Dewalt DW735 performance issues

[David Utterback]

Have you checked the blades and their mounting surfaces as Mike suggested?

[Scott Clausen]

I you try a pass with another board through the planner Do you get the same result? If yes that would call the planner knives into question. I don't know how much work you are looking at but you could also get out the winding sticks and go all hand tool.

[Assaf Oppenheimer]

I you try a pass with another board through the planner Do you get the same result? If yes that would call the planner knives into question. I don't know how much work you are looking at but you could also get out the winding sticks and go all hand tool.

i had one five foot board. I live in an apartment building and I needed to finish making noise before afternoon. I ended up planing it by hand. It at least was thicknesses parallel to the jointed surface. Which was the most important part for me.

[Assaf Oppenheimer]

I haven't yet checked the blades

[Myk Rian]

It could be the thickness adjustments within the planer. Something could be loose, or worn.
Measure the thickness of the board in several places to see if it has any variation.