I have had a lot of success with my orchids. I am planning on posting a new thread because I actually just got my first new stem / flowers from the Orchid in my Nosy Be's cage! I consider that the confirmation of success as I have had difficulty getting a second bloom from store bought orchids kept in their original pot.
All I really do is make sure one of the misting nozzles of my MisKing is directly pointed at the orchid. In another cage, I am having similar success by having the dripper drip directly on the roots. I have found the key to success is to give the orchid enough hydration that the roots are constantly a healthy green. I just have my orchids secured to the screen with a zip tie, no substrate or cork.