Note that WorkerDrone and others created the post file. I just hacked in some useful features. Also note that I have only used it with SD card readers and have not tried it with Repetier Host.
As many of us have said before, Fusion 360 CAD and CAM is very powerful, but it does have a really steep learning curve. ESTLCAM looks great for 2D cutting paths, engraving and laser etching. My son wants to do some more complicated 3D milling for guitar bodies so I stuck with Fusion 360.