THIS IS THE SPREADSHEET HE3D SHOULD HAVE MADE AVAILABLE FOR DOWNLOAD TO CALIBRATE IT’S DELTA PRINTERS.
Since most Delta Printers are made with common parts, this spreadsheet will probably work on others.
In the coming days I will post a walk-through for calibrating your Delta using Repetier-Host and Octoprint. I will also cover calibrating your Dual Extruder for your HE3D Delta Printer on makersteve.com
Just figured it's worth sharing here.
Here is my step-by-step for calibrating the HE3D K200 or K280