After my first Servo died and reading around a bit a proceeded as follows:
1. Press button 3 to get into 45 Degree position, install the servo arm
2. Switch off the printer
3. Disconnect the touchscreen
4. Connect to PC and open Pronterface
5. Connect to Pronterface (no need to switch on printer)
6. Enter M280 P3 to read servo arm position (it should be 45 degree)
7. Start with M280 P3 S10 to see how far the arm goes to the left, then go back to 45, iterate until you find the servo finds the endstop to the left. Do the same iterating from S45 to S80, S81, S82, etc. until you find the endstop to the right. In my specific case, Endstop to the left was 1 degree, endstop to the right was 88 Degrees.
8. Enter the values you have determined in Marlin File “Configuration.h”
After my first Servo died and reading around a bit a proceeded as follows:
1. Press button 3 to get into 45 Degree position, install the servo arm
2. Switch off the printer
3. Disconnect the touchscreen
4. Connect to PC and open Pronterface
5. Connect to Pronterface (no need to switch on printer)
6. Enter M280 P3 to read servo arm position (it should be 45 degree)
7. Start with M280 P3 S10 to see how far the arm goes to the left, then go back to 45, iterate until you find the servo finds the endstop to the left. Do the same iterating from S45 to S80, S81, S82, etc. until you find the endstop to the right. In my specific case, Endstop to the left was 1 degree, endstop to the right was 88 Degrees.
8. Enter the values you have determined in Marlin File “Configuration.h”
Change the angles from
#define SWITCHING_NOZZLE_SERVO_ANGLES { 0, 100 } // Angles for E0, E1
to
#define SWITCHING_NOZZLE_SERVO_ANGLES { YOURVALUELEFT, YOURVALUERIGHT }
9. Upload firmware
10. disconnect computer
11. Connect Touchscreen ans proceed