Any thoughts on why my Jet 6" jointer is suddenly creating a SIDE TO SIDE
taper (on the width of the board, not the length)? It's impossible to get a
good face on a nearly flat piece of rough stock. Keeps cutting on one side,
gets thinner, and thinner. If I reverse the board, I get a high spot down
the middle. I've never seen this before.
I'm in the middle of replacing the blades and tuning up the alignments.
Figured I'd start there to make sure everything is right.
Thanks.
Bob
I'd say knifes need to be adjusted. Sounds like they are not on plane with
the table.
"bob" <[email protected]> wrote in message
news:[email protected]...
> Any thoughts on why my Jet 6" jointer is suddenly creating a SIDE TO SIDE
> taper (on the width of the board, not the length)? It's impossible to get
a
> good face on a nearly flat piece of rough stock. Keeps cutting on one
side,
> gets thinner, and thinner. If I reverse the board, I get a high spot down
> the middle. I've never seen this before.
>
> I'm in the middle of replacing the blades and tuning up the alignments.
> Figured I'd start there to make sure everything is right.
>
> Thanks.
>
> Bob
>
>
"bob" <[email protected]> wrote in message news:<[email protected]>...
> Any thoughts on why my Jet 6" jointer is suddenly creating a SIDE TO SIDE
> taper (on the width of the board, not the length)? It's impossible to get a
> good face on a nearly flat piece of rough stock. Keeps cutting on one side,
> gets thinner, and thinner. If I reverse the board, I get a high spot down
> the middle. I've never seen this before.
>
> I'm in the middle of replacing the blades and tuning up the alignments.
> Figured I'd start there to make sure everything is right.
>
> Thanks.
>
> Bob
Could be you are putting more pressure on one side than on the other.
This will cause the jointer to remove more material from that side.
Sounds like your fence isn't at 90 deg to the table.
John
"bob" <[email protected]> wrote in message
news:[email protected]...
> Any thoughts on why my Jet 6" jointer is suddenly creating a SIDE TO SIDE
> taper (on the width of the board, not the length)? It's impossible to get
a
> good face on a nearly flat piece of rough stock. Keeps cutting on one
side,
> gets thinner, and thinner. If I reverse the board, I get a high spot down
> the middle. I've never seen this before.
>
> I'm in the middle of replacing the blades and tuning up the alignments.
> Figured I'd start there to make sure everything is right.
>
> Thanks.
>
> Bob
>
>
In article <[email protected]>, "Bob S."
<[email protected]> wrote:
> Bob,
>
> Sounds like the outfeed table is not parallel to the knives. Did you happen
> to lift the jointer by the outfeed table and maybe pulled one gib up
> slightly - just a few thousandths will do it. Make sure you can adjust both
> the infeed and outfeed tables and that everything is in alignment as per the
> manual.
>
> Bob S.
>
I had this problem with my jointer last year. You can check to see if the
tables are twisted by using a set of winding sticks.
David
>
> "bob" <[email protected]> wrote in message
> news:[email protected]...
> > Any thoughts on why my Jet 6" jointer is suddenly creating a SIDE TO SIDE
> > taper (on the width of the board, not the length)? It's impossible to get
> a
> > good face on a nearly flat piece of rough stock. Keeps cutting on one
> side,
> > gets thinner, and thinner. If I reverse the board, I get a high spot down
> > the middle. I've never seen this before.
> >
> > I'm in the middle of replacing the blades and tuning up the alignments.
> > Figured I'd start there to make sure everything is right.
> >
> > Thanks.
> >
> > Bob
> >
> >
Bob,
Sounds like the outfeed table is not parallel to the knives. Did you happen
to lift the jointer by the outfeed table and maybe pulled one gib up
slightly - just a few thousandths will do it. Make sure you can adjust both
the infeed and outfeed tables and that everything is in alignment as per the
manual.
Bob S.
"bob" <[email protected]> wrote in message
news:[email protected]...
> Any thoughts on why my Jet 6" jointer is suddenly creating a SIDE TO SIDE
> taper (on the width of the board, not the length)? It's impossible to get
a
> good face on a nearly flat piece of rough stock. Keeps cutting on one
side,
> gets thinner, and thinner. If I reverse the board, I get a high spot down
> the middle. I've never seen this before.
>
> I'm in the middle of replacing the blades and tuning up the alignments.
> Figured I'd start there to make sure everything is right.
>
> Thanks.
>
> Bob
>
>
From the sounds of it somehow you have gotten at least one blade higher on
one side (the side that is cutting) then the other. Remember, it only take
one of the blades to be out not necessarily all of them.
--
Mike G.
[email protected]
Heirloom Woods
www.heirloom-woods.net
"bob" <[email protected]> wrote in message
news:[email protected]...
> Any thoughts on why my Jet 6" jointer is suddenly creating a SIDE TO SIDE
> taper (on the width of the board, not the length)? It's impossible to get
a
> good face on a nearly flat piece of rough stock. Keeps cutting on one
side,
> gets thinner, and thinner. If I reverse the board, I get a high spot down
> the middle. I've never seen this before.
>
> I'm in the middle of replacing the blades and tuning up the alignments.
> Figured I'd start there to make sure everything is right.
>
> Thanks.
>
> Bob
>
>