Sure. Start with the text, ideally a little larger, bolder, than you need the final shapes to be. Convert the text to paths, and use the boolean operations (boolean difference, for example: http://write.flossmanuals.net/start-with-inkscape/boolean-operations/ ) to subtract the “text” from a larger shape that you’ll be filling– for example a big rectangle.
Then, select the resulting shape, and fill it using the AxiDraw Hatch Fill extension. For tight cross hatching, start with a line spacing of about 2 px, and make sure to adjust the tolerance parameter down to about 1. You’ll likely want to connect nearby ends, and inset from edges a little bit– but experiment with the fills to see what works well for you.