Just found this topic.
Seems no one has succeeded yet… but I can’t see why it wouldn’t be possible. Vegan gluten free pasta can be bought commercially (I know, I have plenty different varieties in my cupboard right now) so gluten and eggs are not necessary for dry pasta.
My favourites are made from brown rice, or buckwheat, but I’ve also got some made from corn. I’ve never seen pasta made with any kind of powdered protein isolate though.