From 5c120222a49990702bec327860f82848b8ca14ec Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Tue, 8 May 2018 05:42:14 -0500
Subject: [PATCH] Show correct units in M503

---
 Marlin/configuration_store.cpp | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/Marlin/configuration_store.cpp b/Marlin/configuration_store.cpp
index a6632a6bcf..ab49001df5 100644
--- a/Marlin/configuration_store.cpp
+++ b/Marlin/configuration_store.cpp
@@ -1904,6 +1904,16 @@ void MarlinSettings::reset() {
     void say_M603() { SERIAL_ECHOPGM("  M603 "); }
   #endif
 
+  inline void say_units(const bool colon=false) {
+    serialprintPGM(
+      #if ENABLED(INCH_MODE_SUPPORT)
+        parser.linear_unit_factor != 1.0 ? PSTR(" (in)") :
+      #endif
+      PSTR(" (mm)")
+    );
+    if (colon) SERIAL_ECHOLNPGM(":");
+  }
+
   /**
    * M503 - Report current settings in RAM
    *
@@ -1920,13 +1930,15 @@ void MarlinSettings::reset() {
       #define VOLUMETRIC_UNIT(N) (float(N) / (parser.volumetric_enabled ? parser.volumetric_unit_factor : parser.linear_unit_factor))
       SERIAL_ECHOPGM("  G2");
       SERIAL_CHAR(parser.linear_unit_factor == 1.0 ? '1' : '0');
-      SERIAL_ECHOPGM(" ; Units in ");
-      serialprintPGM(parser.linear_unit_factor == 1.0 ? PSTR("mm\n") : PSTR("inches\n"));
+      SERIAL_ECHOPGM(" ;");
+      say_units();
     #else
       #define LINEAR_UNIT(N) (N)
       #define VOLUMETRIC_UNIT(N) (N)
-      SERIAL_ECHOLNPGM("  G21    ; Units in mm");
+      SERIAL_ECHOPGM("  G21    ;");
+      say_units();
     #endif
+    SERIAL_EOL();
 
     #if ENABLED(ULTIPANEL)
 
@@ -2338,7 +2350,8 @@ void MarlinSettings::reset() {
     #if HAS_BED_PROBE
       if (!forReplay) {
         CONFIG_ECHO_START;
-        SERIAL_ECHOLNPGM("Z-Probe Offset (mm):");
+        SERIAL_ECHOPGM("Z-Probe Offset");
+        say_units(true);
       }
       CONFIG_ECHO_START;
       SERIAL_ECHOLNPAIR("  M851 Z", LINEAR_UNIT(zprobe_zoffset));