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Re: Lathe Accuracy


 

Nick,
which way is it tapered, small end to the headstock or tailstock? If
your lathe is bolted down that can twist the bed and swpping parts
will not help.

Try loosening the bolts holding down the tailstock end and take
another cut. If it changes the bed was twisted by the bolts. Then
you shim it so when it is tightened down the cuts are true without a
taper.

Bob

On 27 Nov 2002, at 15:23, ntdefeo wrote:

Good Morning:

Finally received the new HS assembly from Homier, and carefully
swapped out the internals from the original. After installing
the "new" hs, and squaring it to the bed, I reinstalled the chuck,
and proceeded to chuck up a 1/2" 12L14 shaft to test the assembly.
Checking the hs/ts height, showed them to be in good alignment. Took
a .010" pass off the rod without holding the end in the ts, and even
taking a short cut 2" from the hs produced a taper. Am wondering if
the bed is twisted, or if I should just scrap this unit for a new
one. If anyone else has run across this situation, I would be
interested in hearing your thoughts/comments on correcting this
problem. Best regards, Nick

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