diff --git a/Marlin/src/core/boards.h b/Marlin/src/core/boards.h
index 12bf167f40..efccc3716d 100644
--- a/Marlin/src/core/boards.h
+++ b/Marlin/src/core/boards.h
@@ -69,49 +69,50 @@
#define BOARD_MKS_GEN_L 1113 // MKS GEN L
#define BOARD_KFB_2 1114 // BigTreeTech or BIQU KFB2.0
#define BOARD_ZRIB_V20 1115 // zrib V2.0 control board (Chinese knock off RAMPS replica)
-#define BOARD_FELIX2 1116 // Felix 2.0+ Electronics Board (RAMPS like)
-#define BOARD_RIGIDBOARD 1117 // Invent-A-Part RigidBoard
-#define BOARD_RIGIDBOARD_V2 1118 // Invent-A-Part RigidBoard V2
-#define BOARD_SAINSMART_2IN1 1119 // Sainsmart 2-in-1 board
-#define BOARD_ULTIMAKER 1120 // Ultimaker
-#define BOARD_ULTIMAKER_OLD 1121 // Ultimaker (Older electronics. Pre 1.5.4. This is rare)
-#define BOARD_AZTEEG_X3 1122 // Azteeg X3
-#define BOARD_AZTEEG_X3_PRO 1123 // Azteeg X3 Pro
-#define BOARD_ULTIMAIN_2 1124 // Ultimainboard 2.x (Uses TEMP_SENSOR 20)
-#define BOARD_RUMBA 1125 // Rumba
-#define BOARD_RUMBA_RAISE3D 1126 // Raise3D N series Rumba derivative
-#define BOARD_RL200 1127 // Rapide Lite 200 (v1, low-cost RUMBA clone with drv)
-#define BOARD_FORMBOT_TREX2PLUS 1128 // Formbot T-Rex 2 Plus
-#define BOARD_FORMBOT_TREX3 1129 // Formbot T-Rex 3
-#define BOARD_FORMBOT_RAPTOR 1130 // Formbot Raptor
-#define BOARD_FORMBOT_RAPTOR2 1131 // Formbot Raptor 2
-#define BOARD_BQ_ZUM_MEGA_3D 1132 // bq ZUM Mega 3D
-#define BOARD_MAKEBOARD_MINI 1133 // MakeBoard Mini v2.1.2 is a control board sold by MicroMake
-#define BOARD_TRIGORILLA_13 1134 // TriGorilla Anycubic version 1.3-based on RAMPS EFB
-#define BOARD_TRIGORILLA_14 1135 // ... Ver 1.4
-#define BOARD_TRIGORILLA_14_11 1136 // ... Rev 1.1 (new servo pin order)
-#define BOARD_RAMPS_ENDER_4 1137 // Creality: Ender-4, CR-8
-#define BOARD_RAMPS_CREALITY 1138 // Creality: CR10S, CR20, CR-X
-#define BOARD_DAGOMA_F5 1139 // Dagoma F5
-#define BOARD_FYSETC_F6_13 1140 // FYSETC F6 1.3
-#define BOARD_FYSETC_F6_14 1141 // FYSETC F6 1.4
-#define BOARD_DUPLICATOR_I3_PLUS 1142 // Wanhao Duplicator i3 Plus
-#define BOARD_VORON 1143 // VORON Design
-#define BOARD_TRONXY_V3_1_0 1144 // Tronxy TRONXY-V3-1.0
-#define BOARD_Z_BOLT_X_SERIES 1145 // Z-Bolt X Series
-#define BOARD_TT_OSCAR 1146 // TT OSCAR
-#define BOARD_OVERLORD 1147 // Overlord/Overlord Pro
-#define BOARD_HJC2560C_REV1 1148 // ADIMLab Gantry v1
-#define BOARD_HJC2560C_REV2 1149 // ADIMLab Gantry v2
-#define BOARD_TANGO 1150 // BIQU Tango V1
-#define BOARD_MKS_GEN_L_V2 1151 // MKS GEN L V2
-#define BOARD_MKS_GEN_L_V21 1152 // MKS GEN L V2.1
-#define BOARD_COPYMASTER_3D 1153 // Copymaster 3D
-#define BOARD_ORTUR_4 1154 // Ortur 4
