I'm tuning up a 30" jointer. outfeed table is cast and does not adjust.
I've adjustd the infeed table to as close as possible (i took the infeed
table to a machine shop for flatness verification). When I run 6' long
boards through, about 1 foot from the end I get no jointing (blades lose
contact with the wood). When I put 2 jointed boards together I have a 1/16
gap in the middle. any suggestions or tips on how to align this thing.
thanks
"Mcgyver" <[email protected]> wrote in message
news:P_wub.91540$jy.57223@clgrps13...
> I'm tuning up a 30" jointer. outfeed table is cast and does not
adjust.
> I've adjustd the infeed table to as close as possible (i took the
infeed
> table to a machine shop for flatness verification). When I run 6'
long
> boards through, about 1 foot from the end I get no jointing (blades
lose
> contact with the wood). When I put 2 jointed boards together I have a
1/16
> gap in the middle. any suggestions or tips on how to align this
thing.
> thanks
>
When you say you've adjusted the infeed table as close as possible what
do you mean? Your knives should be adjusted to the outfeed table (dead
bang, gnat's ass level) and the infeed table should be adjusted to be
co-planer to the outfeed table.
Is that where you're at? And by 30" you're talking w i d e? If
so, it must be an old machine so you might try http://www.owwm.com for
more advice.
I found that with my 6" Jet I had to have the outfeed table ever so
slightly lower that the blade
height. If I had everything dead even, I'd get the board rising above
the outfeed table
as it passed over the cutter. My only idea is that there is a degree of
spring back from the
cut (pine) which effectively reduces the cut depth.
-Bruce
Mcgyver wrote:
>
> Hi, sorry 6" jointer, bed is 30" long. infeed is coplaner down to 10/1000 as
> best as I can get it with feeler gauges. I have set the knives dead level
> with the outfeed table. I'm confused by the 1' of no jointing at the end of
> the cut. does this mean that the tail of the infeed table is
> raised/lowered? thanks
>
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Basically from what I determined, table ends (either infeed or outfeed)
that are too high (tables form a "U" shape) will make the board edge
convex.
table ends that are too low (sagging into an upside down "U") will make
the board edge concave
(OPs symptom).
A cutter that is too high or too low relative to the outfeed table
(tables are otherwise coplanar)
will always result in a concave board end.
Non-coplanar tables would give the same symptoms but a lot would also
depend
on technique. Consider that with the outfeed table completely removed
and the infeed
table guiding the cut for the entire length (impossible I know, but...)
the cut would
be dead flat. With the outfeed table installed and used to guide the
entire cut, the cut
would also be dead flat. The problem arises when the transfer from the
infeed table guiding the
cut to the outfeed table doing the guiding. If either table was higher
at the ends away from
the cutter, the board would have a convex profile. If the table ends
were lower, the board
would take on a concave profile (and display symptoms like the OP
describes).
The alternative is if the cutter is too high, the outfeed edge of the
board would "tip" down
when guiding duties are transferred to the outfeed table (concave board
edge results).
If the cutter was too low the board would jump up onto the outfeed table
at the start of the
cut and likewise tip down when guiding pressure was transferred from
infeed to outfeed.
Since the OP seems assured that the tables are coplanar, I'd suggest
trying to nudge the outfeed
table down a tiny bit and running some test cuts to see if the edge gets
any straighter.
The tables certainly could be askew, but I think its easier to play with
outfeed table height
first before messing with table alignment.
-Bruce
Doug Miller wrote:
>
> But did that result in the last *foot* of the board not touching the knives,
> as the OP noted? IME, that leads to missing an inch or so at the end, but an
> entire *foot*?
>
> I still think his tables aren't parallel.
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Hi, 6' of timber that's a nice piece of timber to steady from the feed side
of your planer!
the timber may be just rising from the infeed table as the majority of the
mass of timber passes of the outfeed table, you may just need additional
support rollers after the out feed table to ensure contact with both tables
during the planing process.
Lew
"Mcgyver" <[email protected]> wrote in message
news:P_wub.91540$jy.57223@clgrps13...
> I'm tuning up a 30" jointer. outfeed table is cast and does not adjust.
> I've adjustd the infeed table to as close as possible (i took the infeed
> table to a machine shop for flatness verification). When I run 6' long
> boards through, about 1 foot from the end I get no jointing (blades lose
> contact with the wood). When I put 2 jointed boards together I have a
1/16
> gap in the middle. any suggestions or tips on how to align this thing.
> thanks
>
>
As far as the straight edge your talking about, is it a STRAIGHT edge
or something from borg. I've gone round and round with my jointer using
a " sort of straight" edge. If you want that thing to do what it is
supposed to you got to get a REAL STRAIGHT straight edge. Aligning your
machine to a crooked straight edge is inducing error and it will haunt
you forever. Just my .02
jack
OR
He's trying to join an edge with a convexity by laying the leading edge on
the table and holding everything down, instead of jointing the middle
first..
