Open-source 3D printing

Compact. Portable. Capable.

Positron is the ultimate portable 3D printer — lightweight, reliable, and fully open source, with an assembly approachable for makers of every skill level.

Positron printer

Our Printers

Build your own Positron, Proton, and more chaotic projects.

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Building a Positron kit

Documentation

Got the kit? Time to build! Guides, the Wiki, and source files.

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Positron community

Discord Community

Join our Discord for additional resources, support, and community mods.

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About Us

Positron 3D

We are a group of creators with a passion for breaking the mold. The Positron printer was meant to be an ultra-portable solution, so that makers can take their craft mobile.

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Positron printer detail

Official Project Partners

The makers and manufacturers who help bring Positron to life.

Positron v3.2 Features

Award-nominated by design

The Positron Printer has been nominated for the 3D Printing Industry Awards — Best Desktop FFF 3D Printer of the Year. Here's why:

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Fast & Reliable

Using high-quality hardware and a lightweight toolhead, the Positron pushes plastic at up to 30 mm³/s with its high-flow hotend.

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Compact

The Positron sports the largest printer-size-to-print-volume ratio of any printer on the market — perfect for tight spaces, or packing in as many as possible.

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Easily Repairable

Most components are accessible within just a few screws, so almost any part can be replaced or repaired as needed.

3D Printing Industry Awards 2024 — Nominated, Desktop FFF