Z axis will hold not move

browfingarf

Hi, 

I have been searching for a solution for this for a while. My z axis will hold but not move as i have said. I am using a ramps board.

I have confirmed the wiring is good as my X and Y axis work properly and have swapped both the drivers and the motors. Everything works properly. 

There is no load on the motors right now so binding is not the issue. I thought it was something to do with the endstops. From what I heard that was a big problem area. I have tried different setups... this is what I have right now. Any ideas would be appreciated. 

Liam

browfingarf

This is what i have for code

#define ENDSTOP_PULLUP_X_MIN false

#define ENDSTOP_PULLUP_Y_MIN false

#define ENDSTOP_PULLUP_Z_MIN false

#define ENDSTOP_PULLUP_X_MAX true

#define ENDSTOP_PULLUP_Y_MAX true

#define ENDSTOP_PULLUP_Z_MAX true

//set to true to invert the logic of the endstops

#define ENDSTOP_X_MIN_INVERTING true

#define ENDSTOP_Y_MIN_INVERTING true

#define ENDSTOP_Z_MIN_INVERTING false

#define ENDSTOP_X_MAX_INVERTING false

#define ENDSTOP_Y_MAX_INVERTING false

#define ENDSTOP_Z_MAX_INVERTING false

// Set the values true where you have a hardware endstop. The Pin number is taken from pins.h.

#define MIN_HARDWARE_ENDSTOP_X true

#define MIN_HARDWARE_ENDSTOP_Y true

#define MIN_HARDWARE_ENDSTOP_Z false

#define MAX_HARDWARE_ENDSTOP_X false

#define MAX_HARDWARE_ENDSTOP_Y false

#define MAX_HARDWARE_ENDSTOP_Z true

//If your axes are only moving in one direction, make sure the endstops are connected properly.

//If your axes move in one direction ONLY when the endstops are triggered, set ENDSTOPS_INVERTING to true here

//// ADVANCED SETTINGS - to tweak parameters

// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1

#define X_ENABLE_ON 0

#define Y_ENABLE_ON 0

#define Z_ENABLE_ON 0

// Disables axis when it's not being used.

#define DISABLE_X false

#define DISABLE_Y false

#define DISABLE_Z false

#define DISABLE_E false

// Inverting axis direction

#define INVERT_X_DIR true

#define INVERT_Y_DIR true

#define INVERT_Z_DIR true

browfingarf

Also from a simple finger test all motors seem to have the same holding torque.

Repetier

Check eeprom settings speed/max speed/steps and acceleration. Rod based z axis with 2560 steps per mm can only handle low acceleration 50 till 100mm/s^3. Higher rates let the motor whine but nothing happens. Also max. speed is 2-5 mm/s.

browfingarf

I made those adjustments and tried the motor. They still hold and will not turn. 

Thanks for the reply!