✨ Creality3D CR-30 PrintMill

Marlin/Configuration.h

@@ -758,6 +758,9 @@
 //#define COREZY
 //#define MARKFORGED_XY  // MarkForged. See https://reprap.org/forum/read.php?152,504042
 
+// Enable for a belt style printer with endless "Z" motion
+//#define BELTPRINTER
+
 //===========================================================================
 //============================== Endstop Settings ===========================
 //===========================================================================

Marlin/src/feature/pause.cpp

@@ -213,6 +213,8 @@ bool load_filament(const_float_t slow_load_length/*=0*/, const_float_t fast_load
     set_duplication_enabled(false, DXC_ext);
   #endif
 
+  TERN_(BELTPRINTER, do_blocking_move_to_xy(0.00, 50.00));
+
   // Slow Load filament
   if (slow_load_length) unscaled_e_move(slow_load_length, FILAMENT_CHANGE_SLOW_LOAD_FEEDRATE);
 
@@ -606,7 +608,7 @@ void resume_print(const_float_t slow_load_length/*=0*/, const_float_t fast_load_
   ui.pause_show_message(PAUSE_MESSAGE_RESUME);
 
   // Check Temperature before moving hotend
-  ensure_safe_temperature();
+  ensure_safe_temperature(DISABLED(BELTPRINTER));
 
   // Retract to prevent oozing
   unscaled_e_move(-(PAUSE_PARK_RETRACT_LENGTH), feedRate_t(PAUSE_PARK_RETRACT_FEEDRATE));

Marlin/src/feature/powerloss.cpp

@@ -386,7 +386,7 @@ void PrintJobRecovery::resume() {
           ), dtostrf(z_now, 1, 3, str_1));
     gcode.process_subcommands_now(cmd);
 
-  #else
+  #elif DISABLED(BELTPRINTER)
 
     #if ENABLED(POWER_LOSS_RECOVER_ZHOME) && defined(POWER_LOSS_ZHOME_POS)
       #define HOMING_Z_DOWN 1

Marlin/src/inc/SanityCheck.h

@@ -1470,6 +1470,13 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
 #endif
 
 /**
+ * Some things should not be used on Belt Printers
+ */
+#if BOTH(BELTPRINTER, HAS_LEVELING)
+  #error "Bed Leveling is not compatible with BELTPRINTER."
+#endif
+
+/**
  * Probes
  */