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Good Morning All:

Having trouble setting up a Homier 7X12 lathe recently
purchased. This lathe is turning a taper from tailstock to headstock
no matter how much adjustment I make to correct tailstock setover. Is
it possible that the tail and head are not set parallel to eachother?
Has anyone else run across the same difficulty? Any advice on this
problem, with methods to correct it would be greatly appreciated, as
this little unit appears to be a good value for the money. Best
regards, Nick

It seems unlikely to me that the HS is out of
alignment. The TS easily could be, but you can get it
close enough for most work by simply turning a point
onto a piece of stock using the compound and bringing
the point of a dead center mounted in the TS to meet
it (see photo).

What diameter stock are you turning and how are you
holding it?

Frank Hoose



--- ntdefeo <ntdefeo@...> wrote:

Good Morning All:

Having trouble setting up a Homier 7X12 lathe
recently
purchased. This lathe is turning a taper from
tailstock to headstock
no matter how much adjustment I make to correct
tailstock setover. Is
it possible that the tail and head are not set
parallel to eachother?
Has anyone else run across the same difficulty? Any
advice on this
problem, with methods to correct it would be greatly
appreciated, as
this little unit appears to be a good value for the
money. Best
regards, Nick



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Good Morning Frank,

I am turning 1/2" dia 6061 aluminum and 1/2" 12L14 stock. Using
a dial indicator on the carriage, I am seeing .010" reading from the
chuck (standard 3 jaw) to the ts, measuring against the rear of the
stock. On the top of the stock, I am seeing a 020" from the chuck to
the ts, with the live center bearing on the stock, or not. Is it
possible the hs is not correctly aligned with the bed, and ts height?
I am a former machinist, although that was many years ago, and am
just getting back into it as a hobby. I was thinking that either
shimming the hs to the ts height to correct the difference, and
perhaps some judicial filing of the hs base to correct the
parallelism to the bed. Any tricks you could provide would be greatly
appreciated. Best regards, Nick

Nick,
Was reading in an old PM Shop Notes last night a possible solution.
Buy yourself a piece of ground drill rod a touch over 10" long -
something which will go thru the spindle - 1/2" dia.?
Center in your chuck and center drill both ends. Mark a spot near both
ends with the marks 10" apart.
Put centers in both your spindle and tailstock and mount your test rod.
Mount a dial indicator in your tool post and ck the height on the rod
at both marks and then ck the side at both marks.
This will quickly tell you if your tailstock is too hi/lo, off to one
side or the other, or both. From there you will be able to know what is off.
Good Luck,
-=- Bob

Good Morning Bob:
I appreciate the quick response and will try this method. Should the ts prove to be too high, would it be better to shim the hs, or lower the ts with some careful filing of the base assembly? I realize some of the problem is due to the carriage assembly needing adjustment, and will tend to that issue prior to testing the hs/ts alignment. Thanks for the info. Sincerely, Nick
Bob Colquitt <wahsatch@...> wrote:Nick,
Was reading in an old PM Shop Notes last night a possible solution.
Buy yourself a piece of ground drill rod a touch over 10" long -
something which will go thru the spindle - 1/2" dia.?
Center in your chuck and center drill both ends. Mark a spot near both
ends with the marks 10" apart.
Put centers in both your spindle and tailstock and mount your test rod.
Mount a dial indicator in your tool post and ck the height on the rod
at both marks and then ck the side at both marks.
This will quickly tell you if your tailstock is too hi/lo, off to one
side or the other, or both. From there you will be able to know what is off.
Good Luck,
-=- Bob

Date: Wed, 30 Oct 2002 17:16:31 -0000
From: "ntdefeo" <ntdefeo@...>
Subject: Correcting Lathe accuracy

Good Morning All:

Having trouble setting up a Homier 7X12 lathe recently
purchased. This lathe is turning a taper from tailstock to headstock
no matter how much adjustment I make to correct tailstock setover. Is
it possible that the tail and head are not set parallel to eachother?
Has anyone else run across the same difficulty? Any advice on this
problem, with methods to correct it would be greatly appreciated, as
this little unit appears to be a good value for the money. Best
regards, Nickc

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Here's a link to an article by Jose Rodriguez that may
be helpful. Also some info by Rick Kruger




--- ntdefeo <ntdefeo@...> wrote:

Good Morning Frank,

I am turning 1/2" dia 6061 aluminum and 1/2"
12L14 stock. Using
a dial indicator on the carriage, I am seeing .010"
reading from the
chuck (standard 3 jaw) to the ts, measuring against
the rear of the
stock. On the top of the stock, I am seeing a 020"
from the chuck to
the ts, with the live center bearing on the stock,
or not. Is it
possible the hs is not correctly aligned with the
bed, and ts height?
I am a former machinist, although that was many
years ago, and am
just getting back into it as a hobby. I was thinking
that either
shimming the hs to the ts height to correct the
difference, and
perhaps some judicial filing of the hs base to
correct the
parallelism to the bed. Any tricks you could provide
would be greatly
appreciated. Best regards, Nick






-- In 7x12minilathe@y..., Frank Hoose <fhoose@y...>
wrote:

It seems unlikely to me that the HS is out of
alignment. The TS easily could be, but you can get

it

close enough for most work by simply turning a

point

onto a piece of stock using the compound and

bringing

the point of a dead center mounted in the TS to

meet

it (see photo).

What diameter stock are you turning and how are

you

holding it?

Frank Hoose



--- ntdefeo <ntdefeo@y...> wrote:

Good Morning All:

Having trouble setting up a Homier 7X12

lathe

recently
purchased. This lathe is turning a taper from
tailstock to headstock
no matter how much adjustment I make to correct
tailstock setover. Is
it possible that the tail and head are not set
parallel to eachother?
Has anyone else run across the same difficulty?

Any

advice on this
problem, with methods to correct it would be

greatly

appreciated, as
this little unit appears to be a good value for

the

money. Best
regards, Nick



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to:

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