# MK4duo 3D Printer Firmware for all Atmel AVR boards and Arduino Due ## Version 4.3.1x dev

Special thanks

• Scott Lahteine
• Wurstnase
• esenapaj
• bobc
• repetier
• developers of original Marlin

New features are:

• One version for all Atmel AVR boards and for Arduino Due or other boards based on Atmel SAM3X8E
• Stepping-algorithm optmized now for DRV8825 and A4988 (no need for double or quadstepping; no delays)
• High speed stepping of approx. 295.000 steps/s, if needed (maybe more with less DOUBLE_STEP_FREQUENCY?)

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MK4duo 3D Printer Firmware

• Configuration & Compilation
• Supported
  • Features
  • Hardware
  • GCodes
• Notes
  • Auto Bed Leveling
  • Filament Sensor
  • Ramps Servo Power
  • LCD Language - Font - System
• Version
  • Change Log

Configurator Tool Online

http://marlinkimbra.it

Quick Information

This version of Marlin was made to accommodate some requests made by the community RepRap Italy http://forums.reprap.org/index.php?349

The new features are:

• A single Firmware for all types of printers; Cartesian, Delta, MORGAN SCARA, MAKERARM SCARA, CoreXY, CoreXZ & CoreYZ and their reverse.
• The possibility of having only one hotend independently from the extruders that you have.
• The addition of the 6th extruder.
• Management Color Mixing Extruder
• System Management MKr4 for 4 extruders width just two drivers and 8 relay.
• System Management MKr6 for 6 extruders width just two drivers and 8 relay.
• Management Multyextruder NPr2, 4/6 extruders with only two engines.
• Management Dual Extruder DONDOLO.
• Adding commands to facilitate purging of hotend.
• Step per unit varied for each extruder as well as the feedrate and the acceleration.
• Added Autocalibration for DELTA
• Added Autocalibration 7 points for DELTA (Similar RepRapFirmware)
• Adding Debug Dryrun used by repetier.
• Added total Power on time writed in SD CARD.
• Added total Power consumption writed in SD CARD.
• Added total filament printed writed in SD CARD.
• Added anti extruder idle oozing system.
• Added Hysteresis and Z-Wobble correction (only cartesian printers).
• Added support reader TAG width MFRC522
• Added support NEXTION lcd touch
• Added Cooler and Hot Chamber
• Added Laser beam and raster base64
• Added CNC Router
• Addes Mesh Bed Level (MBL)
• Added Stop and Save for Restart (SSR)
• Added Nozzle Clean Features
• Added Nozzle Park Features
• Added RGB LED
• Added Case Light
• Added ABL or MBL leveling fade height
• Added save in EEPROM ABL or MBL
• Added Door switch

Credits

The current MarlinKimbra dev team consists of:

• MagoKimbra - Alberto Cotronei (https://github.com/MagoKimbra)

More features have been added by:

• Nico [@wurstnase]
• Giutrec
• Drakelive
• MrGoblins
• Franco (nextime) Lanza (https://git.nexlab.net/u/nextime)

License

MK4duo is published under the GPL license because I believe in open development. Do not use this code in products (3D printers, CNC etc) that are closed source or are crippled by a patent.