step 1:get a blueprint step 2:draw smth step 3:add an animation frame step 4:colour the whole drawing in animation frame 2 the colour of the outline step 5:duplicate it step 6:change the duplicated blueprint's frame to animation frame 2 step 7:make the animation frame 2's layer behind the original frame step 8:make the blueprint with the 2nd animation frame bigger (resize it to the left top corner) step 9:done

Its not 3d enough!