Altium representation of Touch Lamp PCBs What the PCBs looked like after I had them made (two variants) In this case, when I exported the Gerber’s, I did not include the rectangle that went around the entire board, as I didn’t want the little triangles included. To achieve this, I had to import my nominal PCB twice, once for the upright orientation, and once for the upside down orientation. Below you can see Altium’s PCB view as well as the final product.
Here I joined boards directly to each other. I don’t recall this being an option when I had the boards made (~March 2020), but it is on their website (Jan 2021).īelow is another design I had manufactured this year for my Touch Lamp. You just provide the milling outline around the entire board, and they’ll add the tabs. OSH Park actually offer to do the tabs themselves. What my board outline layer looked like for OSH Park (Altium Gerber viewer) How OSH Park showed my boards after importing In the flesh? As such the board outline layer looked like this (along with how OSH Park displayed it and how they came out). They want the outline of the milled area as opposed to a single trace for the mill. They ask for a slightly different layout. How JLCPCB showed my boards after importing And what the final product looked likeĪt the same time I had the same boards manufactured with OSH Park. Hole size and spacing should be on your fab’s recommendations.The width of the part/board should be the width of your routed edge.In my example, I have two rows of holes, even though the boards are linked to a frame.If you’re linking boards directly to other boards, you want two rows of holes, if you are linking boards to a frame, you only need one row of boards, inline with the edge of the board.A custom part is better, but both will work. To place these in your design, you need to either make a custom part, or create another PCB design that contains just the holes required for your tab.This is just a bit of bridging PCB, that has an edge perforated with little holes to make it easier to break off. Now that we have the boards routed, we need to add in breakaway tabs, also known as mouse-bites.If this will cause a fitment problem, you need to update your original standalone PCB layout to take the routing into account In the right image you can see this curved routing path in the generated PCB view. In left image, you can see how your original board outline has a sharp angle, but the generated routing path has a radius.
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