I am having difficulties with setting up to create moldings. My
conversations with Jet tech support seem to be falling on deaf ears.
They don't think they have a problem. I think there are depth
limitations that are not advertised in the manual or sales
literature. I would appreciate anybody out there who has used this
beast getting in touch with me to help me resolve my issues so I can
get some work done before I destroy the machine or me!

Len

wrote in message
...
I am having difficulties with setting up to create moldings. My
conversations with Jet tech support seem to be falling on deaf ears.
They don't think they have a problem. I think there are depth
limitations that are not advertised in the manual or sales
literature. I would appreciate anybody out there who has used this
beast getting in touch with me to help me resolve my issues so I can
get some work done before I destroy the machine or me!

Len

I've got one of those machines... What do you mean by depth limitations?

John

On Jan 2, 7:42*pm, "John Grossbohlin"
wrote:
wrote in message

...

I *am having difficulties with setting up to create moldings. *My
conversations with Jet tech support seem to be falling on deaf ears.
They don't think they have a problem. *I think there are depth
limitations that are not advertised in the manual or sales
literature. *I would appreciate anybody out there who has used this
beast getting in touch with me to help me resolve my issues so I can
get some work done before I destroy the machine or me!

Len

I've got one of those machines... What do you mean by depth limitations?

John

John,

Thanks for responding. The problem relates to setting the infeed
and outfeed rollers
during the molding process. I have placed a .pdf file on my web
site. It contains
two pages describing the problem along with figures of their
recommendation and my
concept - which could be wrong because I am missing something in the
translation. I just
don't see how you can set the rollers independently of the depth of
the knives and
still do thing like a skim cut.

You can get to the file by using your browser to go to the page:

https://netfiles.uiuc.edu/l-lopez

Double click on the page called "planer.pdf."

On 1/3/2012 1:37 PM, wrote:
....

You can get to the file by using your browser to go to the page:

https://netfiles.uiuc.edu/l-lopez
,,,

password protected it appears...

--

On Jan 3, 2:19*pm, dpb wrote:
On 1/3/2012 1:37 PM, wrote:
...

* * * You can get to the file by using your browser to go to the page:

* * * * * * * * * *https://netfiles.uiuc.edu/l-lopez

,,,

password protected it appears...

--

Try again at: http://netfiles.uiuc.edu/l-lopez/www

I'm prompted for a log-in... is it something you can upload to
alt.binaries.pictures.woodworking ??


wrote in message
...
On Jan 2, 7:42 pm, "John Grossbohlin"
wrote:
wrote in message

...

I am having difficulties with setting up to create moldings. My
conversations with Jet tech support seem to be falling on deaf ears.
They don't think they have a problem. I think there are depth
limitations that are not advertised in the manual or sales
literature. I would appreciate anybody out there who has used this
beast getting in touch with me to help me resolve my issues so I can
get some work done before I destroy the machine or me!

Len

I've got one of those machines... What do you mean by depth limitations?

John

John,

Thanks for responding. The problem relates to setting the infeed
and outfeed rollers
during the molding process. I have placed a .pdf file on my web
site. It contains
two pages describing the problem along with figures of their
recommendation and my
concept - which could be wrong because I am missing something in the
translation. I just
don't see how you can set the rollers independently of the depth of
the knives and
still do thing like a skim cut.

You can get to the file by using your browser to go to the page:

https://netfiles.uiuc.edu/l-lopez

Double click on the page called "planer.pdf."

On Jan 3, 4:30*pm, "John Grossbohlin"
wrote:
I'm prompted for a log-in... is it something you can upload to
alt.binaries.pictures.woodworking *??

wrote in message

...
On Jan 2, 7:42 pm, "John Grossbohlin"









wrote:
wrote in message

....

I am having difficulties with setting up to create moldings. My
conversations with Jet tech support seem to be falling on deaf ears.
They don't think they have a problem. I think there are depth
limitations that are not advertised in the manual or sales
literature. I would appreciate anybody out there who has used this
beast getting in touch with me to help me resolve my issues so I can
get some work done before I destroy the machine or me!

