ESP-07 Edge Contact

I’ve found a footprint for the ESP-07 module, but the contacts are SMD surface contacts. I need to make an ESP-07 with the same type of edge contacts used on the actual module that need to engage with wire-spring type contacts. I’ve uploaded a graphic of a typical ESP-07 plate-thru edge contact.

I’ve unsuccessfully searched the KiCAD library for a similar type of contact.

I have two questions:

  • Does KiCAD have a edge contact similar to the uploaded image in the Library?
  • Can a standard VIA contact straddle a board edge (i.e. half on, half off) an be cut-thru in fabrication preserving half the VIA?

yes, you can make “Castellated” Contacts - learn how to make Footprints and set the contacts to Castellated…

I’m sure there are plenty of posts on this…

Great, Thanks for the info.

But, you have to order it specifically when manufacturing the PCB.
there is an option for castelated Hole, and you have to pay by the number of side of the board that have them.


image

To which fabricator are you referring?

My screen captures are from JLCPCB.
But most of the PCB house have an extra cost for castellated hole, as it is an extra step in the process.
After cutting the board from the panel, they have to dip each side that need castellated hole, to connect the top and bottom copper on the side after cutting.

If you just cut trough a plated hole, the cut is not clean and the “metal tube” inside the hole may not stay in place (and be cut in half).

It seems that OSH explain how to do them without a specific process here : OSH Park Docs ~ Tips+tricks ~ Castellated Edges

But I don’t know what result you get with JLCPCB if you try to do some and not get the extra process fee. I don’t know if they produce the board anyway with possibly bad quality, or if they reject the board and ask you to pay the extra fee.
I’ve found the answer:
https://jlcpcb.com/quote/pcbOrderFaq/Castellated%20holes
So they accept gerber with castellated hole without getting the extra process fee, but they warn you about the quality (it’s at the bottom of the page).

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Thanks for the detailed info; it’s really helpful. I typically go with OSH Park and the link you provided answered some of my questions. I’m going to give their approach a shot. The board I have in mind is only for some additional developmental capability.

Thanks again, X.

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