Had this happen yesterday:
IMG_3681[1].jpg
For those that can't see photo's it's all 3 15" blades warped like a banana. When I bought these Powertecs I complained about the construction over on WWT.
This was on 4/4 flat sawn oak. I've run a lot of things through that planer that I shouldn't have in the past, but never this happened. I always take 1/16 or less off per pass, never 1/8. This was about 250 feet of 4/4 6" wide red oak. What's going on here? I'm glad I noticed a problem when I did. These blades are a few more passes to a knife ejection. Not doing end or edge grain here, just face.