3D Printing Basics
Equipment Used
Introduction
3D printing is one of the most accessible ways to start making physical objects. At The Coven, we have six Prusa MK3s printers and a growing resin printer collection.
What You Will Learn
- How to prepare a 3D model for printing
- Slicer basics with PrusaSlicer
- First layer calibration
- Common troubleshooting
Before You Start
- Complete the 3D printer safety orientation (required)
- Install PrusaSlicer on your laptop or use our workstations
- Choose a simple model for your first print (we recommend a calibration cube)
Step 1: Find or Design a Model
Browse Printables or Thingiverse for beginner-friendly models. Look for:
- No supports needed
- Simple geometry
- Short print time (under 2 hours)
Step 2: Slice the Model
Open PrusaSlicer and import your STL file. Key settings for beginners:
| Setting | Value | Why |
|---|---|---|
| Layer Height | 0.2mm | Good balance of speed and quality |
| Infill | 20% | Strong enough for most parts |
| Supports | None | Avoid if possible for first prints |
Step 3: Load Filament
Ask a staff member to help you load filament if it is your first time. Always check the filament type (PLA, PETG, etc.) and bed temperature requirements.
Step 4: Start the Print
Send the sliced G-code to the printer via SD card or our OctoPrint network. Watch the first layer carefully: if it does not stick, stop the print and ask for help.
Troubleshooting
Stringing: Increase retraction distance slightly. Warping: Use a brim and ensure the bed is clean. Layer Shifts: Check belt tension and print speed.
Next Steps
Once you have a few successful prints, try:
- Multi-material printing with our MMU2S units
- Designing your own models in Fusion 360 (free for hobbyists)
- Advanced materials like PETG and ASA