Adaptive Start G-code for Dual Extruder Printers with Cura

Choosing a reliable start G-code that primes a dual extruder printer is difficult. This post explains the different extruder prime techniques and how my [adaptive priming start G-code](https://github.com/ansonl/DXU/blob/master/AL-DXUv2/start-end-gcode/cura-adaptive-start-gcode-dual-extruder.gcode) for Cura incorporates these techniques for dual nozzle printers.