Len

I've got one of those machines... What do you mean by depth limitations?

John

John,

* * *Thanks for responding. *The problem relates to setting the infeed
and outfeed rollers
during the molding process. * I have placed a .pdf file on my web
site. *It contains
two pages describing the problem along with figures of their
recommendation and my
concept - which could be wrong because I am missing something in the
translation. I just
don't see how you can set the rollers independently of the depth of
the knives and
still do thing like a skim cut.

* * *You can get to the file by using your browser to go to the page:

* * * * * * * * *https://netfiles.uiuc.edu/l-lopez

* * *Double click on the page called "planer.pdf."

Sorry about that - I screwed up! Try: https://netfiles.uiuc.edu/l-lopez/www

Len

On 1/3/2012 4:41 PM, wrote:
....
Thanks for responding. The problem relates to setting the infeed
and outfeed rollers
during the molding process. I have placed a .pdf file on my web
site. It contains
two pages describing the problem along with figures of their
recommendation and my
concept - which could be wrong because I am missing something in the
translation. I just
don't see how you can set the rollers independently of the depth of
the knives and
still do thing like a skim cut.
....

Your second interpretation is proper...I'd basically ignore the manual
and set it up to do what is needed.

The only real problem that you can run into is allowing so much material
in at one pass that you either hit the cutter head itself or stick a
knife from lack of power.

Generally, a full-size moulder makes the full cut in one pass but may
have more than one set of cutters instead of only the one. Given that,
for deep profiles in hard wood you may find it necessary to do more than
a single pass.

I like the old Deta/Powermatic feature--they had a solid stationary bar
that was an irrevocable thickness of the material presented to the
knives--more than that was prevented from entering. The bars were round
and mounted on an eccentric so could adjust them some, but not
limitlessly....

--

--

Len,

I agree... you are fouled up conceptually! Not to worry... you are on the
right track.

When they say "maximum height of the feed rollers must not be more than
5/16" below the height of the cutterhead" I agree that as shown in the
graphic that you'd take a 3/8" cut on the first pass. However, that is the
MAXIMUM height. There is nothing that says you cannot lower the infeed
roller, as suggested in the second graphic, to take a lighter cut. However,
as actually shown in the second graphic you wouldn't cut anything as the
cutter is even with the top of the wood...

In practice, starting with your second graphic set up, if you raise the
infeed roller 1/6" and raise the bed 1/16" you'd take a 1/16" cut. If you
had to remove 3/8" to get the full profile that would take 6 passes raising
the bed 1/16" each time... not really a good idea. Unless you are cutting
wide moldings in hard wood (physically, not in terms of leaves) you can
typically cut the whole molding in one pass. Seems to me that Jet recommends
making one pass also as with subsequent passes you'd have very little wood
for the feed rollers to grab (e.g., only the peaks).

Between the roller height and bed height adjustments you can use any of the
profiles Jet (or Grizzley) offers.

Hope that helps... playing a bit might make it clearer!

John




wrote in message
...
On Jan 3, 4:30 pm, "John Grossbohlin"
Thanks for responding. The problem relates to setting the infeed
and outfeed rollers
during the molding process. I have placed a .pdf file on my web
site. It contains
two pages describing the problem along with figures of their
recommendation and my
concept - which could be wrong because I am missing something in the
translation. I just
don't see how you can set the rollers independently of the depth of
the knives and
still do thing like a skim cut.

You can get to the file by using your browser to go to the page:

https://netfiles.uiuc.edu/l-lopez

Double click on the page called "planer.pdf."

Sorry about that - I screwed up! Try:
https://netfiles.uiuc.edu/l-lopez/www

Len

On Jan 3, 5:32*pm, "John Grossbohlin"
wrote:
Len,

I agree... you are fouled up conceptually! Not to worry... you are on the
right track.

When they say "maximum height of the feed rollers must not be more than
*5/16" below the height of the cutterhead" I agree that as shown in the
graphic that you'd take a 3/8" cut on the first pass. However, that is the
MAXIMUM height. There is nothing that says you cannot lower the infeed
roller, as suggested in the second graphic, to take a lighter cut. However,
as actually shown in the second graphic you wouldn't cut anything as the
cutter is even with the top of the wood...

