I have a Delta table top planner. I have used it for a many years now and it has worked well. Lately I have noticed some small ridges in the boards I would say they are about 1/32 - 1/16 in height and no more than 1/8" wide. Not sure why I am getting these. I am using the second side of the blade and changed it out a few months ago. I have not planned a lot of wood on these blades. With some 80 grit I can sand these ridges out, but would rather not have them in the first place. Any Idea's on what is causing this and what I should do.
Scott