From 9b1f3f7d120f04475a033a4a63cbc49f613b0b4c Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Fri, 19 Aug 2016 04:31:03 -0500
Subject: [PATCH] Sanity-check DELTA + AUTO_BED_LEVELING_GRID_POINTS

---
 Marlin/SanityCheck.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Marlin/SanityCheck.h b/Marlin/SanityCheck.h
index fc866b121..228486ee8 100644
--- a/Marlin/SanityCheck.h
+++ b/Marlin/SanityCheck.h
@@ -191,6 +191,13 @@
   #if DISABLED(USE_XMAX_PLUG) && DISABLED(USE_YMAX_PLUG) && DISABLED(USE_ZMAX_PLUG)
     #error "You probably want to use Max Endstops for DELTA!"
   #endif
+  #if ENABLED(AUTO_BED_LEVELING_GRID)
+    #if (AUTO_BED_LEVELING_GRID_POINTS & 1) == 0
+      #error "DELTA requires an odd value for AUTO_BED_LEVELING_GRID_POINTS."
+    #elif AUTO_BED_LEVELING_GRID_POINTS < 3
+      #error "DELTA requires at least 3 AUTO_BED_LEVELING_GRID_POINTS."
+    #endif
+  #endif
 #endif
 
 /**