Printorial
How to: Slicing
By the end of this chapter, you’ll understand what slicing is, why it is essential, and how to prepare
your 3D model for printing using slicing software.
We will use Bambu Studio as our example, but the basics apply to nearly
all slicers.
Imagine you have downloaded or created a 3D model - great! But your printer doesn’t understand a 3D shape like a human does. It needs very specific instructions. Slicing is the process of turning your 3D model into layers and generating a step-by-step set of instructions your printer can follow.
Imagine you have baked a cake - a tall and beautiful one. Now, you want to recreate that cake, one slice at a time. But here is the catch: Your 3D printer cannot look at the whole cake and understand how to build it all at once. It needs instructions that say: Here is what the bottom layer looks like. Now here is the next one. Now the one above that.
The Step-by-Step Cake Analogy
Bambu Studio is a free slicer software designed to work perfectly with Bambu Lab printers. Even if you’re using another printer, the layout and features are very similar to other slicers like Cura or PrusaSlicer.
Why choose it?
Quick start steps
TIP: Bambu Studio usually chooses great defaults. You don’t have to touch every setting at first!
Term | What it Means | What to Pick |
---|---|---|
Layer Height | How thick each printed layer is | 0.2 mm for beginners (balance between quality & speed) |
Infill | How solid the inside of your print is | 15–20% is fine for most objects |
Support | Extra material added underneath overhangs | Off (if your model doesn’t need it); On if your model has floating parts |
Brim | A flat “skirt” around your print to help it stick | On (helps avoid first layer failures) |
What is infill?
Think of infill as the “inside” of your printed object. Imagine you’re building a wall:
Infill does the same for your 3D print. Most objects don’t need to be 100% solid, so we only print a solid outer shell and fill the inside with a pattern.
Why use infill?
How does it work in slicing software?
In Bambu Studio, you can choose:
What Are Support Structures?
Imagine trying to print the letter T: the horizontal line at the top doesn’t have anything underneath it. If you just let the printer go, it would try to print “in the air”— which won’t work! Support structures are temporary “scaffolding” that hold up parts of your model that would otherwise sag or fall during printing.
When do you need support
Here is one simple rule: If a part of your model overhangs more than 45° from vertical, it probably needs support.
Types of Support in Bambu Studio
Slicer: The software that prepares your model for the printer
G-Code: The instructions your printer follows to build your model
Layer Height: The thickness of each layer—smaller = finer detail.
Infill: Interior structure density (0–100%).
Support: Temporary scaffolding under overhangs.
Test the knowledge you have accumulated from this chapter by completing this interactive Quiz Test!