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# Marlin 3D Printer Firmware
* [Configuration & Compilation](/MarlinFirmware/Marlin/blob/Development/Documentation/Compilation.md)
* Supported
* [Features](/MarlinFirmware/Marlin/blob/Development/Documentation/Features.md)
* [Hardware](/MarlinFirmware/Marlin/blob/Development/Documentation/Hardware.md)
* [GCodes](/MarlinFirmware/Marlin/blob/Development/Documentation/GCodes.md)
* Notes
* [Auto Bed Leveling](/MarlinFirmware/Marlin/blob/Development/Documentation/BedLeveling.md)
* [Filament Sensor](/MarlinFirmware/Marlin/blob/Development/Documentation/FilamentSensor.md)
## Quick Information
This RepRap firmware is a mashup between <a href="https://github.com/kliment/Sprinter">Sprinter</a>, <a href="https://github.com/simen/grbl/tree">grbl</a> and many original parts.
Bernhard Kubicek
committed
Derived from Sprinter and Grbl by Erik van der Zalm.
Sprinters lead developers are Kliment and caru.
Grbls lead developer is Simen Svale Skogsrud. Sonney Jeon (Chamnit) improved some parts of grbl
A fork by bkubicek for the Ultimaker was merged, and further development was aided by him.
Some features have been added by:
Lampmaker, Bradley Feldman, and others...
Bernhard Kubicek
committed
## Current Status: Bug Fixing
Bernhard Kubicek
committed
[](https://scan.coverity.com/projects/2224)
[](https://travis-ci.org/MarlinFirmware/Marlin)
What bugs are we working on: https://github.com/MarlinFirmware/Marlin/milestones/Bug%20Fixing%20Round%201
## Contact
Bernhard Kubicek
committed
__IRC:__ #marlin-firmware @freenode
__Google Hangouts:__ https://plus.google.com/hangouts/_/event/cps5d0ru0iruhl6ebqbk9dpqpa4?authuser=0&hl=da
Bernhard Kubicek
committed
## Licence
Marlin has a GPL license because I believe in open development.
Please do not use this code in products (3D printers, CNC etc) that are closed source or are crippled by a patent.
[](https://flattr.com/submit/auto?user_id=ErikZalm&url=https://github.com/MarlinFirmware/Marlin&title=Marlin&language=&tags=github&category=software)