In practice, starting with your second graphic set up, if you raise the
infeed roller 1/6" and raise the bed 1/16" you'd take a 1/16" cut. *If you
had to remove 3/8" to get the full profile that would take 6 passes raising
the bed 1/16" each time... not really a good idea. Unless you are cutting
wide moldings in hard wood (physically, not in terms of leaves) you can
typically cut the whole molding in one pass. Seems to me that Jet recommends
making one pass also as with subsequent passes you'd have very little wood
for the feed rollers to grab (e.g., only the peaks).

Between the roller height and bed height adjustments you can use any of the
profiles Jet (or Grizzley) offers.

Hope that helps... playing a bit might make it clearer!

John

wrote in message

...
On Jan 3, 4:30 pm, "John Grossbohlin"









Thanks for responding. The problem relates to setting the infeed
and outfeed rollers
during the molding process. I have placed a .pdf file on my web
site. It contains
two pages describing the problem along with figures of their
recommendation and my
concept - which could be wrong because I am missing something in the
translation. I just
don't see how you can set the rollers independently of the depth of
the knives and
still do thing like a skim cut.

You can get to the file by using your browser to go to the page:

https://netfiles.uiuc.edu/l-lopez

Double click on the page called "planer.pdf."

Sorry about that - I screwed up! * Try:https://netfiles.uiuc.edu/l-lopez/www

Len

I just happened to look at the Grizzly 13 inch planer on-line.
It appears to function identically to the Jet one. It just isn't a
closed base. The Grizzly manual that is on-line addresses the problem
in much better detail than the Jet manual starting on page 21.
Basically, they set the rollers taking the depth of the knives into
account. I will review this and try again.

Thanks all for comments

Len

On 1/4/2012 10:52 AM, wrote:
....

I just happened to look at the Grizzly 13 inch planer on-line.
It appears to function identically to the Jet one. It just isn't a
closed base. The Grizzly manual that is on-line addresses the problem
in much better detail than the Jet manual starting on page 21.
Basically, they set the rollers taking the depth of the knives into
account. I will review this and try again.
....

I think you're over-thinking here...set the depth as required for the
profile and the pressure rollers as required to feed the material.
That's all there is to it.

--

On Jan 4, 12:15*pm, dpb wrote:
On 1/4/2012 10:52 AM, wrote:
...

* * *I just *happened to look at the Grizzly 13 inch planer on-line.
It appears to function identically to the Jet one. *It just isn't a
closed base. *The Grizzly manual that is on-line addresses the problem
in much better detail than the Jet manual starting on page 21.
Basically, they set the rollers taking the depth of the knives into
account. *I will review this and try again.

...

I think you're over-thinking here...set the depth as required for the
profile and the pressure rollers as required to feed the material.
That's all there is to it.

--

I may be, but the manual that came from JET specifically said
not to change the pressure springs. The manual for the Grizzly says
you should adjust the pressure after setting the roller height. I just
printed the Grizzly manual and will read it more closely today. The
next obvious question is "Is the Grizzly close enough to the Jet so
that I can use the Grizzly instructions"
I suspect yes. I am also beginning to think Jet set up one set of
instructions assuming
everybody was a "sheep" and would follow them blindly.

On 1/4/2012 3:08 PM, wrote:
On Jan 4, 12:15 pm, wrote:
....

I think you're over-thinking here...set the depth as required for the
profile and the pressure rollers as required to feed the material.
That's all there is to it.
....
I may be, but the manual that came from JET specifically said
not to change the pressure springs. The manual for the Grizzly says
you should adjust the pressure after setting the roller height. I just
printed the Grizzly manual and will read it more closely today. The
next obvious question is "Is the Grizzly close enough to the Jet so
that I can use the Grizzly instructions"
....

Well, if they're ("they" being the pressure rollers here) set correctly
to begin with, you really shouldn't have to adjust them for any
operation. I presume that's why Jet says not to...

