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jointer outfeed table

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Forum topic by Spitfire1 posted 09-02-2017 06:44 PM 432 views 0 times favorited 10 replies Add to Favorites Watch
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Spitfire1

53 posts in 516 days


09-02-2017 06:44 PM

Topic tags/keywords: jointer question straight knife

I am curious at what depth most people set their outfeed table on the jointer. I’ve read various post online with conflicting information. Newwwoodworker.com recommends setting the outfeed table at the exact same height as the jointer knives while many other suggest setting the heights a few thousands of an inch below the jointer knives.

I have a general international jointer with straight knives and a Oneway multi gauge for setting jointer knife height. Purchased my jointer late last year but I have not used it a great deal yet.


10 replies so far

View Loren's profile

Loren

9411 posts in 3426 days


#1 posted 09-02-2017 07:05 PM

I set it slightly below. I suppose in theory
this could mess up the results of cutting
wood but in practice I’ve found results
satisfactory.

View ScottKaye's profile

ScottKaye

531 posts in 1731 days


#2 posted 09-02-2017 07:21 PM

My outfeed table is set about .001 to .003. below the knives. Nothing worse than jointing a piece of wood and having it hit the front lip of the out feed table and either come to a crashing halt or hiccup up and over the lip of the table. Basically, I set the knives even with my table top and by the time I’m done adjusting the set screws, they have moved up a few thousandths of an inch. By the way, the Oneway multigauge is a nice tool to have to get an accurate reading of the relationship of your knives to the table.

-- "Nothing happens until you build it"

View EricTwice's profile

EricTwice

223 posts in 311 days


#3 posted 09-02-2017 07:53 PM

about .003 (the set is correct when rotating the knife moves a wooden board 1/4 in. )

-- nice recovery, They should pay extra for that mistake, Eric E.

View MrUnix's profile

MrUnix

5793 posts in 1977 days


#4 posted 09-02-2017 08:55 PM

Outfeed table should be set to the exact same height as the infeed table at zero cut… then you set the knives relative to the outfeed table. You seem to be going about it backwards.

Cheers,
Brad

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

View Rich's profile

Rich

1669 posts in 367 days


#5 posted 09-02-2017 09:33 PM



Outfeed table should be set to the exact same height as the infeed table at zero cut… then you set the knives relative to the outfeed table. You seem to be going about it backwards.

Cheers,
Brad

- MrUnix

+1. That’s the intent of the magnetic knife setting jig. I know some folks don’t like them, but I have had good results using them. After getting them set with the jig, I go back with my Oneway Multi-Gauge that has a dial caliper to double-check they are flush with the outfeed, rotating the head to read top-dead-center.

I then use the same gauge set on the infeed side with the foot of the caliper resting on the outfeed to adjust my depth of cut.

-- No matter how much you push the envelope, it'll still be stationery.

View Spitfire1's profile

Spitfire1

53 posts in 516 days


#6 posted 09-03-2017 12:50 AM

Sounds like the general consensus is to have the blades slightly higher then the outfeed table.

I had noticed some bowing maybe about a 1/32 of an inch in the middle of my boards when trying to joint some maple. I read somewhere (wish I could find it now) that this maybe a result of the knives being slightly too high so I was curious to know others thoughts.

View MrUnix's profile

MrUnix

5793 posts in 1977 days


#7 posted 09-03-2017 12:59 AM

For freshly sharpened knives, I try to get them 0.001-0.002” proud of the outfeed table. After just a little bit of usage, the razor thin leading edge gets worn back to where they are dead even. For used knives that I am just re-setting for some reason, I shoot for between dead level and 0.001” above the outfeed table.

This is done with a dial indicator… I did it for years with the straight edge, and never knew just how far off you can be using that method – until I got the indicator :)

If you are getting 1/32” bow in your boards, then your technique is wrong, not the knives. 99% of using a jointer is proper technique. Setting the knives is the easy part.

Cheers,
Brad

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

View Aj2's profile

Aj2

1118 posts in 1576 days


#8 posted 09-03-2017 02:55 AM

If your knives are too high above the outfeed table you will get snipe at the end of the cut.
If your knives are too low you will not be able to take a full pass because you wood will rub on the lip of the outfeed table and get pushed up and out of the cut.
If your knives are dull you’ll have problems if your tables are not flat and coplaner you will have problems.
Try edge jointing two pieces of maple and holding them together look for gaps on the trailing end.It good to have a tiny bit of snipe.

-- Aj

View jonah's profile

jonah

1245 posts in 3076 days


#9 posted 09-03-2017 11:05 AM



For freshly sharpened knives, I try to get them 0.001-0.002” proud of the outfeed table. After just a little bit of usage, the razor thin leading edge gets worn back to where they are dead even. For used knives that I am just re-setting for some reason, I shoot for between dead level and 0.001” above the outfeed table.

This is done with a dial indicator… I did it for years with the straight edge, and never knew just how far off you can be using that method – until I got the indicator :)

If you are getting 1/32” bow in your boards, then your technique is wrong, not the knives. 99% of using a jointer is proper technique. Setting the knives is the easy part.

Cheers,
Brad

- MrUnix


This..

Except for knife setting being the easy part.

View AlaskaGuy's profile

AlaskaGuy

3400 posts in 2087 days


#10 posted 09-03-2017 05:55 PM

Hopefully this link works.

http://woodworkerszone.com/wiki/index.php?title=Setting_jointer_outfeed_table

-- Alaskan's for Global warming!

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