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GeoGebra 3D Calculator

Free 3D graphing calculator that turns equations and solids into STL files

GeoGebra 3D Calculator is a free browser tool for printed math surfaces and solids for classrooms. Free for non-commercial use such as school and personal projects; commercial use needs a separate paid license from GeoGebra. Exports STL; no account needed. Last checked 26 September 2026.

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Opens geogebra.org

At a glance

Price: Free for non-commercial use such as school and personal projects; commercial use needs a separate paid license from GeoGebra
Runs on: Browser
Exports: STL
Multicolor: No, single color
Account: Not needed
Open source: No
Skill level: Some learning curve
Best for: Printed math surfaces and solids for classrooms
Selling prints: On a paid plan GeoGebra's license covers non-commercial use only and says any commercial use needs a separate paid license agreement with GeoGebra. It does not mention 3D prints by name, so ask GeoGebra before selling prints.
How we checked: Opened the generator Opens without an account; Download as > 3D print (.stl) shows width, length and height in cm, a units-to-cm scale, a 3.5 mm thickness and a Filled Solid checkbox
Last checked: 26 September 2026

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Sources: GeoGebra 3D Calculator, 3D Printing with GeoGebra (book), GeoGebra license and FAQ (checked 26 September 2026)

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What is GeoGebra 3D Calculator?

GeoGebra 3D Calculator is a free browser tool that graphs equations and geometric solids in 3D and saves what you see as an STL file for printing. It comes from GeoGebra, the math platform many schools already use. You can type a function such as z = (x^2 - y^2)/4 or a parametric surface, or build shapes from the Tools panel, which has cubes, pyramids, prisms, cylinders, cones, spheres and surfaces of revolution. The main menu's Download as list offers 3D print (.stl) next to GeoGebra, PNG and Collada files.

The export dialog is what makes it usable for printing. It shows the model's width, length and height in centimeters, lets you set how many graph units equal one centimeter, and gives thin curves and surfaces a thickness in millimeters (3.5 mm by default). There is also a Filled Solid checkbox. Every visible object goes into the file, so hide the axes, the base plane and helper points first.

It suits math teachers who want students to hold a saddle surface or a pyramid, and makers who enjoy mathematical shapes. Beyond ready-made files you need to be comfortable with equations or geometry tools. A 3D printing book on geogebra.org walks through the export and has samples such as a trefoil knot and a Möbius strip, and the Open menu lets you browse shared GeoGebra resources without an account.

What you can make

Surfaces from equations, such as a saddle z = f(x, y)
Geometric solids like cubes, pyramids, prisms, cylinders and spheres
Surfaces of revolution
Parametric shapes such as Möbius strips and trefoil knots

How to use GeoGebra 3D Calculator

Open geogebra.org/3d and type an equation, pressing the right arrow key to leave each exponent, or build a shape with the Tools panel
Hide the axes, the base plane and any helper objects you do not want printed
Open the main menu, choose Download as and then 3D print (.stl)
Check the size, scale and thickness, then click Download
Slice the STL, adding supports under overhanging surfaces

What you'll need to print it

Filament and parts that suit what you make with GeoGebra 3D Calculator.

Matte PLA

Multicolor PLA

6 x 2 mm magnets

Also handy

Print removal and cleanup tools

Bambu Lab Print Finishing Kit Bambu Lab
Bambu Lab Maker's Supply ESD Stainless Steel Tweezers Set Bambu Lab

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GeoGebra 3D Calculator pros

Free in the browser, and the 3D print (.stl) export opens without signing in
The export sets print size in cm, a units-to-cm scale and a thickness in mm, so open surfaces and lines come out with real walls
A 3D printing book on geogebra.org explains the export and has sample files such as a trefoil knot and a Möbius strip

GeoGebra 3D Calculator cons

You need to type equations or use geometry tools; it is a math app, not a maker app
Everything visible is exported, so axes, planes and helper objects must be hidden by hand first
Single-color STL only, and selling prints or other commercial use needs a paid license from GeoGebra