Open Source C++ 3D Printing Software
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C++ 3D Printing Software
View 202 business solutionsBrowse free open source C++ 3D Printing Software and projects below. Use the toggles on the left to filter open source C++ 3D Printing Software by OS, license, language, programming language, and project status.
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OrcaSlicer
G-code generator for 3D printers
OrcaSlicer is an open-source slicing application for FFF and FDM 3D printers, built as a community-driven evolution of Bambu Studio. It focuses on precision, calibration, speed, and broader printer compatibility for users who want more control over their prints. The software includes tools for slicing models, generating supports, tuning print parameters, and preparing high-quality G-code. It is popular among users who want advanced calibration workflows and flexible settings beyond basic slicer defaults. OrcaSlicer is also maintained with active community involvement, documentation, and frequent development builds. Its main value is helping 3D printing users optimize print quality across many machines while keeping the workflow accessible and open source. -
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MeshLab
The open source mesh processing system
MeshLab is an open-source, portable, and extensible system for the processing and editing of unstructured large 3D triangular meshes. It is aimed to help the processing of the typical not-so-small unstructured models arising in 3D scanning, providing a set of tools for editing, cleaning, healing, inspecting, rendering and converting this kind of meshes. MeshLab is mostly based on the open source C++ mesh processing library VCGlib developed at the Visual Computing Lab of ISTI - CNR. VCG can be used as a stand-alone large-scale automated mesh processing pipeline, while MeshLab makes it easy to experiment with its algorithms interactively. The open source system for processing and editing 3D triangular meshes. It provides a set of tools for editing, cleaning, healing, inspecting, rendering, texturing and converting meshes. It offers features for processing raw data produced by 3D digitization tools/devices and for preparing models for 3D printing. -
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PrusaSlicer
G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)
PrusaSlicer is an open-source slicing application that converts 3D models into printable instructions for 3D printers. It supports common model formats such as STL, OBJ, and AMF, then prepares them as G-code for FFF printers or image layers for resin-based mSLA printing. The software is based on Slic3r and has been expanded by Prusa Research with a strong focus on usability, print quality, and advanced configuration. It works with Prusa printers but is also compatible with many modern RepRap-style machines and controller systems. PrusaSlicer is useful for beginners who need reliable default profiles and experienced users who want fine control over print behavior. Its main strength is balancing accessible workflows with deep technical settings for serious 3D printing. -
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Bambu Studio
PC Software for BambuLab and other 3D printers
Bambu Studio is a feature-rich slicing application designed to provide a smooth, project-based 3D printing workflow. It is built on PrusaSlicer and Slic3r foundations while adding Bambu Lab’s own interface, optimized slicing behavior, and printer-focused tools. The software is especially suited for Bambu Lab printers, but its open-source base also makes it relevant to the broader 3D printing community. It helps users prepare models, manage projects, adjust slicing settings, preview toolpaths, and send print-ready files to compatible machines. Bambu Studio emphasizes ease of use without removing advanced controls needed for more complex prints. Its main value is giving users a polished slicing environment that connects model preparation, slicing, and printer operation in one place. -
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Marlin
Optimized firmware for RepRap 3D printers based on Arduino platform
Marlin is a popular open source firmware for the RepRap family of 3D printers. It is straightforward, reliable, extensible and adaptable, which is why it is used by many respected commercial 3D printer vendors as well as hobbyists. It runs on inexpensive 8-bit Atmel AVR micro-controllers, with added support for 32-bit and ARM-based boards. Marlin builds can be small enough for use on a headless printer with only modest hardware, and features can be enabled as-needed. -
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ESP3D
FW for ESP8266/ESP8285/ESP32 used with 3D printer
This firmware allows not only to have a cheap bridge between Wifi and serial, but also to have a web UI to configure wifi, to monitor 3D printer and even control it, and to make things easy, UI is fully customizable without reflashing FW. Firmware should work with any 3D printer firmware (repetier/marlin/smoothie ware using GCODE) if the serial connection has a correct setup. I currently use it with my personal flavor of repetier for Due based boards. The web interface files are present in the data directory but UI has its own repository ESP3D-WEBUI. Use GPIO2 to the ground to reset all settings in a hard way, 2-6 sec after boot / not before!! Set GPIO2 to ground before boot change boot mode and go to special boot that do not reach FW. Currently, boot takes 10 sec - giving 8 seconds to connect GPIO2 to GND and do a hard recovery for settings. Complete configuration by web browser (Station or Access point) or by Serial/telnet commands. -
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Dust3D
Dust3D is a cross-platform open-source 3D modeling software
Dust3D is brand new 3D modeling software. It lets you create watertight 3D models in seconds. Use it to speed up character modeling for games, 3D printing, and so on. Auto UV unwrapping, auto rigging with PBR Material support, pose and motion authoring all in one. 3D Modeling in a blink, try it now! Dust3D is a cross-platform open-source modeling software. It helps you create a 3D watertight model in seconds. Use it to speed up your character modeling in game making, 3D printing, and so on. Yes, it's free. And it's cross-Platform, no matter you are on Windows, Linux, or MacOS, the same experience you'll get. Give it a try. With Dust3D, you'll see yourself finish a game asset in a blink! Dust3D also supports export your model as FBX and glTF format, so that you can then import the files into software like Unreal Engine, Unity, and Godot for further development. -
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PotterDraw
Design your own pottery for 3D printing in full color
