For the love of god Rob, throw away the TB6560 controller and buy a Gecko G540 mate.
It adds a little to the cost of the machine but you may notice on the forums here that no-one to my knowledge, has ever regretted buying a G540!
I spent ages trying to get my 6040 working, before going to a G540 and a better quality 48VDC power supply, to get max power, and what a difference! It's a pretty simple wiring conversion too. For mine I simply bought some of the matching plug/socket connectors off ebay for a few bucks, and made new cables to connect to the G540, and plug into the existing connectors supplied with the machine.
cheers, Ian