✨ Ender-3 Max Neo with BTT SKR MINI E3 v3.0 (#1165)

config/default/Configuration_adv.h

@@ -2345,8 +2345,12 @@
   //#define BABYSTEP_DISPLAY_TOTAL          // Display total babysteps since last G28
 
   //#define BABYSTEP_ZPROBE_OFFSET          // Combine M851 Z and Babystepping
-  #if ENABLED(BABYSTEP_ZPROBE_OFFSET)
-    //#define BABYSTEP_HOTEND_Z_OFFSET      // For multiple hotends, babystep relative Z offsets
+  //#define BABYSTEP_GLOBAL_Z               // Combine M424 Z and Babystepping
+
+  #if ANY(BABYSTEP_ZPROBE_OFFSET, BABYSTEP_GLOBAL_Z)
+    #if ENABLED(BABYSTEP_ZPROBE_OFFSET)
+      //#define BABYSTEP_HOTEND_Z_OFFSET    // For multiple hotends, babystep relative Z offsets
+    #endif
     //#define BABYSTEP_GFX_OVERLAY          // Enable graphical overlay on Z-offset editor
   #endif
 #endif
@@ -3942,6 +3946,14 @@
  */
 //#define CNC_COORDINATE_SYSTEMS
 
+/**
+ * CNC Drilling Cycle - UNDER DEVELOPMENT
+ *
+ * Enables G81 to perform a drilling cycle.
+ * Currently only supports a single cycle, no G-code chaining.
+ */
+//#define CNC_DRILLING_CYCLE
+
 // @section security
 
 /**
@@ -4038,6 +4050,15 @@
   //#define GCODE_QUOTED_STRINGS  // Support for quoted string parameters
 #endif
 
+/**
+ * Variables
+ *
+ * Define a variable from 100-115 with G-code like '#101=19.6'.
+ * A variable can then be used in a G-code expression like 'G0 X[#101+3]'.
+ * See https://gcodetutor.com/cnc-macro-programming/cnc-variables.html
+ */
+//#define GCODE_VARIABLES
+
 /**
  * Support for MeatPack G-code compression (https://github.com/scottmudge/OctoPrint-MeatPack)
  */
@@ -4197,7 +4218,7 @@
     #define BUTTON1_WHEN_PRINTING false     // Button allowed to trigger during printing?
     #define BUTTON1_GCODE         "G28"
     #define BUTTON1_DESC          "Homing"  // Optional string to set the LCD status
-    //#define BUTTON1_IMMEDIATE             // Skip the queue and run the G-code immediately. Rarely needed.
+    //#define BUTTON1_IMMEDIATE             // Skip the queue and execute immediately. Rarely needed.
   #endif
 
   //#define BUTTON2_PIN -1

config/examples/Creality/Ender-3 Max Neo/BigTreeTech SKR Mini E3 3.0/README.md

@@ -0,0 +1,38 @@
+# Ender-3 Max Neo with BigTreeTech SKR Mini E3 V3.0 Configuration
+
+## DIAG Jumpers
+
+> [!WARNING]
+> **Critical Configuration Notes**<br/>The motherboard’s DIAG jumpers must be removed when using end‑stops.
+
+Remove the jumpers outlined in this image:
+![DIAG Jumpers](<images/DIAG jumpers.png>)
+
+## LCD Wiring Modification
+
+> [!WARNING]
+> The `DWIN_CREALITY_LCD` requires wiring modification!<br/>See `pins_BTT_SKR_MINI_E3_V3_0.h` for details. Requires a custom cable.
+
+### Physical Layout
+```
+Board and display pin layouts
+        ------                ------
+   ENT | 1  2 | BEEP      5V | 1  2 | GND
+   TX1 | 3  4 |            A | 3  4 | B
+   RX1   5  6 |         BEEP | 5  6   ENT
+     B | 7  8 | A         TX | 7  8 | RX
+   GND | 9 10 | 5V           | 9 10 |
+        ------                ------
+  Motherboard EXP1        Screen connector
+```
+
+### Pin Connections
+| Motherboard | Screen |
+|-------------|--------|
+| TX1         | RX     |
+| RX1         | TX     |
+| BEEP        | BEEP   |
+| A           | A      |
+| B           | B      |
+| 5V          | 5V     |
+| GND         | GND    |