Swapped X and Y axis, Z endstips not working

LowRider CNC Troubleshooting
1

I successfully swapped my X and Y axis around. My X axis is now the axis on the rollers and the Y axis is now the tube gantry axis. Endstops work for both X and Y including dual endstops for X.

In the process I needed to move Z2 endstop from XMAX. I changed this in configuration_adv.h:
// For Z set the number of stepper drivers
//
#define NUM_Z_STEPPER_DRIVERS 2 // (1-4) Z options change based on how many
#if NUM_Z_STEPPER_DRIVERS > 1
#define Z_MULTI_ENDSTOPS
#if ENABLED(Z_MULTI_ENDSTOPS)
#define Z2_USE_ENDSTOP ZMAX <<< Changed this from XMX
#define Z2_ENDSTOP_ADJUSTMENT 0
#if NUM_Z_STEPPER_DRIVERS >= 3
#define Z3_USE_ENDSTOP YMAX
#define Z3_ENDSTOP_ADJUSTMENT 0
#endif
#if NUM_Z_STEPPER_DRIVERS >= 4
#define Z4_USE_ENDSTOP ZMAX
#define Z4_ENDSTOP_ADJUSTMENT 0
#endif
#endif
#endif

Triggering the Z endstops while sending M119 shows that both do trigger. It tells me Z Zmin triggered and Z2 Zmax triggered yet when trying to home the Z axis the motors to not stop moving when the endstops get triggered.

I noticed that when homing the X axis it show me X Xmin triggered X2 Xmin triggered which is odd to me

My endstops are plugged in as follows:
X to xmin x2 to xmax
Y to ymin
Z to zmin Z2 to zmax

I’m obviously missing something.

2

The Z1 motor was already using ZMAX as the pin to stop it when homing. Instead, put YMAX in there, and make sure your two Z endstops are in ZMAX and YMAX. The two X endstops are in Xmin and Xmax. The Y endstop is at Ymin (although it isn’t needed, really). The Zmin is for a probe.

3

Thanks Jeff,
so I’m clear I should have my endstops like this:
X1 motor > XMIN X2 motor > XMAX
Y motor > YMIN
Z1 motor ZMAX Z2 motor YMAX
and change the code in configuration_adv.h to read as follows:
#if NUM_Z_STEPPER_DRIVERS > 1
#define Z_MULTI_ENDSTOPS
#if ENABLED(Z_MULTI_ENDSTOPS)
#define Z2_USE_ENDSTOP YMAX
etc…

Is this correct?

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4

Thanks Jeff! All seems to be working properly now.

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