MOGLICE help!

What kind of moglice should I use to replace the brass feed nuts on
my sherline(like seen in the "fun with moglice"folder in the photo
section.

And what kind of moglice would be suitable for using as a linear
bearing material(I have almost completed a cnc (moving gantry)
machine and was planing to use delrin for the gliders on the ways but
casting it sounds....better(larger surface area etc.(EASIER)


San