Why can't I get the "wobble" out.
 

For some reason I always seem to have a very slight wobble in my work. For example, I have just started turning a pepper grinder. So, I turned a tenon on one end and put it in my chuck. I bring up the tail stock to keep nice even pressure on the piece while I tighten the jaws. Now I turn down the blank to where it it is a cylinder and should be true. But even with the tail stock in I experience this very slight wobble. I mean if I bring the tool rest up and take a tool, say a skew, and bring it closer to the piece it will start hitting it unevenly, sort of a tick, tick, etc. And no matter what I take off it still does this. Could I have an issue with my lathe? It's a Jet 1014.

_jim

Why can't I get the "wobble" out.
 

jtpryan wrote:
For some reason I always seem to have a very slight wobble in my work. For example, I have just started turning a pepper grinder. So, I turned a tenon on one end and put it in my chuck. I bring up the tail stock to keep nice even pressure on the piece while I tighten the jaws. Now I turn down the blank to where it it is a cylinder and should be true. But even with the tail stock in I experience this very slight wobble. I mean if I bring the tool rest up and take a tool, say a skew, and bring it closer to the piece it will start hitting it unevenly, sort of a tick, tick, etc. And no matter what I take off it still does this. Could I have an issue with my lathe? It's a Jet 1014.

_jim

Have you checked that the tailstock is aligned with the headstock?

--
G.W. Ross

Megabyte: A nine course dinner.

Why can't I get the "wobble" out.
 

In article ,
"G. Ross" wrote:

jtpryan wrote:
For some reason I always seem to have a very slight wobble in my work. For
example, I have just started turning a pepper grinder. So, I turned a
tenon on one end and put it in my chuck. I bring up the tail stock to keep
nice even pressure on the piece while I tighten the jaws. Now I turn down
the blank to where it it is a cylinder and should be true. But even with
the tail stock in I experience this very slight wobble. I mean if I bring
the tool rest up and take a tool, say a skew, and bring it closer to the
piece it will start hitting it unevenly, sort of a tick, tick, etc. And no
matter what I take off it still does this. Could I have an issue with my
lathe? It's a Jet 1014.

_jim

Have you checked that the tailstock is aligned with the headstock?

Try putting a piece in the chuck and not using the tailstock. If you
still get the wobble, check the headstock bearings, or try turning
something between centers without the chuck, in case its the chuck.

Why can't I get the "wobble" out.
 

That is a good hint - tapers are made with offset tailstocks

Is your lathe level ? or is the bed twisted ? Put a level
on the ways at the head and tail - then lengthwise.

Jack up a leg or two to make it level. Wait a week or two and
check again as the twist starts to come out - might need adjusting.

Martin - both metal and wood lathes.

On 10/12/2012 4:28 PM, G. Ross wrote:
jtpryan wrote:
For some reason I always seem to have a very slight wobble in my
work. For example, I have just started turning a pepper grinder. So,
I turned a tenon on one end and put it in my chuck. I bring up the
tail stock to keep nice even pressure on the piece while I tighten the
jaws. Now I turn down the blank to where it it is a cylinder and
should be true. But even with the tail stock in I experience this
very slight wobble. I mean if I bring the tool rest up and take a
tool, say a skew, and bring it closer to the piece it will start
hitting it unevenly, sort of a tick, tick, etc. And no matter what I
take off it still does this. Could I have an issue with my lathe?
It's a Jet 1014.

_jim

Have you checked that the tailstock is aligned with the headstock?

Why can't I get the "wobble" out.
 

On Friday, October 12, 2012 5:28:12 PM UTC-4, G. Ross wrote:
jtpryan wrote:

For some reason I always seem to have a very slight wobble in my work. For example, I have just started turning a pepper grinder. So, I turned a tenon on one end and put it in my chuck. I bring up the tail stock to keep nice even pressure on the piece while I tighten the jaws. Now I turn down the blank to where it it is a cylinder and should be true. But even with the tail stock in I experience this very slight wobble. I mean if I bring the tool rest up and take a tool, say a skew, and bring it closer to the piece it will start hitting it unevenly, sort of a tick, tick, etc. And no matter what I take off it still does this. Could I have an issue with my lathe? It's a Jet 1014.



