Punching to set up Elbows
Here is a nice simple combo used to set up a elbow attack follow up. As with all set up techniques you will need to see how your opponent reacts to an attack to use a follow up.
For example, if my opponent runs to his/her left every time I throw a left hook, I might try a right kick or right hook punch follow up, I probally wouldn't try a thrust kick. So as with any technique practice and timing are very important.
Here is a video of Nate and I practicing this combo back & forth in training. the step by step is below: