Project Time: 30 minutes

In this project, you’ll be getting hands on and printing your very first part. For your first print, let’s start with something quick and easy: a one-piece carabiner. This model should print quickly, and most printers will have it finished in under 20 minutes.

Before you begin, make sure you’ve downloaded the model pack from the Idiot’s Guides website ( and have unzipped the folder so you can access the files. For this project and the subsequent projects, I’ll be using Repetier Host and Slic3r, because both are free and popular programs. However, if you’d prefer to use other software (or your printer requires it), the steps should still be pretty similar.

Preheat the Extruder ...

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