The bed position relative to the circle the cutterhead makes (including
knives, of course, the only dimension that is of any interest) controls
how much material is taken off and the infeed rollers are at a fixed
height relative to the top surface of the material to provide the
downward force necessary to hold the material from chattering and
provide the driving force to push the material through the planer.

So, they really shouldn't ever have to be adjusted at all once they're
right other than if need a tad more pressure for some heavy work.

I'm sure if you can make more sense of the Griz verbiage it's good
enough; as you say, there's no difference between the machines of any
consequence as far as operation.

--

"dpb" wrote in message ...
On 1/4/2012 3:08 PM, wrote:
On Jan 4, 12:15 pm, wrote:
...

I think you're over-thinking here...set the depth as required for the
profile and the pressure rollers as required to feed the material.
That's all there is to it.
...
I may be, but the manual that came from JET specifically said
not to change the pressure springs. The manual for the Grizzly says
you should adjust the pressure after setting the roller height. I just
printed the Grizzly manual and will read it more closely today. The
next obvious question is "Is the Grizzly close enough to the Jet so
that I can use the Grizzly instructions"
...

Well, if they're ("they" being the pressure rollers here) set correctly to
begin with, you really shouldn't have to adjust them for any operation. I
presume that's why Jet says not to...

The bed position relative to the circle the cutterhead makes (including
knives, of course, the only dimension that is of any interest) controls
how much material is taken off and the infeed rollers are at a fixed
height relative to the top surface of the material to provide the downward
force necessary to hold the material from chattering and provide the
driving force to push the material through the planer.

So, they really shouldn't ever have to be adjusted at all once they're
right other than if need a tad more pressure for some heavy work.

I'm sure if you can make more sense of the Griz verbiage it's good enough;
as you say, there's no difference between the machines of any consequence
as far as operation.

--

I generally concur with this when dealing with a relatively new machine with
relatively new cutters. There are a few exceptions that may show up in the
future for Len. One is that some tinkering may be needed if cutters are
resharpened as the relationship between the infeed roller and a fully seated
cutter is altered. Also, if you ignore the one pass recommendation and take
multiple passes, the infeed roller may need to be adjusted lower due to the
limited contact area with the molding profile. Otherwise this is right on!

John

On 1/4/2012 8:04 PM, John Grossbohlin wrote:

"dpb" wrote in message
...
On 1/4/2012 3:08 PM, wrote:
On Jan 4, 12:15 pm, wrote:
...

I think you're over-thinking here...set the depth as required for the
profile and the pressure rollers as required to feed the material.
That's all there is to it.
...
I may be, but the manual that came from JET specifically said
not to change the pressure springs. The manual for the Grizzly says
you should adjust the pressure after setting the roller height. I just
printed the Grizzly manual and will read it more closely today. The
next obvious question is "Is the Grizzly close enough to the Jet so
that I can use the Grizzly instructions"
...

Well, if they're ("they" being the pressure rollers here) set
correctly to begin with, you really shouldn't have to adjust them for
any operation. I presume that's why Jet says not to...

The bed position relative to the circle the cutterhead makes
(including knives, of course, the only dimension that is of any
interest) controls how much material is taken off and the infeed
rollers are at a fixed height relative to the top surface of the
material to provide the downward force necessary to hold the material
from chattering and provide the driving force to push the material
through the planer.

So, they really shouldn't ever have to be adjusted at all once they're
right other than if need a tad more pressure for some heavy work.

I'm sure if you can make more sense of the Griz verbiage it's good
enough; as you say, there's no difference between the machines of any
consequence as far as operation.

--

I generally concur with this when dealing with a relatively new machine
with relatively new cutters. There are a few exceptions that may show up
in the future for Len. One is that some tinkering may be needed if
cutters are resharpened as the relationship between the infeed roller
and a fully seated cutter is altered. Also, if you ignore the one pass
recommendation and take multiple passes, the infeed roller may need to
be adjusted lower due to the limited contact area with the molding
profile. Otherwise this is right on!