-#define BOARD_TENLOG_D3_HERO 1155 // Tenlog D3 Hero IDEX printer
-#define BOARD_RAMPS_S_12_EEFB 1156 // Ramps S 1.2 by Sakul.cz (Power outputs: Hotend0, Hotend1, Fan, Bed)
-#define BOARD_RAMPS_S_12_EEEB 1157 // Ramps S 1.2 by Sakul.cz (Power outputs: Hotend0, Hotend1, Hotend2, Bed)
-#define BOARD_RAMPS_S_12_EFFB 1158 // Ramps S 1.2 by Sakul.cz (Power outputs: Hotend, Fan0, Fan1, Bed)
+#define BOARD_ZRIB_V52 1116 // zrib V5.2 control board (Chinese knock off RAMPS replica)
+#define BOARD_FELIX2 1117 // Felix 2.0+ Electronics Board (RAMPS like)
+#define BOARD_RIGIDBOARD 1118 // Invent-A-Part RigidBoard
+#define BOARD_RIGIDBOARD_V2 1119 // Invent-A-Part RigidBoard V2
+#define BOARD_SAINSMART_2IN1 1120 // Sainsmart 2-in-1 board
+#define BOARD_ULTIMAKER 1121 // Ultimaker
+#define BOARD_ULTIMAKER_OLD 1122 // Ultimaker (Older electronics. Pre 1.5.4. This is rare)
+#define BOARD_AZTEEG_X3 1123 // Azteeg X3
+#define BOARD_AZTEEG_X3_PRO 1124 // Azteeg X3 Pro
+#define BOARD_ULTIMAIN_2 1125 // Ultimainboard 2.x (Uses TEMP_SENSOR 20)
+#define BOARD_RUMBA 1126 // Rumba
+#define BOARD_RUMBA_RAISE3D 1127 // Raise3D N series Rumba derivative
+#define BOARD_RL200 1128 // Rapide Lite 200 (v1, low-cost RUMBA clone with drv)
+#define BOARD_FORMBOT_TREX2PLUS 1129 // Formbot T-Rex 2 Plus
+#define BOARD_FORMBOT_TREX3 1130 // Formbot T-Rex 3
+#define BOARD_FORMBOT_RAPTOR 1131 // Formbot Raptor
+#define BOARD_FORMBOT_RAPTOR2 1132 // Formbot Raptor 2
+#define BOARD_BQ_ZUM_MEGA_3D 1133 // bq ZUM Mega 3D
+#define BOARD_MAKEBOARD_MINI 1134 // MakeBoard Mini v2.1.2 is a control board sold by MicroMake
+#define BOARD_TRIGORILLA_13 1135 // TriGorilla Anycubic version 1.3-based on RAMPS EFB
+#define BOARD_TRIGORILLA_14 1136 // ... Ver 1.4
+#define BOARD_TRIGORILLA_14_11 1137 // ... Rev 1.1 (new servo pin order)
+#define BOARD_RAMPS_ENDER_4 1138 // Creality: Ender-4, CR-8
+#define BOARD_RAMPS_CREALITY 1139 // Creality: CR10S, CR20, CR-X
+#define BOARD_DAGOMA_F5 1140 // Dagoma F5
+#define BOARD_FYSETC_F6_13 1141 // FYSETC F6 1.3
+#define BOARD_FYSETC_F6_14 1142 // FYSETC F6 1.4
+#define BOARD_DUPLICATOR_I3_PLUS 1143 // Wanhao Duplicator i3 Plus
+#define BOARD_VORON 1144 // VORON Design
+#define BOARD_TRONXY_V3_1_0 1145 // Tronxy TRONXY-V3-1.0
+#define BOARD_Z_BOLT_X_SERIES 1146 // Z-Bolt X Series
+#define BOARD_TT_OSCAR 1147 // TT OSCAR
+#define BOARD_OVERLORD 1148 // Overlord/Overlord Pro
+#define BOARD_HJC2560C_REV1 1149 // ADIMLab Gantry v1
+#define BOARD_HJC2560C_REV2 1150 // ADIMLab Gantry v2
+#define BOARD_TANGO 1151 // BIQU Tango V1
+#define BOARD_MKS_GEN_L_V2 1152 // MKS GEN L V2
+#define BOARD_MKS_GEN_L_V21 1153 // MKS GEN L V2.1
