Josses01 it works perfectly, (after some searching) please add: ************************************ #include "FS.h" #include "SD.h" #include "SPI.h" #include #include #define SDCARD_SS 13 #define SDCARD_CLK 14 #define SDCARD_MOSI 15 #define SDCARD_MISO 2 SPIClass sdSPI(VSPI); bool sdOK = false; ************************************************* before setup, and in setup: ************************************************* sdSPI.begin(SDCARD_CLK, SDCARD_MISO, SDCARD_MOSI, SDCARD_SS); if (!SD.begin(SDCARD_SS, sdSPI)) { sdOK = false; Serial.println("sorry, failed"); } else { sdOK = true; Serial.println("works fine"); *******************************************************

Josses01 Having ruined my magnetic mat at first, I decided not to print ABS. As suggested by my supplier early 2019, the heatbed is capable of delivering the temperature required, but you will need to change the magnetic bed with a glass plate !!!. So be carefull