_jim



Have you checked that the tailstock is aligned with the headstock?



--

G.W. Ross



Megabyte: A nine course dinner.

How do I do that? Just bring the two together and see if the points meet? If they aren't, how is it adjusted?

I'll check the other points today.

Thanks,
Jim

Why can't I get the "wobble" out.
 

jtpryan wrote:
On Friday, October 12, 2012 5:28:12 PM UTC-4, G. Ross wrote:
jtpryan wrote:

For some reason I always seem to have a very slight wobble in my work. For example, I have just started turning a pepper grinder. So, I turned a tenon on one end and put it in my chuck. I bring up the tail stock to keep nice even pressure on the piece while I tighten the jaws. Now I turn down the blank to where it it is a cylinder and should be true. But even with the tail stock in I experience this very slight wobble. I mean if I bring the tool rest up and take a tool, say a skew, and bring it closer to the piece it will start hitting it unevenly, sort of a tick, tick, etc. And no matter what I take off it still does this. Could I have an issue with my lathe? It's a Jet 1014.



_jim



Have you checked that the tailstock is aligned with the headstock?



--

G.W. Ross



Megabyte: A nine course dinner.

How do I do that? Just bring the two together and see if the points meet? If they aren't, how is it adjusted?

I'll check the other points today.

Thanks,
Jim

There should be a bolt on the bottom of the tailstock. Loosen it and
get the points in alignment, then tighten the bolt. If it gets out
often, you can buy an alignment tool which has a Morse taper on each
end. Loosen the bolt and slide the tailstock up so that the tool
holds it in alignment, then tighten the bolt.

Some lathes may have another method for holding the tailstock in
alignment--I've only owned three so cannot say about the many other
brands.

--
G.W. Ross

If we can build a space shuttle, why
can't we build a decent mattress handle?

Why can't I get the "wobble" out.
 

On Tue, 16 Oct 2012 10:44:27 -0400, "G. Ross"
wrote:

On that Jet lathe, put your spur and revolving center in as if you
were going to surn a short spindle....
With the points about 1/2" apart, slowly crank the tailsock out until
thepoints are almst touching.. (I like them about a paper thickness
apart)
If they are not perfectly point to point, first check the adjustment
on your swivel lock pin on the headstock...
All this is covered in your manual..If you've misplaced yours let me
know and I'll pull mine out for specifics..

jtpryan wrote:
On Friday, October 12, 2012 5:28:12 PM UTC-4, G. Ross wrote:
jtpryan wrote:

For some reason I always seem to have a very slight wobble in my work. For example, I have just started turning a pepper grinder. So, I turned a tenon on one end and put it in my chuck. I bring up the tail stock to keep nice even pressure on the piece while I tighten the jaws. Now I turn down the blank to where it it is a cylinder and should be true. But even with the tail stock in I experience this very slight wobble. I mean if I bring the tool rest up and take a tool, say a skew, and bring it closer to the piece it will start hitting it unevenly, sort of a tick, tick, etc. And no matter what I take off it still does this. Could I have an issue with my lathe? It's a Jet 1014.



_jim



Have you checked that the tailstock is aligned with the headstock?



--

G.W. Ross



Megabyte: A nine course dinner.

How do I do that? Just bring the two together and see if the points meet? If they aren't, how is it adjusted?

I'll check the other points today.

Thanks,
Jim

There should be a bolt on the bottom of the tailstock. Loosen it and
get the points in alignment, then tighten the bolt. If it gets out
often, you can buy an alignment tool which has a Morse taper on each
end. Loosen the bolt and slide the tailstock up so that the tool
holds it in alignment, then tighten the bolt.

Some lathes may have another method for holding the tailstock in
alignment--I've only owned three so cannot say about the many other
brands.