You shouldn't have to be a material scientist to 3D print. In JusPrin 2, you tell AI how you want a part printed, and AI works out the slicer settings, so you don't need to know what volumetric flow rate is. When a print comes out wrong, you show AI a photo. AI finds the problem, changes the settings and slices again.

JusPrin 2 is a free, open-source slicer built on OrcaSlicer 2.5.0, for Windows, Mac and Linux. Put in your own AI key and it is completely free: you pay only your AI provider for what you use. Or use JusPrin's own AI, which specializes in 3D printing and starts you with 500 free credits. If you already work in an AI tool such as Claude Code or Codex, that tool can drive JusPrin too.

Download JusPrin 2 and give it a try.

If you've upgraded a printer host to Debian 13 "Trixie" — or you're running a board like the BTT CB1 on a recent Armbian image — you may find that your Obico webcam feed stops working. The premium (high-FPS) stream never starts, and the logs are not especially forthcoming about why.

The short version: Trixie ships no janus package, and Obico's bundled fallback binaries don't cover Debian 13 either. So you have to build Janus yourself — and there are four separate ways to build it that look successful but leave you with a Janus that Obico can't use.

Back in 2020, we launched The Spaghetti Detective — the first AI-powered failure detection for 3D printing. Since then, our AI has watched over 80 million hours of printing and caught more than 800,000 real failures across the Obico community.

A few months ago, we invited beta testers to try a completely rebuilt detection engine. Hundreds of you signed up, ran prints, and gave us invaluable feedback. The verdict was clear: the new model is a significant leap forward.

Starting May 1, 2026, the next-gen AI model is available to all AI Premium subscribers — yes, we're also renaming the Pro plan to AI Premium.

I built Obico (originally The Spaghetti Detective) because I had a print fail overnight and wanted a way to catch that kind of thing automatically. What started as a personal project has grown into a platform with over 800,000 detected failures across our user community.

In that time, we've learned a lot about what AI-based failure detection can and can't do — and we want to share that honestly.

One of the most persistent misconceptions we see about Obico is that it "requires a paid subscription." It doesn't. We've offered a free tier since day one, and we intend to keep it that way.

This guide breaks down exactly what you get at every pricing tier so you can decide what's right for your setup.

When you connect a webcam to a cloud service, privacy is a legitimate concern. We want to be straightforward about exactly what Obico collects, why we collect it, and what choices you have.

This isn't a legal document — it's a plain-English explanation of how we handle your data.

Every 3D printing enthusiast — from first-time Ender 3 owners to seasoned Voron builders — runs into print quality problems. The difference between a frustrating hobby and a rewarding one is knowing how to diagnose and fix issues quickly.

This guide covers every common 3D printing defect with clear symptoms, root causes, and step-by-step fixes. Use the table of contents below to jump to your specific problem, or read through to build a complete troubleshooting toolkit.

Nobody wants to come back to their 3D printer and find a failed print — especially after hours of waiting. That's why 3D printer failure detection has become one of the most important features in modern 3D printing. But which tools actually work, and how do they compare?

In this guide, we'll compare every major 3D printer failure detection solution available in 2026 — from AI-powered cloud monitoring to built-in hardware sensors — so you can choose the best option for your setup.

Quick Comparison​

If you've ever walked back to your 3D printer only to find a tangled mess of plastic instead of your model, you've experienced what the 3D printing community calls "spaghetti." It's one of the most common and frustrating 3D printing failures — your printer keeps extruding filament, but the plastic has nowhere to go, creating a bird's nest of wasted material.

The good news? Spaghetti is almost always preventable once you understand what causes it. In this guide, we'll cover every cause of spaghetti in 3D printing and give you step-by-step fixes for each one.

Back in 2020, we pioneered AI-powered failure detection for 3D printing. We called it The Spaghetti Detective. It was a little bit magic, a little bit sci-fi, and it saved a whole lot of print jobs from turning into plastic pasta.

Since then, we never stopped innovating. We launched Nozzle Ninja (our first-layer AI sentinel), and even introduced JusPrin to handle the slicing for you.

But today? Today is about going back to our roots and making them stronger.

We are officially reinventing our core failure detection with a next-generation AI model.