a 0 ohm resistor) instead of through hole.

If you are looking for “Brownie points” from your professor, ie. extra marks, you would do well to create a personal library, save the three pin connector into that library and then rename the connector to jumper.

There are instructions on creating personal libraries in the FAQ at the top of this page.
Once a library is created you need to:

Open the footprint editor and find the suitable connector footprint.
Right mouse click that footprint, click “save as”
In the newly opened box, give the footprint a new name (jumper) and scroll to, then highlight, your new personal library from the displayed list and save.

Kicad libraries are READ ONLY, so to create, modify or import symbols and footprints, personal libraries are required.

And for extra points you could design or find a suitable 3D model for the jumper to slip onto the pins. But that is more work possibly requiring FreeCAD and may not be worth the time. It depends on what your assignment is intended to assess. If just to learn KiCad, then this is a step too far.

I utilized the solution of making it a connector with 3 pins because of the time scramble of the project, but thank you all for the tips and I will definitely learn to design my own footprints and maybe start to amass my own library as jmk suggested, but for now I will settle on something that is going to at least work, this community seems quite nice, thanks for the help everyone

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Good luck with the assignment. Use more KiCad. Tell all your friends. You guys are the future pro users.

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And the same from me, plus, please return if you ever have problems. :slightly_smiling_face:

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What is surprising at picture you showed is that it looks like silk is for 2 pin and 3D model for 3 pin.

No it’s correct, have a look at the silkscreen lines for that series of connectors. Pin 1 is distinguished in a special way.

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