I have the blue 3 axis TB6560 drivers and I have it working OK on my small machine setup.
I would like to use Mach3 to control my spindle speed. I have built a spindle using a brushless dc motor and it is running off a servo tester that uses a pot to change the speed. The servo tester simply has one line which I believe sends a pwm signal to the motor driver.
I was told to simply set a pin on my parallel port to "spindle" in Mach3 and run a line from the parallel pin to the motor driver and mach3 would provide this signal instead of the servo tester. However, the TB6560 has an integrated BOB and there doesn`t seem anywhere for an extra output for the spindle. There are 3 terminals for spindle on the TB6560 but these I believe are for the relay - Vol in, Earth, Vol out. I don`t think any of these are outputs to the parallel port.
Can I tap into the driver anywhere to pull of an extra output or perhaps tap into the manual interface??
I`m not 100% clear always what I am doing with electronics but with good instructions, I will be capable of giving this a go!
Any help would be massively appreciated!
Chris