M119 Missing Endstops

Software / Firmware General
1

I’m in the process of converting my MPCNC to a dual stepper and dual endstop machine. Everything worked fine before and I’ve been able to get the dual steppers to work but cannot seem to figure out dual endstop. Whenever I send M119 command I only see x,y,z endstops. Including some relevant snippets from my config files below.

Output

M119
Reporting endstop status
x_min: open
y_min: open
z_min: open
ok

Pins File
//
// Limit Switches
//
#define X_STOP_PIN PA5
#define Y_STOP_PIN PA6
#ifndef Z_STOP_PIN
#define Z_STOP_PIN PA7
#endif
#define X2_STOP_PIN PC5
#define Y2_STOP_PIN PC4

Configuration_adv.h
#define X_DUAL_STEPPER_DRIVERS
#if ENABLED(X_DUAL_STEPPER_DRIVERS)
#define INVERT_X2_VS_X_DIR // Enable if X2 direction signal is opposite to X
#define X_DUAL_ENDSTOPS
#if ENABLED(X_DUAL_ENDSTOPS)
#define X2_USE_ENDSTOP XMAX
#define X2_ENDSTOP_ADJUSTMENT 0
#endif
#endif

2

As a guess, have you defined the other endstops? In configuration.h, you should have a section which enables xmin, xmax, ymin, ymax, and zmin. Something like:

#define USE_XMIN_PLUG
#define USE_YMIN_PLUG
#define USE_ZMIN_PLUG
#define USE_XMAX_PLUG
#define USE_YMAX_PLUG

I’m not sure of your exact process. If you have one of the boards that V1 maintains a Marlin version for, then it is best to use that firmware. If you have another board, I suggest you take your configuration.h and configuration_adv.h files and run a comparison utility like MELD against one of the Dual configurations maintained by V1.

3

MELD… Robert thanks for the advice, that looks much cleaner and faster than the vscode diff plugin I’ve been using. I miss my atom/pio setup lol.

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4

Figured it out… This is a Ender 3v2 (Creality board) conversion to a dual stepper / dual endstop MPCNC. Pins file needed x_min and x_max instead of the X_stop_pin and X2_stop_pin.

#define X_MIN_PIN PA5
#define X_MAX_PIN PA6
#define Y_MIN_PIN PC5
#define Y_MAX_PIN PC4

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