Ok my first project is an art easel....

The adjustable peice I want to create will be adjusted by a 2 parralel slots with a wing nut bolt going through them for fastening.

I actually want two depths in the slot....
One part that is wider that only goes half way through the timber (one the side of the wing nut) and the other smaller one that will go all the way through that's the size of the bolt itself.

I'm thinking this is 2 envelope cuts done at different depths and different widths?

I think I need a Router?
But which one? And do I need a Jig for it to work? (I know i can get a Jig Saw but I don't have the vision to do this type of cut).

Thanks