Help with tb6600 stepper driver

[Doddy]

Starter for 10...

On the BOB you look to have +5V, CLK and CW. So, I'm making an assumption that the BoB is designed to switch active low (it presents a 0V, with reference to the provided +5V to indicate a signal). The TB6600 allows this easily enough.

I'd take the +5V and connect this to the DIR+ and PUL+ terminals on the TB6600.
Take the CLK signal (I assume CLK = Clock = Step) and connect to the PUL- terminal on the TB6600.
Take the CW signal (I assume CW = Clockwise = Direction) and connect to the DIR- terminal on the TB6600.

You won't break anything (much) if the assumptions about CLK/CW are incorrect - you'll just find the stepper takes a single step on change of direction, and nothing else.

You could still find that you have a problem with missing steps... what makes you think the TB6600 is quicker than the TB6560? If you're using Mach3 then I'd look on your motor tuning page and try upping the step-pulse duration if it's less than 5uS.