Affordable track saw
First step: Upgrade the blade. A good blade is only ~$15 and is a world of difference. 1/4’ mdf attached to the right side of the saw base so It will match the height of the jig. (1) perfect straight edge on 3/4” MDF glued to-(2) 1/4” MDF that is 1-1/4” wider than the 3/4” MDF . Once the glue sets, cut the 1/4” MDF using the 3/4” MDF as the fence(3) run through Table saw to make Edge #3 parallel to Edge #2 Bonus – add clamps to make into a jointer jig