Even with a drooping outfeed, proper hand position just after the knives
would compensate. Of course, the board wouldn't be touching the end of
same.
"Doug Miller" <[email protected]> wrote in message
news:kJMub.11392$P%[email protected]...
>
> But did that result in the last *foot* of the board not touching the
knives,
> as the OP noted? IME, that leads to missing an inch or so at the end, but
an
> entire *foot*?
>
> I still think his tables aren't parallel.
Hi,
Mcgyver are you like your name sake " super human" almost
lets get back to basics planer 30" to me that's 15" infeed 15" out feed,
right?
Board 6' that's 84" long, right ? how thick and wide is this 6' plank?
Others can work out the figures but I recon with the forces lifting this
plank off the cutterhead when 3' to 4' of timber is hanging off the out feed
table you have to be Mcgyver!!
Do the math!!
So with out feed rollers or equivalent how do you support this mass and
keep a clean even consistent cut?
Lew
My math has 6' as 72". And I did 2x10 birch on my old 4" Rockwell (30'
table), so perhaps your arm is as weak as your math.
"Lew Hylton" <[email protected]> wrote in message
news:[email protected]...
> Hi,
> Mcgyver are you like your name sake " super human" almost
> lets get back to basics planer 30" to me that's 15" infeed 15" out feed,
> right?
> Board 6' that's 84" long, right ? how thick and wide is this 6' plank?
> Others can work out the figures but I recon with the forces lifting this
> plank off the cutterhead when 3' to 4' of timber is hanging off the out
feed
> table you have to be Mcgyver!!
>
> Do the math!!
>
> So with out feed rollers or equivalent how do you support this mass and
> keep a clean even consistent cut?
>
> Lew
>
>
Doug Miller wrote:
> I still think his tables aren't parallel.
I haven't been following this thread closely,
Has anyone brought up the shapers gibs?
A lose gib will allow a table to sag, and the mass of the table would
put enough force on the ways that looseness may not be noticed.
Just throwing out a thought.
About steel rules? The rules sold at the BORG are not steel rules, their
strips of metal with numbers stamped on them. They *may* be OK for rough
carpentry and of some use in fine(r) woodworking but suitable for
machine setup? (lol)
No!
--
Mark
N.E. Ohio
Never argue with a fool, a bystander can't tell you apart. (S. Clemens,
A.K.A. Mark Twain)
When in doubt hit the throttle. It may not help but it sure ends the
suspense. (Gaz, r.moto)
In article <K3yub.91654$jy.29648@clgrps13>, "Mcgyver" <[email protected]> wrote:
>Hi, sorry 6" jointer, bed is 30" long. infeed is coplaner down to 10/1000 as
>best as I can get it with feeler gauges. I have set the knives dead level
>with the outfeed table. I'm confused by the 1' of no jointing at the end of
>the cut. does this mean that the tail of the infeed table is
>raised/lowered? thanks
I know of only two errors in jointer setup that can produce the problem you
describe: either the knives are set significantly below the outfeed table, or
the tables are not coplanar.
"Coplanar" means "in the same plane". When talking about jointer tables, this
means that (a) the tables are not twisted with respect to each other, and (b)
they are dead parallel fore-and-aft. I think your tables are not coplanar. I
think they're tilted like this: / \
Raise the infeed table until the inboard end of it (just before the cutter
head) is at the same height as the inboard end of the outfeed table. Then lay
a long straightedge along the infeed table, extending over the outfeed table.
I think you will find that the outboard end of the outfeed table is
significantly below the straightedge.
If this is the problem, it's best corrected by shimming the mounts of
the outfeed table if possible. Since the outfeed table doesn't move, once
shimmed properly, the setting should hold forever. If you shim the infeed
table, repeated movement of the table could wear down the shim enough to
eventually misalign the table again.
Good luck, and be sure to let us know what the trouble is.
--
Doug Miller (alphageek at milmac dot com)
How come we choose from just two people to run for president and 50 for Miss America?
Joe, when you say "it doesn't have to be by much" what kind of number are
we talking, 5 thousands...? I've used the straightedge from the outfeed
and had all the blades "nick" (just touch) slightly. is this not accurate
enough. should I pull out the old dial indicator and figure out some way
to mount it to get more accurate. does anyone have a diagram of how I
would use the dial indicator and keep it level over the whole 6 inches?
thanks from a jointer newbie!
"Joe Zeh" <[email protected]> wrote in message
news:[email protected]...
