Beginner’s Guide to 3D Printing
- Calacrity
- Apr 9
- 2 min read
Updated: May 10
Welcome to the world of 3D printing! If you’re new to it, this guide will walk you through each step-from downloading your first model to holding your first printed object. Let's dive in!
📁 Step 1: Download a 3D Model
Before you can print, you need a 3D model file, typically in .stl or .obj format.
Some of our go to websites for 3D models -
Printables – High-quality files with user reviews.
Thingiverse – Large collection of free files.
Cults3D – Free and paid models
MakerWorld – Free models
📈 Step 2: Slice the Model
Slicing turns your 3D model into G-code that your printer understands.
Recommended Slicer Software:
Ultimaker Cura (Free & beginner-friendly)
Software Bambu Studio (Free & Advanced)
How to Slice:
Open the slicer and set up your printer (e.g., Ender 3).
Import your .stl file by dragging it into the slicer.
Adjust these basic settings:
Layer Height: 0.2 mm
Infill: 15-20%
Supports: Enable only if needed
Build Plate Adhesion: Use "Brim" to avoid warping
Click "Slice" and then "Save to SD Card" or export the G-code.
Step by step slicing process on Cura Slicer
🚀 Step 3: Prepare Your Printer
Before printing, make sure your printer is set up and ready.
Basic Prep Checklist:
Clean the Build plate with IPA.
Level the bed - Download the gcode for Ender here
Preheat the nozzle and bed (PLA: 200°C nozzle, 60°C bed)
Load the filament into the extruder
Insert your SD card or USB with the G-code file
💡 Step 4: Start Printing!
Select the G-code file from the printer’s menu
Watch the first few layers to make sure the print sticks well
Don’t leave it fully unattended the first time
🧼 Step 5: Post-Processing
Once your print is done:
Let the bed cool before removing your print
Use a scraper or spatula if needed
Clean up supports or brim if present
Sand and finish for smoother edges
✨ Bonus Tips for Beginners
Start with PLA – it’s the easiest filament to print with
Update your slicer software regularly
Use a glue stick or painter’s tape for better adhesion
Keep practicing! Failures are just learning steps
❤️ Happy Printing!
3D printing is as much about experimentation as it is about creation. Have fun, try new models, and don’t be afraid to tweak your settings as you go. Your journey has just begun!