This is a firmware only for the 4.2.3 board.
If you have Marlin 2.0.6.1 as original firmware then you likely have the 4.2.3 board but it is more safe to actually open the printer and check.
Use at your own risk! I am not responsible for anything that happens when you use this source or the compiled firmware for your printer!
This firmware has bigger buffers, so you have to put
- M400
at the top of the end G-code in your slicer, so that it empties the buffers before cooling down!
This builds on the Marlin 2.0.x LTS branch and Marlin's example config for the Ender 2 Pro.
Some config settings have been copied from the Creality 2.0.6.0 GitHub repository, for example the jerk default settings. You can also change those, if needed.
The benchy prints in the same time and looks identical to me, compared to the original 2.0.6.1 firmware (thanks to the same jerk settings).
PID default settings are from Marlin's example because it does not over shoot during initial heating and the temperature seems to be even more constant than the original firmware. But you can of course do your own PID auto-tuning or manually change the values.
This firmware has additional features enabled. Not all features have been tested by me!
Notable features compared to the original 2.0.6.1 firmware:
- builds on Marlin 2.0.9.5
- bigger buffers, should work more reliably with OctoPrint
- manual 9-point mesh bed leveling, also via menu
- assisted 4-point bed tramming via menu
- host action commands
- host prompt support
- long filename support
- advanced pause
- advanced OK
See the commits for details.
Additional documentation can be found at the Marlin Home Page. Please test this firmware and let us know if it misbehaves in any way. Volunteers are standing by!
Marlin 2.0 takes this popular RepRap firmware to the next level by adding support for much faster 32-bit and ARM-based boards while improving support for 8-bit AVR boards. Read about Marlin's decision to use a "Hardware Abstraction Layer" below.
Download earlier versions of Marlin on the Releases page.
Before building Marlin you'll need to configure it for your specific hardware. Your vendor should have already provided source code with configurations for the installed firmware, but if you ever decide to upgrade you'll need updated configuration files. Marlin users have contributed dozens of tested example configurations to get you started. Visit the MarlinFirmware/Configurations repository to find the right configuration for your hardware.
To build Marlin 2.0 you'll need Arduino IDE 1.8.8 or newer or PlatformIO. Detailed build and install instructions are posted at:
Platform | MCU | Example Boards |
---|---|---|
Arduino AVR | ATmega | RAMPS, Melzi, RAMBo |
Teensy++ 2.0 | AT90USB1286 | Printrboard |
Arduino Due | SAM3X8E | RAMPS-FD, RADDS, RAMPS4DUE |
ESP32 | ESP32 | FYSETC E4, E4d@BOX, MRR |
LPC1768 | ARM® Cortex-M3 | MKS SBASE, Re-ARM, Selena Compact |
LPC1769 | ARM® Cortex-M3 | Smoothieboard, Azteeg X5 mini, TH3D EZBoard |
STM32F103 | ARM® Cortex-M3 | Malyan M200, GTM32 Pro, MKS Robin, BTT SKR Mini |
STM32F401 | ARM® Cortex-M4 | ARMED, Rumba32, SKR Pro, Lerdge, FYSETC S6, Artillery Ruby |
STM32F7x6 | ARM® Cortex-M7 | The Borg, RemRam V1 |
SAMD51P20A | ARM® Cortex-M4 | Adafruit Grand Central M4 |
Teensy 3.5 | ARM® Cortex-M4 | |
Teensy 3.6 | ARM® Cortex-M4 | |
Teensy 4.0 | ARM® Cortex-M7 | |
Teensy 4.1 | ARM® Cortex-M7 | |
Linux Native | x86/ARM/etc. | Raspberry Pi |
- Submit Bug Fixes as Pull Requests to the (bugfix-2.0.x) branch.
- Follow the Coding Standards to gain points with the maintainers.
- Please submit your questions and concerns to the Issue Queue.
The Issue Queue is reserved for Bug Reports and Feature Requests. To get help with configuration and troubleshooting, please use the following resources:
- Marlin Documentation - Official Marlin documentation
- Marlin Discord - Discuss issues with Marlin users and developers
- Facebook Group "Marlin Firmware"
- RepRap.org Marlin Forum
- Facebook Group "Marlin Firmware for 3D Printers"
- Marlin Configuration on YouTube
Marlin is constantly improving thanks to a huge number of contributors from all over the world bringing their specialties and talents. Huge thanks are due to all the contributors who regularly patch up bugs, help direct traffic, and basically keep Marlin from falling apart. Marlin's continued existence would not be possible without them.
Regular users can open and close their own issues, but only the administrators can do project-related things like add labels, merge changes, set milestones, and kick trolls. The current Marlin admin team consists of:
- Scott Lahteine [@thinkyhead] - USA - Project Maintainer 💸 Donate
- Roxanne Neufeld [@Roxy-3D] - USA
- Keith Bennett [@thisiskeithb] - USA 💸 Donate
- Peter Ellens [@ellensp] - New Zealand 💸 Donate
- Victor Oliveira [@rhapsodyv] - Brazil
- Chris Pepper [@p3p] - UK
- Jason Smith [@sjasonsmith] - USA
- Luu Lac [@shitcreek] - USA
- Bob Kuhn [@Bob-the-Kuhn] - USA
- Erik van der Zalm [@ErikZalm] - Netherlands 💸 Donate
Marlin is published under the GPL license because we believe in open development. The GPL comes with both rights and obligations. Whether you use Marlin firmware as the driver for your open or closed-source product, you must keep Marlin open, and you must provide your compatible Marlin source code to end users upon request. The most straightforward way to comply with the Marlin license is to make a fork of Marlin on Github, perform your modifications, and direct users to your modified fork.
While we can't prevent the use of this code in products (3D printers, CNC, etc.) that are closed source or crippled by a patent, we would prefer that you choose another firmware or, better yet, make your own.