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MarlinFirmware/Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.

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Latest indexed
Aug 14, 2026
Last GitHub push
Jun 25, 2024
License
GNU General Public License v3.0
Contributing guide
Contributing guide
Code of conduct
Code of conduct
Dominant language
C++
PR merge metrics
 (Avg merge 31d 6h) (16 merged PRs in 30d)
Beginner labels
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