+#define BOARD_COPYMASTER_3D 1154 // Copymaster 3D
+#define BOARD_ORTUR_4 1155 // Ortur 4
+#define BOARD_TENLOG_D3_HERO 1156 // Tenlog D3 Hero IDEX printer
+#define BOARD_RAMPS_S_12_EEFB 1157 // Ramps S 1.2 by Sakul.cz (Power outputs: Hotend0, Hotend1, Fan, Bed)
+#define BOARD_RAMPS_S_12_EEEB 1158 // Ramps S 1.2 by Sakul.cz (Power outputs: Hotend0, Hotend1, Hotend2, Bed)
+#define BOARD_RAMPS_S_12_EFFB 1159 // Ramps S 1.2 by Sakul.cz (Power outputs: Hotend, Fan0, Fan1, Bed)
//
// RAMBo and derivatives
diff --git a/Marlin/src/lcd/menu/menu_tramming.cpp b/Marlin/src/lcd/menu/menu_tramming.cpp
index c01f983833..a102fe7e57 100644
--- a/Marlin/src/lcd/menu/menu_tramming.cpp
+++ b/Marlin/src/lcd/menu/menu_tramming.cpp
@@ -16,7 +16,7 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program. If not, see .
+ * along with this program. If not, see .
*
*/
diff --git a/Marlin/src/lcd/thermistornames.h b/Marlin/src/lcd/thermistornames.h
index 37f285d483..f9f91ac49a 100644
--- a/Marlin/src/lcd/thermistornames.h
+++ b/Marlin/src/lcd/thermistornames.h
@@ -68,6 +68,8 @@
#define THERMISTOR_NAME "Zonestar (Tronxy X3A)"
#elif THERMISTOR_ID == 502
#define THERMISTOR_NAME "Zonestar (P802M Hot Bed)"
+#elif THERMISTOR_ID == 503
+ #define THERMISTOR_NAME "Zonestar (Z8XM2 Bed)"
#elif THERMISTOR_ID == 512
#define THERMISTOR_NAME "RPW-Ultra"
#elif THERMISTOR_ID == 6
diff --git a/Marlin/src/module/thermistor/thermistor_503.h b/Marlin/src/module/thermistor/thermistor_503.h
new file mode 100644
index 0000000000..fc4bffffdb
--- /dev/null
+++ b/Marlin/src/module/thermistor/thermistor_503.h
@@ -0,0 +1,57 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *
+ */
+#pragma once
+
+// Zonestar (Z8XM2) Heated Bed thermistor. Added By AvanOsch
+// These are taken from the Zonestar settings in original Repetier firmware: Z8XM2_ZRIB_LCD12864_V51.zip
+const temp_entry_t temptable_503[] PROGMEM = {
+ { OV( 12), 300 },
+ { OV( 27), 270 },
+ { OV( 47), 250 },
+ { OV( 68), 230 },
+ { OV( 99), 210 },
+ { OV( 120), 200 },
+ { OV( 141), 190 },
+ { OV( 171), 180 },
+ { OV( 201), 170 },
+ { OV( 261), 160 },
+ { OV( 321), 150 },
+ { OV( 401), 140 },
+ { OV( 451), 130 },
+ { OV( 551), 120 },
+ { OV( 596), 110 },
+ { OV( 626), 105 },
+ { OV( 666), 100 },
+ { OV( 697), 90 },
+ { OV( 717), 85 },
+ { OV( 798), 69 },
+ { OV( 819), 65 },
+ { OV( 870), 55 },
+ { OV( 891), 51 },
+ { OV( 922), 39 },
+ { OV( 968), 28 },
+ { OV( 980), 23 },
+ { OV( 991), 17 },
+ { OV( 1001), 9 },
+ { OV(1021), -27 },
+ { OV(1023), -200}
+};
diff --git a/Marlin/src/module/thermistor/thermistors.h b/Marlin/src/module/thermistor/thermistors.h