> Myx gave you the solution in the first reply. The outfeed table is higher
> than the cutters. It doesn't have to be by much, very little offset will
do
> it. So make your adjustments very accureate. What happens is that you
start
> off by cutting the depth you desire. But then the piece reaches the
outfeed
> table and has to rise up onto the table. At that instant you are still
> cutting but now not at the depth you desire. As the piece continues
through
> the planer the weight you shift to the front of the piece forces the very
> leading edge flat onto the outfeed table and lifts up the trailing edge to
a
> height that is above the cutters. Try drawing this out on paper and you
will
> see what is happening.
>
> Joe....
>
> "Mcgyver" <[email protected]> wrote in message
> news:K3yub.91654$jy.29648@clgrps13...
> > Hi, sorry 6" jointer, bed is 30" long. infeed is coplaner down to
10/1000
> as
> > best as I can get it with feeler gauges. I have set the knives dead
level
> > with the outfeed table. I'm confused by the 1' of no jointing at the
end
> of
> > the cut. does this mean that the tail of the infeed table is
> > raised/lowered? thanks
> > "Caractacus Potts" <[email protected]> wrote in message
> > news:[email protected]...
> > >
> > > "Mcgyver" <[email protected]> wrote in message
> > > news:P_wub.91540$jy.57223@clgrps13...
> > > > I'm tuning up a 30" jointer. outfeed table is cast and does not
> > > adjust.
> > > > I've adjustd the infeed table to as close as possible (i took the
> > > infeed
> > > > table to a machine shop for flatness verification). When I run 6'
> > > long
> > > > boards through, about 1 foot from the end I get no jointing (blades
> > > lose
> > > > contact with the wood). When I put 2 jointed boards together I have
a
> > > 1/16
> > > > gap in the middle. any suggestions or tips on how to align this
> > > thing.
> > > > thanks
> > > >
> > >
> > > When you say you've adjusted the infeed table as close as possible
what
> > > do you mean? Your knives should be adjusted to the outfeed table
(dead
> > > bang, gnat's ass level) and the infeed table should be adjusted to be
> > > co-planer to the outfeed table.
> > >
> > > Is that where you're at? And by 30" you're talking w i d e?
If
> > > so, it must be an old machine so you might try http://www.owwm.com for
> > > more advice.
> > >
> > >
> >
> >
>
>
Hi, sorry 6" jointer, bed is 30" long. infeed is coplaner down to 10/1000 as
best as I can get it with feeler gauges. I have set the knives dead level
with the outfeed table. I'm confused by the 1' of no jointing at the end of
the cut. does this mean that the tail of the infeed table is
raised/lowered? thanks
"Caractacus Potts" <[email protected]> wrote in message
news:[email protected]...
>
> "Mcgyver" <[email protected]> wrote in message
> news:P_wub.91540$jy.57223@clgrps13...
> > I'm tuning up a 30" jointer. outfeed table is cast and does not
> adjust.
> > I've adjustd the infeed table to as close as possible (i took the
> infeed
> > table to a machine shop for flatness verification). When I run 6'
> long
> > boards through, about 1 foot from the end I get no jointing (blades
> lose
> > contact with the wood). When I put 2 jointed boards together I have a
> 1/16
> > gap in the middle. any suggestions or tips on how to align this
> thing.
> > thanks
> >
>
> When you say you've adjusted the infeed table as close as possible what
> do you mean? Your knives should be adjusted to the outfeed table (dead
> bang, gnat's ass level) and the infeed table should be adjusted to be
> co-planer to the outfeed table.
>
> Is that where you're at? And by 30" you're talking w i d e? If
> so, it must be an old machine so you might try http://www.owwm.com for
> more advice.
>
>
Myx gave you the solution in the first reply. The outfeed table is higher
than the cutters. It doesn't have to be by much, very little offset will do
it. So make your adjustments very accureate. What happens is that you start
off by cutting the depth you desire. But then the piece reaches the outfeed
table and has to rise up onto the table. At that instant you are still
cutting but now not at the depth you desire. As the piece continues through
the planer the weight you shift to the front of the piece forces the very
leading edge flat onto the outfeed table and lifts up the trailing edge to a
height that is above the cutters. Try drawing this out on paper and you will
see what is happening.
Joe....
"Mcgyver" <[email protected]> wrote in message
news:K3yub.91654$jy.29648@clgrps13...
> Hi, sorry 6" jointer, bed is 30" long. infeed is coplaner down to 10/1000
as
> best as I can get it with feeler gauges. I have set the knives dead level
> with the outfeed table. I'm confused by the 1' of no jointing at the end
of
> the cut. does this mean that the tail of the infeed table is
> raised/lowered? thanks
> "Caractacus Potts" <[email protected]> wrote in message
> news:[email protected]...
