Hi just wanted to update about my recent project CNC ,,i used tb6600 for nema23 2.6amp stepper.. initialy it works excellent and after few runs it starts turn off the driver by itself during operation and it was driving me nuts... After lots of research tweaking dutycycle,load adding extra 4 fans for each driver .. even checked with reprap emf calculator but no use then i started to wonder why cnc sheld and dsp controllers don't use tb6600.... so i replaced the driver with tb6560 since I don't have money to buy dm556.well now it's working excellent ... I findout this tb6600 is highly overengineerd and causing issues...if you found it helpful please back me on it. ...
Also separately given psu..