Append building instructions

Resolve #13

Marlin/Configuration.h

@@ -556,14 +556,14 @@
  *          TMC5130, TMC5130_STANDALONE
  * :['A4988', 'DRV8825', 'LV8729', 'L6470', 'TB6560', 'TB6600', 'TMC2100', 'TMC2130', 'TMC2130_STANDALONE', 'TMC2208', 'TMC2208_STANDALONE', 'TMC26X', 'TMC26X_STANDALONE', 'TMC2660', 'TMC2660_STANDALONE', 'TMC5130', 'TMC5130_STANDALONE']
  */
-#define X_DRIVER_TYPE  TMC2208_STANDALONE
-#define Y_DRIVER_TYPE  TMC2208_STANDALONE
-#define Z_DRIVER_TYPE  TMC2208_STANDALONE
+#define X_DRIVER_TYPE  TMC2208_STANDALONE // comment out for stock drivers
+#define Y_DRIVER_TYPE  TMC2208_STANDALONE // comment out for stock drivers
+#define Z_DRIVER_TYPE  TMC2208_STANDALONE // comment out for stock drivers
 #define X2_DRIVER_TYPE TMC2208_STANDALONE
 #define Y2_DRIVER_TYPE TMC2208_STANDALONE
-#define Z2_DRIVER_TYPE TMC2208_STANDALONE
-#define E0_DRIVER_TYPE TMC2208_STANDALONE
-#define E1_DRIVER_TYPE TMC2208_STANDALONE
+#define Z2_DRIVER_TYPE TMC2208_STANDALONE // comment out for stock drivers
+#define E0_DRIVER_TYPE TMC2208_STANDALONE // comment out for stock drivers
+#define E1_DRIVER_TYPE TMC2208_STANDALONE // comment out for stock drivers
 #define E2_DRIVER_TYPE TMC2208_STANDALONE
 #define E3_DRIVER_TYPE TMC2208_STANDALONE
 #define E4_DRIVER_TYPE TMC2208_STANDALONE
@@ -854,15 +854,15 @@
 // @section machine
 
 // Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.
-#define INVERT_X_DIR false
-#define INVERT_Y_DIR true
-#define INVERT_Z_DIR true
+#define INVERT_X_DIR false // set to true for stock drivers or TMC2208 with reversed connectors
+#define INVERT_Y_DIR true // set to false for stock drivers or TMC2208 with reversed connectors
+#define INVERT_Z_DIR true // set to false for stock drivers or TMC2208 with reversed connectors
 
 // @section extruder
 
 // For direct drive extruder v9 set to true, for geared extruder set to false.
-#define INVERT_E0_DIR true
-#define INVERT_E1_DIR true
+#define INVERT_E0_DIR true // set to false for stock drivers or TMC2208 with reversed connectors
+#define INVERT_E1_DIR true // set to false for stock drivers or TMC2208 with reversed connectors
 #define INVERT_E2_DIR false
 #define INVERT_E3_DIR false
 #define INVERT_E4_DIR false

README.md

@@ -49,7 +49,8 @@ I provided three different precompiled hex files: One for no modifications on th
 - Clone or download this repo
 - In the IDE, under `Tools -> Board` select `Genuino Mega 2560` and `ATmega2560`
 - Open Marlin.ino in the Marlin directory of this repo
-- Customize if needed and under `Sketch`, select `Export compiled binary`
+- Customize if needed (e.g. motor directiona and type at line `559` to `566` and line `857` to `865`)
+- Under `Sketch`, select `Export compiled binary`
 - Look for the .hex file in your temporary directory, e.g. `.../AppData/Local/Temp/arduino_build_xxx/` (only the `Marlin.ino.hex`, not the `Marlin.ino.with_bootloader.hex`!)
 
 ### After obtaining the hex file: