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Forum topic by Banjo40 posted 09-12-2015 06:35 AM 942 views 0 times favorited 12 replies Add to Favorites Watch
View Banjo40's profile


11 posts in 1167 days

09-12-2015 06:35 AM

I have a question when you set jointer blades is there a certain height the out feed table should be before you start? I have been trying to set the blades in my jointer. I fooled around with the height of the out feed table which really has made things worse. Iv tried real hard to get this thing set up right. Any help would be appreciated.

12 replies so far

View MrUnix's profile


6719 posts in 2200 days

#1 posted 09-12-2015 06:48 AM

Crank your infeed table to zero and then set your outfeed table the same height. Drop the infeed table and set your knives level to the outfeed table.


-- Brad in FL - In Dog I trust... everything else is questionable

View rwe2156's profile


2926 posts in 1481 days

#2 posted 09-12-2015 12:59 PM

The outfeed table should be parallel to the cutterhead so you can set the blades referencing on the cutterhead with a blade setting jig.

Then adjust outfeed height accordingly.

-- Everything is a prototype thats why its one of a kind!!

View joey502's profile


535 posts in 1519 days

#3 posted 09-12-2015 02:40 PM

The tables need to be coplanar as well as the cutter head being parallel to the table.

I always follow the same steps when I replace my jointer knives. This is for new knives, resharpened knives or simply checking and cleaning.

1. Remove the all 3 knives.
2. Lower the jack screws to their lowest point.
3. Clean out the head and the bars that hold the knives in.
4. Replace one knife at a time. I set both sides of the knife close to the outfeed and then tighten the screws at each end just enough to hold the knife in place but not tight enough to prevent it from moving. I then adjust that knife (by adjusting jack screws) so both sides are .001 above the outfeed table. When the knife is where I want it i then tighten the screws to secure the knife. Each screw is tightened a little at a time to prevent the knife from sliding around on me.
5. Repeat step 4 for the remaining knives. Checking and rechecking throughout the process.

I do not use any type of jig to hold the knife, just a dial indicator like this one. I my opinion the jigs add and unnecessary variable to the equation. I just don’t see their point.​ti-gauge.aspx

This may seem like overkill but the jointer is the one tool that has to be calibrated correctly.

View TheWoodenOyster's profile


1317 posts in 1936 days

#4 posted 09-12-2015 03:12 PM

Agree with above. Be patient. Setting up a jointer may be my least favorite thing in woodworking, which is why the next dream tool is a helical head paralelogram jointer. Set it up once, maybe rotate or replace the cutters a few times in my life. Awesome.

-- The Wood Is Your Oyster

View Banjo40's profile


11 posts in 1167 days

#5 posted 09-12-2015 06:50 PM

Thanks everyone for all your replies I appreciate it so much!

View rick1955's profile


264 posts in 1432 days

#6 posted 09-12-2015 06:53 PM


-- Working smarter with less tools is a true crafts person...

View SirIrb's profile


1239 posts in 1231 days

#7 posted 09-12-2015 07:12 PM

It was well covered above. But being as passionate about joiners as I am I must add some love here.

My DJ-15 had a height the outfield should be above the head proper. I totally forget what that was. But check your manual to see. But if you follow the above you should really not have a problem.

Use a dial indicator to set your table to head and knife height Yes, to the .001. Why, you ask. You asked “why”? It matters. It always matters. Everything matters. A jointer isn’t a machine for SWAGs. It is a precision machine.

Love your jointer and it will love you back.
(I don’t know if that’s a site and I for one won’t try to find out)

-- Don't blame me, I voted for no one.

View Banjo40's profile


11 posts in 1167 days

#8 posted 09-12-2015 07:17 PM

Thanks Sirlrb

View lumbermeister's profile


128 posts in 1980 days

#9 posted 09-12-2015 07:27 PM

As long as you are using straight knives (and not spiral cutters), the outfeed table need not be coplanar with the cutterhead, but it must be level with the top of the knives (there is a debate – some say the knives should be about 0.002” higher than the outfeed table to account for predicted wear; this is how my jointer is adjusted). Since the blade heights are adjusted independently from the position of the cutterhead, aligning the blade edges level with the outfeed table will true the jointer, regardless of cutterhead position.

View Banjo40's profile


11 posts in 1167 days

#10 posted 09-13-2015 04:53 AM

Thanks Lumbermeister,,,,see what i did was is I tried to adjust the out feed table so the blades would not have to be raised so high in the cutter head. And last night I really thought I had it but when I ran a board across it. The board didn’t even touch the blades ! And I had the infeed set to take a very small cut. Sooner or later I will get it right but man I tell you Iv had nothing but aggravation. What really puzzles me is I have studied and watched every video on this subject. And not not having any luck with any of the methods. I have a good jointer so I’m not blaming the machine it’s all me. Maybe I’m cursed or something cause Iv really studied hard and paid attention. I watch Charles Neil ,,the wood whisperer ,,Brian Grella. All the pros but I will get it I’m not giving up. Thanks again everyone !

View MrUnix's profile


6719 posts in 2200 days

#11 posted 09-13-2015 05:49 AM

If your knives were set level with the outfeed table at TDC, there is no way the board wound not touch at all unless you have your depth of cut set to zero (or your wood is severely bowed).

Sounds like you are messing with the outfeed table adjustment too much… Set the outfeed table where you want it (usually at zero cut as per infeed), lock in place if you can, and DON’T touch it again. Then you can set the knives at TDC with the outfeed table as the reference – using either the straight edge, dial indicator or whatever your preferred method is (and as shown in countless videos out there).


PS: Don’t forget to reset your depth of cut indicator so it accuratly reflects the outfeed position after adjustments (if you didn’t use it to set the outfeed of course).

-- Brad in FL - In Dog I trust... everything else is questionable

View Banjo40's profile


11 posts in 1167 days

#12 posted 09-13-2015 02:58 PM

Thank you Mr Unix yes I was moving the outfeed a lot to much. I will do as you say. I appreciate the info a lot !

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