Dd

"Doug"

04/03/2007 9:01 AM

jointer question

Hope you all don't mind me posting 2 questions in a row, but they seem
to hit me in waves. My jointer, only when edge jointing, not face
jointing, has been producing little scallops along the cut. I am
assuming that this is because the blades are not perfectly set. Is
that the reason?


This topic has 8 replies

Nn

"Nicky"

in reply to "Doug" on 04/03/2007 9:01 AM

04/03/2007 9:45 AM

It does sound like the knives are not set properly, or your feed rate
is too fast.

-nick


On Mar 4, 10:01 am, "Doug" <[email protected]> wrote:
> Hope you all don't mind me posting 2 questions in a row, but they seem
> to hit me in waves. My jointer, only when edge jointing, not face
> jointing, has been producing little scallops along the cut. I am
> assuming that this is because the blades are not perfectly set. Is
> that the reason?

JP

"Jay Pique"

in reply to "Doug" on 04/03/2007 9:01 AM

04/03/2007 10:03 AM

On Mar 4, 12:45 pm, "Nicky" <[email protected]> wrote:
> It does sound like the knives are not set properly, or your feed rate
> is too fast.
>
> -nick
>
> On Mar 4, 10:01 am, "Doug" <[email protected]> wrote:
>
>
>
> > Hope you all don't mind me posting 2 questions in a row, but they seem
> > to hit me in waves. My jointer, only when edge jointing, not face
> > jointing, has been producing little scallops along the cut. I am
> > assuming that this is because the blades are not perfectly set. Is
> > that the reason?

Try moving the fence to a new spot when edge jointing. My guess is
that the blades are dull in that area.

JP

Dd

"Doug"

in reply to "Doug" on 04/03/2007 9:01 AM

04/03/2007 11:10 AM

On Mar 4, 1:40 pm, "George" <[email protected]> wrote:
> "Doug" <[email protected]> wrote in message
>
> news:[email protected]...> Hope you all don't mind me posting 2 questions in a row, but they seem
> > to hit me in waves. My jointer, only when edge jointing, not face
> > jointing, has been producing little scallops along the cut. I am
> > assuming that this is because the blades are not perfectly set. Is
> > that the reason?
>
> High knife most likely, second choice feed, which will also negate a high
> knife. Third choice dull. Dull usually shows some crushed fiber at the
> high spots


The knives are brand new. I replaced them yesterday, but the
scalloping continued. So, no dull blades involved.

bb

"bc"

in reply to "Doug" on 04/03/2007 9:01 AM

05/03/2007 6:45 AM

On Mar 4, 1:10 pm, "Doug" <[email protected]> wrote:
> On Mar 4, 1:40 pm, "George" <[email protected]> wrote:
>
> > "Doug" <[email protected]> wrote in message
>
> >news:[email protected]...> Hope you all don't mind me posting 2 questions in a row, but they seem
> > > to hit me in waves. My jointer, only when edge jointing, not face
> > > jointing, has been producing little scallops along the cut. I am
> > > assuming that this is because the blades are not perfectly set. Is
> > > that the reason?
>
> > High knife most likely, second choice feed, which will also negate a high
> > knife. Third choice dull. Dull usually shows some crushed fiber at the
> > high spots
>
> The knives are brand new. I replaced them yesterday, but the
> scalloping continued. So, no dull blades involved.

I get that when my feed rate is too fast. Slow it down and it will go
away. bc

MO

Mike O.

in reply to "Doug" on 04/03/2007 9:01 AM

04/03/2007 4:29 PM

On 4 Mar 2007 09:01:38 -0800, "Doug" <[email protected]> wrote:

>Hope you all don't mind me posting 2 questions in a row, but they seem
>to hit me in waves. My jointer, only when edge jointing, not face
>jointing, has been producing little scallops along the cut. I am
>assuming that this is because the blades are not perfectly set. Is
>that the reason?

Maybe but it could be technique. Your feed rate might be fast or you
might not be putting enough pressure on your stock to hold it down
tightly. I like having a very slick joiner table which will make
things easier when holding down your stock. Use paste wax or
whatever you like to use on your table saw top.

Mike O.

Gg

"George"

in reply to "Doug" on 04/03/2007 9:01 AM

04/03/2007 6:40 PM


"Doug" <[email protected]> wrote in message
news:[email protected]...
> Hope you all don't mind me posting 2 questions in a row, but they seem
> to hit me in waves. My jointer, only when edge jointing, not face
> jointing, has been producing little scallops along the cut. I am
> assuming that this is because the blades are not perfectly set. Is
> that the reason?
>
High knife most likely, second choice feed, which will also negate a high
knife. Third choice dull. Dull usually shows some crushed fiber at the
high spots

Cc

"CW"

in reply to "Doug" on 04/03/2007 9:01 AM

04/03/2007 7:31 PM

Slow down the feedrate. There is no way around the scallops. It's the
dynamics of the cutter. Best you can hope for is very small scallops. Used
to see the same thing in slab mill cuts (metal working) before they figured
out that helical blades cut better.

"Doug" <[email protected]> wrote in message
news:[email protected]...
>
>
> The knives are brand new. I replaced them yesterday, but the
> scalloping continued. So, no dull blades involved.
>

CT

Chuck Taylor

in reply to "Doug" on 04/03/2007 9:01 AM

04/03/2007 12:04 PM

On 4 Mar 2007 09:45:35 -0800, "Nicky" <[email protected]> wrote:

>On Mar 4, 10:01 am, "Doug" <[email protected]> wrote:
>> Hope you all don't mind me posting 2 questions in a row, but they seem
>> to hit me in waves. My jointer, only when edge jointing, not face
>> jointing, has been producing little scallops along the cut. I am
>> assuming that this is because the blades are not perfectly set. Is
>> that the reason?

>It does sound like the knives are not set properly, or your feed rate
>is too fast.


I'd go with the feed rate as well. I encounter the same thing when I
get in a hurry and zip an edge across the jointer too fast. I rarely
can move the stock that fast when face jointing.


--
Chuck Taylor
http://home.hiwaay.net/~taylorc/contact/


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