Hi, I'm new to the community and to cnc. I have a knockoff lead cnc kit that I'm putting together and I'm trying to figure out my movement. Motion only works if I go very slow and the stepper makes noise without moving if I try a higher speed. Overall, everything sounds really rough. My steppers are 23HD86001Y-21B Drivers TB660-4.0 Controller NVUM with Mach3. [youtube] Looks like my cabling is correct and the dip switches are set as recommended on the steppers. I thought perhaps my eccentric nuts were too tight but I disconnected the motor from the lead screw and it's still not working smoothly. I built a 3d printer before but I'm new to CNC routers. I'm not sure where to start to troubleshoot this. Any help would be appreciated.