.INI file for the FET-3
Got TurboCNC to work with the FET-3 controller from Stepperworld.
You will still need to calibrate your machine, but at least it will configure the motors.
I also calibrated the machine to the software and replaced the rigid coupler joint on the Y-axis with the vacuum tubing that John K had originally recommended. He was right, the coupler needs the slight flexibility that the tubing allows to compensate for slight alignment problems.