index f90361d9a3..ab92102de3 100644
--- a/Marlin/src/module/thermistor/thermistors.h
+++ b/Marlin/src/module/thermistor/thermistors.h
@@ -75,6 +75,9 @@ typedef struct { int16_t value, celsius; } temp_entry_t;
#if ANY_THERMISTOR_IS(502) // Unknown thermistor used by the Zonestar Průša P802M hot bed
#include "thermistor_502.h"
#endif
+#if ANY_THERMISTOR_IS(503) // Zonestar (Z8XM2) Heated Bed thermistor
+ #include "thermistor_503.h"
+#endif
#if ANY_THERMISTOR_IS(512) // 100k thermistor in RPW-Ultra hotend, Pull-up = 4.7 kOhm, "unknown model"
#include "thermistor_512.h"
#endif
diff --git a/Marlin/src/pins/pins.h b/Marlin/src/pins/pins.h
index 22b0c6947f..5eb4717e78 100644
--- a/Marlin/src/pins/pins.h
+++ b/Marlin/src/pins/pins.h
@@ -104,13 +104,13 @@
#elif MB(3DRAG)
#include "ramps/pins_3DRAG.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(K8200)
- #include "ramps/pins_K8200.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560 (3DRAG)
+ #include "ramps/pins_K8200.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(K8400)
- #include "ramps/pins_K8400.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560 (3DRAG)
+ #include "ramps/pins_K8400.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(K8600)
#include "ramps/pins_K8600.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(K8800)
- #include "ramps/pins_K8800.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560 (3DRAG)
+ #include "ramps/pins_K8800.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(BAM_DICE)
#include "ramps/pins_RAMPS.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(BAM_DICE_DUE)
@@ -132,7 +132,9 @@
#elif MB(KFB_2)
#include "ramps/pins_BIQU_KFB_2.h" // ATmega2560 env:mega2560
#elif MB(ZRIB_V20)
- #include "ramps/pins_ZRIB_V20.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560 (MKS_GEN_13)
+ #include "ramps/pins_ZRIB_V20.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
+#elif MB(ZRIB_V52)
+ #include "ramps/pins_ZRIB_V52.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(FELIX2)
#include "ramps/pins_FELIX2.h" // ATmega1280, ATmega2560 env:mega1280 env:mega2560
#elif MB(RIGIDBOARD)
diff --git a/Marlin/src/pins/ramps/pins_ZRIB_V52.h b/Marlin/src/pins/ramps/pins_ZRIB_V52.h
new file mode 100644
index 0000000000..983c840bbc
--- /dev/null
+++ b/Marlin/src/pins/ramps/pins_ZRIB_V52.h
@@ -0,0 +1,159 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *
+ */
+#pragma once
+
+/**
+ * ZRIB V5.2 Based on MKS BASE v1.4 with A4982 stepper drivers and digital micro-stepping
+ */
+
+#if HOTENDS > 2 || E_STEPPERS > 2
+ #error "ZRIB V5.2 only supports up to 2 hotends / E-steppers. Comment out this line to continue."
