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All Replies on Jointer knives placement??

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View groland's profile

Jointer knives placement??

by groland
posted 11-24-2018 05:26 PM


17 replies so far

View Aj2's profile

Aj2

2280 posts in 2192 days


#1 posted 11-24-2018 05:31 PM

Just get them all set the same.
Then you can adjust your outfeed table up or down for the perfect cut with no sniping.

-- Aj

View AlaskaGuy's profile

AlaskaGuy

5283 posts in 2703 days


#2 posted 11-24-2018 06:10 PM


Just get them all set the same.
Then you can adjust your outfeed table up or down for the perfect cut with no sniping.

- Aj2


+1

I use a dial indicator to set my knives even to the out feed table. This is actually just a reference point at this point but also very close to where they end up. Then I lower the out feed table about 1/8 or 1/4 lower than the knives. I then make a make a cut with a piece of stock I know is straight until its a inch or two over on to the out feed side. Then I raise the out feed table up to just barely touch my cut. This works for me. And like Aj2 says if you get any snipe the out feed table it a tad low.

-- Alaskan's for Global warming!

View TheFridge's profile

TheFridge

10858 posts in 1880 days


#3 posted 11-25-2018 04:30 PM

Ditto. Get em even. Fine tune table height later.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View jonah's profile

jonah

2075 posts in 3692 days


#4 posted 11-25-2018 04:40 PM

You don’t want to be messing with the outfeed table (if you even can, some designs have immobile outfeed tables). You reference everything off the outfeed table. You make the infeed coplanar to it. You set the knives to be a thousandth of an inch or two above the outfeed table.

Leave the outfeed alone and adjust everything else to it.

View RogerM's profile

RogerM

799 posts in 2793 days


#5 posted 11-25-2018 06:03 PM

I set my jointer (Delta DJ-20) knives with just a straight edge. Straight edge is placed on the outfeed table then knives are raised until they just touch the straight edge. This sets the knives at exactly the same height as the outfeed table which has always given me excellent results. I have never adjusted my outfeed table and would advise against messing with it.

-- Roger M, Aiken, SC

View Aj2's profile

Aj2

2280 posts in 2192 days


#6 posted 11-25-2018 06:49 PM

Unless there’s something seriously wrong with your machine you should be able to lower and raise your outfeed any day of the week. Jointers are designed to keep the tables in plane with each other as they are moved. Up or down
So don’t be a scaredy-cat like ^ guys. Your not going to hurt nothing.

-- Aj

View Phil32's profile

Phil32

546 posts in 297 days


#7 posted 11-25-2018 07:55 PM


Unless there’s something seriously wrong with your machine you should be able to lower and raise your outfeed any day of the week. Jointers are designed to keep the tables in plane with each other as they are moved. Up or down
So don’t be a scaredy-cat like ^ guys. Your not going to hurt nothing.

- Aj2


The infeed and outfeed tables of a jointer are NOT aligned (in plane) with each other. The outfeed is aligned with the wood surface beyond the cutter head which is clearly different from the infeed side.

-- Phil Allin - There are mountain climbers and people who talk about climbing mountains. The climbers have "selfies" at the summit!

View Aj2's profile

Aj2

2280 posts in 2192 days


#8 posted 11-25-2018 08:40 PM

Ok professor Phil

-- Aj

View Planeman40's profile

Planeman40

1413 posts in 3155 days


#9 posted 11-25-2018 09:01 PM

This is for those of you who have straight planer blades, not the spiral carbide type.

Here is a hint: If your present planer blades are set properly but just need replacing, LEAVE THE HEIGHT ADJUSTMENT ALONE when removing the old blades and re-installing new ones. Straight planer blades are machined to all be the exact same height. You should be able to simply drop the new blades in and tighten up. This should hold true on properly machine resharpened blades. If you do this, its not the nightmare job blade change can be. Further adjustments should only be adjusting the infeed and outfeed tables.

-- Always remember: It is a mathematical certainty that half the people in this country are below average in intelligence!

View Richard Lee's profile

Richard Lee

241 posts in 1169 days


#10 posted 11-25-2018 09:08 PM



Unless there’s something seriously wrong with your machine you should be able to lower and raise your outfeed any day of the week. Jointers are designed to keep the tables in plane with each other as they are moved. Up or down
So don’t be a scaredy-cat like ^ guys. Your not going to hurt nothing.

- Aj2

I agree.

View Rich's profile

Rich

4493 posts in 983 days


#11 posted 11-25-2018 09:33 PM


Straight planer blades are machined to all be the exact same height. You should be able to simply drop the new blades in and tighten up. This should hold true on properly machine resharpened blades. If you do this, its not the nightmare job blade change can be. Further adjustments should only be adjusting the infeed and outfeed tables.

- Planeman40

I assume you meant jointer blades, not planer.

It’s definitely not the case with my Jet jointer that they just drop in and are aligned. I use a magnetic jig to set them at the same height as the out feed table.

Then again, maybe you are thinking of a planer since that’s how the DW 735 blades work.

-- Knowledge is not skill. Knowledge plus ten thousand times is skill. -- Shinichi Suzuki

View AlaskaGuy's profile

AlaskaGuy

5283 posts in 2703 days


#12 posted 11-25-2018 09:41 PM


You don t want to be messing with the outfeed table (if you even can, some designs have immobile outfeed tables). You reference everything off the outfeed table. You make the infeed coplanar to it. You set the knives to be a thousandth of an inch or two above the outfeed table.

Leave the outfeed alone and adjust everything else to it.

- jonah


I move my out feed table all the time. Not a problem in the least. I’ve been doing it on my present jointer for the last 19 years. I can’t think of a single reason to change now.

-- Alaskan's for Global warming!

View AlaskaGuy's profile

AlaskaGuy

5283 posts in 2703 days


#13 posted 11-25-2018 10:10 PM

Did anyone read the instructions that was with the drawing in my first post?

It started with “I use a dial indicator to set my knives even to the out feed table.”

-- Alaskan's for Global warming!

View Aj2's profile

Aj2

2280 posts in 2192 days


#14 posted 11-25-2018 10:13 PM

What jointer do you have Alaska guy. I remember seeing part of it in a post once I didn’t recognize the make.

I think some guys on this forum are watching too many you tube videos like the wood whisperer and other cornballs.
That’s why so much fear and confusion about jointers.

-- Aj

View AlaskaGuy's profile

AlaskaGuy

5283 posts in 2703 days


#15 posted 11-25-2018 10:40 PM



What jointer do you have Alaska guy.
I think some guys on this forum are watching too many you tube videos like the wood whisperer and other cornballs.
That’s why so much fear and confusion about jointers.

- Aj2


-- Alaskan's for Global warming!

View AlaskaGuy's profile

AlaskaGuy

5283 posts in 2703 days


#16 posted 11-25-2018 10:47 PM


What jointer do you have Alaska guy.
I think some guys on this forum are watching too many you tube videos like the wood whisperer and other cornballs.
That’s why so much fear and confusion about jointers.

- Aj2

- AlaskaGuy


I have a Felder 16” J/P combo. In that same 19 year period at my work placeI used both Powermatic and Delta jointers both 8”. I move those out feed tables at times also.

-- Alaskan's for Global warming!

View Aj2's profile

Aj2

2280 posts in 2192 days


#17 posted 11-26-2018 01:20 AM

Aww very nice machine.

-- Aj

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