The Robland X31 predates modern sliding table saws where the wagon slides very close to the saw. The newer sliding saws do a great job cutting a straight edge on a crooked or waney edge board.
Here is my new attachment for the sliding table so that I too can straight line rip like the big boys! Well, not quite. The travel on the X31 sliding table is limited to sawing about 52 inches long. But for most everything I do this is plenty long enough.