What am I doing wrong

you should have your outfeed even with your blade and slightly higher than your infeed

-- San Diego, CA US Navy

Sounds like the outfeed table is below the top of the cutting arc of the knives. Find the top of the arc and use a straight edge to bring the outfeed table up even with it. Take your time to get it spot on and the snipe should disappear. Might be a good time for a tune up of the jointer in general like making sure both tables are parallel, co-planer, etc.

ditto on that .

-- david ,new mexico ,allheart

You have to be VERY precise with the knife/outfeed table adjustment. The knives should be at EXACTly the same level as the outfeed table – well within .001. I use an aluminum bar that’s been fine-sanded to absoultely straight and flat on a surface plate to check the table and knives. I adjust the knives so they BARELY touch the bar as the cutter head is rotated by hand. I adjust until they touch the bar but not enough to hook and move it. Check every knife and check them on both ends. Also, with relatively thin pieces, you could be pressing a natural bow down against the table. This will cause the tail end to spring down as it comes off the infeed table. I always joint small work with the bow facing up. I “anchor” the tail end as I feed the piece and joint until it’s flat.

-- M1911BLDR

I just had all the knives sharpened and reinstalled them and thought I had them right, I will go check them again. I can figure on a good half day to set this thing, I have always expected the DeWalt to snipe but the jointer was always spot on even for a Chinese model. Looking at the strips of wood it is hard to see if I have bow and I am cutting with the grain with hard maple. I raised the infeed so the straightedge had just a sliver of light showing through on the infeed. Thanks for the help folks and I will give it another go this morning.

Jim G
Cushing, WI

-- Jim - Cushing, WI

Got the problem fixed, I had to raise the outfeed table so with the board flat on it the knife would just scrape the board. I am a little nervous about running 3/4×3/4×10” sticks through it, I think I will just lay each stick on the table saw and with a feeler gauge see how much gap I have and if negligible run it through the planer.

-- Jim - Cushing, WI