[modeleng] Re: Locking a lathe spindle

Ron,

I presume that engaging the back gear without releasing the normal drive 
still has too much backlash?

As an alternative, can you make an expanding device to grip inside the 
spindle - like the sort of thing people make for winding the chuck round by 
hand? There may be a chance to put an arm on it at the changewheel end and 
lock that to something.

JohnP
----- Original Message ----- 
From: "Ron Head" <ron.head@xxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Wednesday, October 31, 2007 7:56 PM
Subject: [modeleng] Locking a lathe spindle


Calling all Myford owners....

Does anyone have any good ideas for positively locking the spindle, while I
carry out a slotting operation?  The Super 7 comes with a spindle lock of
course, but this only locks in one position, and in any case there is a
small amount of backlash with the lock engaged.  What I am thinking of is
some sort of friction device, which can effectively hold the spindle in any
position.

Anybody been there before?

Regards
Ron
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