[TXFred]

I finished building the hover system today. I am pleased to say that it works perfectly. Thanks go to URGuys for the idea.

It only takes 30 PSI to float the tailstock. Once floating, it can be moved with finger pressure.

A couple of permanent modifications to the tailstock are needed. The existing grease fittings are 1/4-28. I drilled and tapped those holes to 1/8 NPT so I could use the stainless fittings that we have in the shop. If I ever need to remove the hover system, I can install 1/8 NPT grease fittings.

Four 10-32 holes need to be drilled and tapped for the mounting brackets.

The regulator, valve and gauge are from MSC. The gauge isn't necessary, but I like gauges. Be warned, the regulator I chose is a cheap pot metal casting. It's very easy to tear the threads out, so don't overtighten it.
Regulator 42007740
Ball valve 04480125
Gauge 56468515

I've shot some video, and will upload it later today. For now, here's some pictures.

Tailstock wheel removed for clarity.



Closeup of the regulator and valve.


Rear view.



Plumbing on right hand side.



Right side again, with the lathe in the home position.