+#endif
+
+#define BOARD_INFO_NAME "ZRIB V5.2"
+
+#define MKS_BASE_VERSION 14
+#define IS_RAMPS_EFB
+
+//
+// Heaters / Fans
+//
+#define FAN_PIN 9 // PH6 ** Pin18 ** PWM9
+#define FAN1_PIN 6
+
+//
+// Extra Extruder / Stepper for V5.2
+//
+#define E2_STEP_PIN 4
+#define E2_DIR_PIN 5
+#define E2_ENABLE_PIN 22
+
+#include "pins_MKS_BASE_common.h"
+
+/*
+ Available connectors on MKS BASE v1.4 (Basically same as ZRIB V5.2)
+
+ =======
+ | GND |
+ |-----| E0
+ | 10 | (10) PB4 ** Pin23 ** PWM10
+ |-----|
+ | GND |
+ |-----| E1
+ | 7 | ( 7) PH4 ** Pin16 ** PWM7
+ |-----|
+ | GND |
+ |-----| FAN
+ | 9 | ( 9) PH6 ** Pin18 ** PWM9
+ =======
+
+ =======
+ | GND |
+ |-----| Heated Bed
+ | 8 | ( 8) PH5 ** Pin17 ** PWM8
+ =======
+
+ ==========
+ | 12-24V |
+ |--------| Power
+ | GND |
+ ==========
+
+ XS3 Connector
+ =================
+ | 65 | GND | 5V | (65) PK3 ** Pin86 ** A11
+ |----|-----|----|
+ | 66 | GND | 5V | (66) PK4 ** Pin85 ** A12
+ =================
+
+ Servos Connector
+ =================
+ | 11 | GND | 5V | (11) PB5 ** Pin24 ** PWM11
+ |----|-----|----|
+ | 12 | GND | 5V | (12) PB6 ** Pin25 ** PWM12
+ =================
+
+ ICSP
+ =================
+ | 5V | 51 | GND | (51) PB2 ** Pin21 ** SPI_MOSI
+ |----|----|-----|
+ | 50 | 52 | RST | (50) PB3 ** Pin22 ** SPI_MISO
+ ================= (52) PB1 ** Pin20 ** SPI_SCK
+
+ XS6/AUX-1 Connector
+ ======================
+ | 5V | GND | NC | 20 | (20) PD1 ** Pin44 ** I2C_SDA
+ |----|-----|----|----|
+ | 50 | 51 | 52 | 21 | (50) PB3 ** Pin22 ** SPI_MISO
+ ====================== (51) PB2 ** Pin21 ** SPI_MOSI
+ (52) PB1 ** Pin20 ** SPI_SCK
+ (21) PD0 ** Pin43 ** I2C_SCL
+
+ Temperature
+ ==================================
+ | GND | 69 | GND | 68 | GND | 67 |
+ ==================================
+ (69) PK7 ** Pin82 ** A15
+ (68) PK6 ** Pin83 ** A14
+ (67) PK5 ** Pin84 ** A13
+
+ Limit Switches
+ ============
+ | 2 | GND | X+ ( 2) PE4 ** Pin6 ** PWM2
+ |----|-----|
+ | 3 | GND | X- ( 3) PE5 ** Pin7 ** PWM3
+ |----|-----|
+ | 15 | GND | Y+ (15) PJ0 ** Pin63 ** USART3_RX
+ |----|-----|
+ | 14 | GND | Y- (14) PJ1 ** Pin64 ** USART3_TX
+ |----|-----|
+ | 19 | GND | Z+ (19) PD2 ** Pin45 ** USART1_RX
+ |----|-----|
+ | 18 | GND | Z- (18) PD3 ** Pin46 ** USART1_TX
+ ============
+
+ EXP1
+ ============
+ | 37 | 35 | (37) PC0 ** Pin53 ** D37
+ |-----|----| (35) PC2 ** Pin55 ** D35
+ | 17 | 16 | (17) PH0 ** Pin12 ** USART2_RX
+ |-----|----| (16) PH1 ** Pin13 ** USART2_TX
+ | 23 | 25 | (23) PA1 ** Pin77 ** D23
+ |-----|----| (25) PA3 ** Pin75 ** D25
+ | 27 | 29 | (27) PA5 ** Pin73 ** D27
+ |-----|----| (29) PA7 ** Pin71 ** D29
+ | GND | 5V |
+ ============
+
+ EXP2
+ ============
+ | 50 | 52 | (50) PB3 ** Pin22 ** SPI_MISO
+ |-----|----| (52) PB1 ** Pin20 ** SPI_SCK
+ | 31 | 53 | (31) PC6 ** Pin59 ** D31
+ |-----|----| (53) PB0 ** Pin19 ** SPI_SS
+ | 33 | 51 | (33) PC4 ** Pin57 ** D33
+ |-----|----| (51) PB2 ** Pin21 ** SPI_MOSI
+ | 49 | 41 | (49) PL0 ** Pin35 ** D49
+ |-----|----| (41) PG0 ** Pin51 ** D41
+ | GND | NC |
+ ============
+*/