PotterDraw is a free 3D software application for designing and visualizing pottery. It’s useful for creating cylindrical shapes such as pots, flasks, vases, bowls, plates, cups, glasses, goblets, or anything similar. The outer wall of the pot is drawn using a spline, which consists of one or more curved or linear segments. The inner wall is generated automatically. PotterDraw can export files suitable for 3D printing. It can also map synthesized or user-specified textures onto the pot. Mesh and texture properties can be modulated by oscillators for more complex effects, and the modulations can be animated to create videos. -
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Wuweido 3D CAD
Free 3D Mobile CAD
Wuweido is a professional 3D CAD on your phone or tablet. More than just a viewer, dozens of modeling tools are provided to create and modify 3D models in the most natural way. Wuweido allows you to import and export models in standard CAD format. Unlike Onshape™ on Cloud, Wuweido is running locally on your device and it's more like Rhino™ 3D on mobile. Wuweido is powered by OPEN CASCADE. OPEN CASCADE is an incredible powerful geometry kernel innovating quickly. Wuweido is inspired by CAD Assistant. Modeling features: 1. Draft creation tools: Line, Poly Line, Arc, Spline, Circle, Ellipse, Rectangle, Regular Polygon. 2. Primitive Solid creation tools: Box, Cone, Truncated Cone, Cylinder, Sphere, Torus, Wedge, Truncated Wedge, Pyramid, Truncated Pyramid. 3. Sweep modeling tools: Extrude, Revolve, Loft, Pipe, Path 4. Boolean operation tools: Intersect, Subtract, Union, Xor, Fuse 5. Transform tools: Move, Rotate, Mirror, Scale -
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ImatiSTL
Fix STL files for 3D printing
ImatiSTL is a C++ library for applications that need to finely post-process raw polygon meshes represented by STL files. It is particularly useful in 3D printing scenarios: the repairing functions provided by ImatiSTL bridge the gap between printable meshes and real-world meshes with diverse potential defects and flaws (e.g. degenerate triangles, self-intersections, surface holes, ...). ImatiSTL provides both functions for local mesh repairing and methods for global remeshing. Local repairing is useful when the available data must remain exactly as it is in the input STL file, whereas global remeshing may fix even highly corrupted meshes at the cost of a small distortion in the resulting fixed mesh. -
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Curv
A language for making art using mathematics
Curv is a programming language for creating art using mathematics. It's a 2D and 3D geometric modelling tool that supports full colour, animation and 3D printing. Curv is a simple, powerful, dynamically typed, pure functional programming language. Curv is easy to use for beginners. It has a standard library of predefined geometric shapes, plus operators for transforming and combining shapes. These can be plugged together like Lego to make 2D and 3D models. Coloured shapes are represented using Function Representation (F-Rep). They can be infinitely detailed, infinitely large, and any shape or colour pattern that can be described using mathematics can be represented exactly. Curv exposes the full power of F-Rep programming to experts. The standard geometry library is written entirely in Curv. Many of the demos seen on shadertoy.com can be reproduced in Curv, using shorter, simpler programs. Experts can package techniques used on shadertoy as high-level operations for use by beginners. -
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DarkLight Cover/Calibrator
DIY project to build a cover, flat panel or combo flip-flat panel
The DarkLight Cover/Calibrator (DLC) is a DIY project to build a motorized telescope cover, flat panel, or a combination flip-flat system. Its modular design supports various setups: a 12V light panel without a servo for a wall-mounted calibration panel, a servo-only cover for sky flats, or both integrated into a flip-flat mechanism. The DLC also includes optional dew heating to reduce extra equipment and cabling. With available drivers, it works with ASCOM or INDI. We’re excited to announce that the DarkLight Cover Calibrator project has officially moved to GitHub! 🔗 New GitHub Repository: 👉 https://github.com/10thTeeAstronomy/DarkLight_CoverCalibrator © Nathan Woelfle 2025. All Rights Reserved. Permission granted for personal and academic use only. Code may not be copied or used without proper credit. -
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The Fab@Home Project (http://www.fabathome.org) allows you to build your own fabber (3D printer/rapid prototyper), which can print almost anything, right on your desktop. The Fab@Home application is the interface between you and your fabber.
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HarmoniumUFO
A small interactive OpenGL program to explore spherical harmonics.
A small interactive OpenGL program to explore spherical harmonics. Special attention has been given to enable high resolution export so that artists may print the spherical harmonic on 3D printers. Exports OBJ and PLY formats. -
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Matter Master
Open source 3d printer slicer
Matter Master is an open source 3d printer slicer under development. The current state is not currently usable. Subscribe if you want to be contacted when the first release is ready. -
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OpenAPC
An open process control and laser engraving software solution
An extensive and multi-platform visualisation, process control and HMI application that supports many different devices via an open plug-in interface. Beside a visual GUI editor a debugger is part of the package. -
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Relativty
An open source VR headset with SteamVR supports for $200
Relativty is not a consumer product. We made Relativty in my bedroom with a soldering iron and a 3D printer and we expect you to do the same, build it yourself. We started Relativty because after watching Sword Art Online we wanted to make our own VR games. Thus Relativty supports SteamVR games and can be modified to add support for any DIY or off-the-shelf VR device. The room-scaling AI can be used with any camera, it tracks your body based on video input. Precision and freedom of movement are still very far from dedicated sensors, however, we believe that the model can be trained and improved by orders of magnitude. We designed an affordable motherboard that runs the Relativty Firmware, it is based on the Atmel SAM3X8E ARM Cortex-M3 processor and uses an MPU-6050 as it’s IMU. The naked PCB and the components to solder on, cost in total about 25 dollars. -
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easyslice
3d printing software
Easyslice is a software for stereo lithography 3d printing. You can preview your 3d model (.obj) ant then launch the printing process wich slice your model then display it in realtime with opengl and command your hardware.
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