Creating a semi-transparent 3D cube with borders in Illustrator

Question

I'm trying to create a 3D cube with different colored borders and face-transparency(while keeping the borders 100% opaque) in Illustrator. Like so(the dotted lines on the backside aren't completely necessary, but would be nice too):

I've made the cube below using Effect > 3D > Extrude & Bevel, with "Draw hidden faces" checked, and making the fill semi-transparent:

I've tried fiddling with all of the color settings I can find for the original 2D square, but I'm having trouble getting a border to show and not extrude as well.

This is the cube with a border color defined on the 2D square & with the opacity of just the fill reduced:

Anyone know how to do this while keeping the cube/shape unexpanded, without hand-drawing each side, etc, or if it's even possible in Illustrator?

Answer 1

With what you've already done just select the cube and then do Object → Expand Appearance and you can fine tune whatever you'd like.

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Alternatively you could've just

1. Draw a square
2. Duplicate the square
3. Move the duplicate to your desired position
4. Use Pen Tool to draw in remaining walls from corner to corner
5. Adjust to taste