# Marlin 3D Printer Firmware * [Configuration & Compilation](/Documentation/Compilation.md) * Supported * [Features](/Documentation/Features.md) * [Hardware](/Documentation/Hardware.md) * [GCodes](/Documentation/GCodes.md) * Notes * [Auto Bed Leveling](/Documentation/BedLeveling.md) * [Filament Sensor](/Documentation/FilamentSensor.md) ## Quick Information This RepRap firmware is a mashup between Sprinter, grbl and many original parts. 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... ## Current Status: Bug Fixing [![Coverity Scan Build Status](https://scan.coverity.com/projects/2224/badge.svg)](https://scan.coverity.com/projects/2224) [![Travis Build Status](https://travis-ci.org/MarlinFirmware/Marlin.svg)](https://travis-ci.org/MarlinFirmware/Marlin) What bugs are we working on: https://github.com/MarlinFirmware/Marlin/milestones/Bug%20Fixing%20Round%201 ## Contact __IRC:__ #marlin-firmware @freenode __Google Hangouts:__ https://plus.google.com/hangouts/_/event/cps5d0ru0iruhl6ebqbk9dpqpa4?authuser=0&hl=da ## 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. [![Flattr this git repo](http://api.flattr.com/button/flattr-badge-large.png)](https://flattr.com/submit/auto?user_id=ErikZalm&url=https://github.com/MarlinFirmware/Marlin&title=Marlin&language=&tags=github&category=software)