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First things first: you're going to need a copy of Marlin.

If you are upgrading an existing 3D printer to use a Titan, you should try to get a copy of your current firmware from your printer's manufacturer.

If you're building a new printer, or simply want to upgrade to the latest version of Marlin, download it at

If you download a fresh version of Marlin you'll have to configure more settings than the ones mentioned in this guide so that it will work well with your printer.