Indeed; as said earlier, our OP is making more of this than seems
warranted. I think he should just start throwing some material through
it and get on w/ life...

--

On Jan 4, 8:48*pm, dpb wrote:
On 1/4/2012 8:04 PM, John Grossbohlin wrote:











"dpb" wrote in message
...
On 1/4/2012 3:08 PM, wrote:
On Jan 4, 12:15 pm, wrote:
...

I think you're over-thinking here...set the depth as required for the
profile and the pressure rollers as required to feed the material.
That's all there is to it.
...
I may be, but the manual that came from JET specifically said
not to change the pressure springs. The manual for the Grizzly says
you should adjust the pressure after setting the roller height. I just
printed the Grizzly manual and will read it more closely today. The
next obvious question is "Is the Grizzly close enough to the Jet so
that I can use the Grizzly instructions"
...

Well, if they're ("they" being the pressure rollers here) set
correctly to begin with, you really shouldn't have to adjust them for
any operation. I presume that's why Jet says not to...

The bed position relative to the circle the cutterhead makes
(including knives, of course, the only dimension that is of any
interest) controls how much material is taken off and the infeed
rollers are at a fixed height relative to the top surface of the
material to provide the downward force necessary to hold the material
from chattering and provide the driving force to push the material
through the planer.

So, they really shouldn't ever have to be adjusted at all once they're
right other than if need a tad more pressure for some heavy work.

I'm sure if you can make more sense of the Griz verbiage it's good
enough; as you say, there's no difference between the machines of any
consequence as far as operation.

--

I generally concur with this when dealing with a relatively new machine
with relatively new cutters. There are a few exceptions that may show up
in the future for Len. One is that some tinkering may be needed if
cutters are resharpened as the relationship between the infeed roller
and a fully seated cutter is altered. Also, if you ignore the one pass
recommendation and take multiple passes, the infeed roller may need to
be adjusted lower due to the limited contact area with the molding
profile. Otherwise this is right on!

Indeed; as said earlier, our OP is making more of this than seems
warranted. *I think he should just start throwing some material through
it and get on w/ life...

--

After reading and following the Grizzly instructions on page 25
all is well. I "threw" about 100 feet through it today with excellent
results.

Thanks all fro the advice and support.

Len

On 1/5/2012 3:12 PM, wrote:
....

After reading and following the Grizzly instructions on page 25
all is well. I "threw" about 100 feet through it today with excellent
results.
....

Kewl and no problem...

--

wrote in message
...
On Jan 4, 8:48 pm, dpb wrote:

After reading and following the Grizzly instructions on page 25
all is well. I "threw" about 100 feet through it today with excellent
results.

Thanks all fro the advice and support.

Len

Glad to hear it worked out!

John

wrote in message
...
On Jan 4, 8:48 pm, dpb wrote:
On 1/4/2012 8:04 PM, John Grossbohlin wrote:



After reading and following the Grizzly instructions on page 25
all is well. I "threw" about 100 feet through it today with excellent
results.

Thanks all fro the advice and support.

Len

It occurs to me that if you ever do use hard wood (not leaves but toughness)
you could run straight, but narrow, knives through the stock to remove bulk
before running it through with the molding knives. That way a single pass
would be possible without straining the machine or knives and retain enough
surface area for the infeed rollers to grab. This approach wouldn't be much
different from how the job would have been done in the past with plough
planes first and then molding planes.

John

On 1/6/2012 12:35 PM, John Grossbohlin wrote:
....

It occurs to me that if you ever do use hard wood (not leaves but
toughness) you could run straight, but narrow, knives through the stock
to remove bulk before running it through with the molding knives. That
way a single pass would be possible without straining the machine or
knives and retain enough surface area for the infeed rollers to grab.
This approach wouldn't be much different from how the job would have
been done in the past with plough planes first and then molding planes.

Indeed...good point.

I've done the basic idea by using the table saw to cut
strategically-placed length-wise dadoes in essence for the purpose when
using a light moulder of this sort. (Comes to me now would have been
easier to use the moulding head cutter on the RAS to have done same as
your suggestion... )

--