> >
> > "Mcgyver" <[email protected]> wrote in message
> > news:P_wub.91540$jy.57223@clgrps13...
> > > I'm tuning up a 30" jointer. outfeed table is cast and does not
> > adjust.
> > > I've adjustd the infeed table to as close as possible (i took the
> > infeed
> > > table to a machine shop for flatness verification). When I run 6'
> > long
> > > boards through, about 1 foot from the end I get no jointing (blades
> > lose
> > > contact with the wood). When I put 2 jointed boards together I have a
> > 1/16
> > > gap in the middle. any suggestions or tips on how to align this
> > thing.
> > > thanks
> > >
> >
> > When you say you've adjusted the infeed table as close as possible what
> > do you mean? Your knives should be adjusted to the outfeed table (dead
> > bang, gnat's ass level) and the infeed table should be adjusted to be
> > co-planer to the outfeed table.
> >
> > Is that where you're at? And by 30" you're talking w i d e? If
> > so, it must be an old machine so you might try http://www.owwm.com for
> > more advice.
> >
> >
>
>
The first step in setting up the table is to make sure that both in and
outfeed tables are absolutely level
with each other THROUGH THE ENTIRE length of both tables. Only then do you
align
the outfeed table with the blades. (After of course making sure that all
blades run at the same height!)
Hope this helps. It works for me
Paul Ellis
Another amateur trying to woodwork
Doug Miller <[email protected]> wrote in message
news:kJMub.11392$P%[email protected]...
> In article <[email protected]>, Bruce Rowen
<[email protected]> wrote:
> >I found that with my 6" Jet I had to have the outfeed table ever so
> >slightly lower that the blade
> >height. If I had everything dead even, I'd get the board rising above
> >the outfeed table
> >as it passed over the cutter. My only idea is that there is a degree of
> >spring back from the
> >cut (pine) which effectively reduces the cut depth.
>
> But did that result in the last *foot* of the board not touching the
knives,
> as the OP noted? IME, that leads to missing an inch or so at the end, but
an
> entire *foot*?
>
> I still think his tables aren't parallel.
>
> >
> >-Bruce
> >
> >
> >Mcgyver wrote:
> >>
> >> Hi, sorry 6" jointer, bed is 30" long. infeed is coplaner down to
10/1000 as
> >> best as I can get it with feeler gauges. I have set the knives dead
level
> >> with the outfeed table. I'm confused by the 1' of no jointing at the
end of
> >> the cut. does this mean that the tail of the infeed table is
> >> raised/lowered? thanks
> >>
> >
> >
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> >http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
> >-----== Over 100,000 Newsgroups - 19 Different Servers! =-----
>
> --
> Doug Miller (alphageek at milmac dot com)
>
> How come we choose from just two people to run for president and 50 for
Miss America?
In article <[email protected]>, Bruce Rowen <[email protected]> wrote:
>I found that with my 6" Jet I had to have the outfeed table ever so
>slightly lower that the blade
>height. If I had everything dead even, I'd get the board rising above
>the outfeed table
>as it passed over the cutter. My only idea is that there is a degree of
>spring back from the
>cut (pine) which effectively reduces the cut depth.
But did that result in the last *foot* of the board not touching the knives,
as the OP noted? IME, that leads to missing an inch or so at the end, but an
entire *foot*?
I still think his tables aren't parallel.
>
>-Bruce
>
>
>Mcgyver wrote:
>>
>> Hi, sorry 6" jointer, bed is 30" long. infeed is coplaner down to 10/1000 as
>> best as I can get it with feeler gauges. I have set the knives dead level
>> with the outfeed table. I'm confused by the 1' of no jointing at the end of
>> the cut. does this mean that the tail of the infeed table is
>> raised/lowered? thanks
>>
>
>
>-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
>http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
>-----== Over 100,000 Newsgroups - 19 Different Servers! =-----
--
Doug Miller (alphageek at milmac dot com)
How come we choose from just two people to run for president and 50 for Miss America?
sounds like your outfeed table is to high.
If you truly can not adjust it, perhaps the cutter head can be adjusted.
The most simple solution would be to loosen and reset the knives to the proper height.
30" jointer, nice drive by..you must have used a engine hoist or bobcat to remove the
infeed table....
Myx
"Mcgyver" <[email protected]> wrote in message news:P_wub.91540$jy.57223@clgrps13...
> I'm tuning up a 30" jointer. outfeed table is cast and does not adjust.
> I've adjustd the infeed table to as close as possible (i took the infeed
> table to a machine shop for flatness verification). When I run 6' long
> boards through, about 1 foot from the end I get no jointing (blades lose
> contact with the wood). When I put 2 jointed boards together I have a 1/16
> gap in the middle. any suggestions or tips on how to align this thing.
> thanks
>
>