M Print or Replicator G

[musician1928]

I'm trying to print a model with PLA in the left extruder and PVA in the right to use as support.  I've had no luck so far but I am getting interesting results from my experiments.  Is there anyone out there who can share their setting or method to print a model with one extruder and the other extruder for support?

Thanks.

Cheers,

John