added bed levelling macros

README.md

@@ -14,6 +14,6 @@ I took out a bunch of stuff I don't need, and simplified what was left. I used t
 
 ## Installation
 
-Download the complete set of files, unzip them and, using the DWC Display page, upload them to your /menu folder.
+Create a `/Bed` folder insude your `/macros` folder and fill it with the files in this `macros/Bed`. Edit them to make sure the bed levelling happens where you want it to - these defaults place the nozzle above the bed screws on a Creality CR10S.
 
-Beware, any existing files with the same name will be overwritten, so best backup first.
+Upload the rest of the files to your /menu folder. Beware, any existing files with the same name will be overwritten, so you might want to back them up first.

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macros/Bed/Center

@@ -0,0 +1,4 @@
+G90
+G1 Z10 F3000
+G1 X150 Y150
+G1 Z0 F1000

macros/Bed/Point-A

@@ -0,0 +1,4 @@
+G90
+G0 Z10 F3000
+G0 X28 Y32
+G1 Z0 F1000

macros/Bed/Point-B

@@ -0,0 +1,4 @@
+G90
+G0 Z10 F3000
+G0 X268 Y32
+G1 Z0 F1000

macros/Bed/Point-C

@@ -0,0 +1,4 @@
+G90
+G1 Z10 F3000
+G1 X268 Y280 
+G1 Z0 F1000

macros/Bed/Point-D

@@ -0,0 +1,4 @@
+G90
+G1 Z10 F3000
+G1 X28 Y280
+G1 Z0 F1000

macros/Bed/Start

@@ -0,0 +1,4 @@
+G28
+G90
+G1 X28 Y32 F3000
+G1 Z0 F1000