Has anyone here set up a CNC fourth axis with a strong (rigid) tailstock? That is to say a tailstock that rotates and uses a chuck like the headstock. I'm thinking about doing this. I understand the alignment must be perfect. Any posts on the subject? I did a few searches and found nothing. Has anyone done this either DIY or with commercially bought parts?
Here's an example of one available commercially.
Strong Tailstocks | Strong Rotary Table Tailstocks