your right Tim I just tried it in my lathe turns ok no vibration but when I
turn the piece around no matter what I do it wont run true
I even turned the centre point true in the wood lathe first but it still
runs out when I turn it around
Back to the drawing board looks like I will have to machine one like you did
from scratch to get every thing running true
this spur drive of mine is ok if you place the same piece in the same way
each time and never turn it around
but we need one that you can transfer work from the lathe to the legacy and
back again.
I guess mine has its use if you have heaps of the same thing to turn on the
legacy and not enough hubs to go round and you don't wish to unscrew and
screw up hubs all day
Bill
----- Original Message -----
From: "Tim Krause" <[email protected]>
To: <[email protected]>
Sent: Saturday, April 23, 2011 10:56 AM
Subject: Re: New Spur Drive
Hi Bill,
I like the idea in theory, but the hub system does not run true.
Originally
I installed the Legacy drive stub in my lathe and just used the stock
drive
hubs. Both of my drive stubs and hubs had some vibration and the part was
not cutting true in the lathe. There was really no way to make it right.
I
even faced the front of both of my drive stubs to try and get the hubs to
seat perpendicular to the spindle axis and that helped but not good enough
for what I was doing at the moment.
Did I ever show the group my faced, tapped and reamed drive hub? I faced
the front to get rid of the excess weld ( and make the face true), tapped
a
10-32 thread in the center about an 1" deep and made a 1/4" reamed hole in
the center that is about 1/2" deep. It allows me to mount a piece
perfectly
in the center using a 1/4" steel dowel pin. The tapped hole is used to
hold
custom plates for hollow turning.
-Tim
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