Subject: Re: How to center mill turntable?

From: [email-masked] (Jonathan M. Elson)
Date: 23 Jul 1996 05:02:24 GMT

Theodore Henry Phares ([email-masked]) wrote:
: [email-masked] (John Ingham) writes:

: > 3. Align machine Z (spindle) axis to turn table Z axis.
: > 
: > Rough in the spindle to table alignment.... rotate the spindle and
: > indicator tip.... look for the circle created by the tip... set the

: What, exactly, is ment by "indicator tip?"  

You need to have a dial indicator, or better, a dial test indicator.
You should also get a spindle mount for the indicator.  You can then
align any cylindrical surface (inside or outside) to be concentric to
the machine spindle.  I struggled for years without one, and could never
do an adequate job of centering.  Now, I can do it in 2 minutes.