Crude way of making plated slots in Eagle

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As far as we know Eagle doesn't offer an option for making plated slots. Here are two hacks we found on the subject.

Check out our previous tutorial on building footprints in Eagle. You can also skim through our Cadsoft_Eagleother tutorials on the wiki.

Plated slot using holes

Plated slot pad resized.png

Make a pad for bottom and top layer.

Tip: When you're done with the top pad just copy it, and change its layer to the bottom layer.

Plated slot holes resized.png

Using the hole command put overlapping holes beside each other depending on your slot dimensions.

Plated slot holes gerber resized.png

The gerber should look like this. Some wedges may remain using this method because of the areas uncovered by the holes.

Plated slot using the milling layer #46

Slots need to be made to the PCB manufacturer's specifications. If no information is provided, try contacting them about it. Here's Seeed Studio's tip on how to send them PCB file with slots.

Plated slot milling layer resized.png

After doing the above top and bottom pads, draw a slot outline in 46 Milling layer.

Plated slot gerber resized.png

Note that the slot doesn't show up in the gerber.

Plated slot text resized.png

Add some text specifying there is a plated slot there. This way, you make sure they are aware of what you want for this slot.

Plated slot drc.png

This method returns a bunch of errors when running the DRC. Make sure you don't miss other errors because of it.