I've given up. I have a 6" delta jointer that doesn't want to put perfectly flat edges on the wood. When I go to put the pieces of wood to glue together there is a very small gap (like the picture below) in the middle where the boards come together. On boards 3 foot long, I would say that I could slide a birthday card between the boards. Any ideas on what's wrong? do I need to sharpen the blades? Any help will be greatly appreciated. It worked perfect until about a couple of weeks ago and now it is doing this!
gap.JPG