Beginners to 3D printing often face a range of challenges and struggles as they start their journey into this fascinating world of technology. Here are some common things that beginners often find challenging:

1. Bed Leveling: Achieving the correct bed leveling is crucial for successful prints. Beginners may struggle to ensure that the first layer adheres properly to the build surface.
2. Choosing the Right Settings: Understanding and configuring the myriad of settings in slicing software can be overwhelming. Beginners may find it challenging to select the optimal settings for their prints.
3. Print Adhesion: Ensuring that the print sticks to the bed without warping or coming loose during printing can be tricky, especially with certain materials like ABS.
4. Filament Loading: Loading and unloading filament correctly can be a struggle for beginners. Incorrect loading can lead to jams or inconsistent extrusion.
5. Calibrating Extrusion: Getting the right amount of filament extruded is vital. Over or under-extrusion can result in poor print quality.
6. Understanding Supports: Knowing when and how to use support structures for complex prints can be confusing for beginners.
7. Print Failures: Dealing with print failures and troubleshooting issues like stringing, layer separation, or misalignment can be frustrating.
8. Model Design and Modification: Creating or modifying 3D models to fit specific needs can be challenging for beginners who are not yet familiar with CAD (Computer-Aided Design) software.
9. Upkeep and Maintenance: Regular maintenance of the 3D printer, including cleaning, lubrication, and part replacement, can be a new and unfamiliar task.
10. Material Selection: Choosing the right filament material for a specific project can be daunting, as different materials have unique properties and requirements.
11. Patience: 3D printing requires patience, as even experienced users encounter failed prints and unexpected issues.
12. Cost Considerations: Budgeting for materials, replacement parts, and potential upgrades can be a concern for beginners.
13. Learning Curve: Learning 3D printing involves a significant learning curve, which can deter some newcomers.

To overcome these challenges, beginners often benefit from thorough research, online communities and forums, tutorials, and hands-on experience. Start with simple projects and gradually work up to more complex prints as skills improve. With time and practice, many of these initial struggles become less daunting, and beginners can unlock the full potential of 3D printing.