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X****Liu
How to define these board edge holes?
897 1 Feb 22.2019, 10:02:49

I'm working on a project where I would like to replicate the mounting like on this HopeRF module. Kind of a general design question but as I'm using KiCad I thought I would ask here. I don't even know what you call this. 
The idea is that the user can solder standard 2.54mm pitch pins to allow for through-hole breadboard applications OR design a PCB with SMD footprints and solder it down using the half round plated edge holes. 
I tried just adding a second row of holes to the edge, with the idea that when the board is panelized I can specify a v grove between them? 

So my real question is what's the best way to design / specify this kind of thing for manufacture?

This is my attempt. It renders badly the way I'm doing it as well. 

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A****min

Mar 07.2019, 09:33:09

Well, the best option will be talking to your board manufacturer
To build a castellation the edge needs to be exposed, before the plating pass, meaning atleast some level of routing prior to plating (Its roughly like how a plated slot is made)
This out of order routing is what will generate extra costs,
The other thing is making a clear description of what you want on a mechanical layer, and again in the notes to the fabricator. If your doing something weird, expect them to need guidance

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