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.

Introduction: Navigating the Hidden Complexity of OrcaSlicer Profiles​

For many 3D printing enthusiasts, OrcaSlicer stands out as a powerful and versatile tool, offering granular control over print settings and advanced calibration features. However, the journey to achieving perfect prints is often marred by a common and deeply frustrating challenge: managing profiles. What might appear to be a straightforward administrative task—organizing, backing up, and migrating printer, filament, and process settings—frequently becomes a significant source of wasted time, repeated calibrations, and a pervasive sense of insecurity regarding the integrity of painstakingly configured settings. This is particularly true for those operating multiple 3D printers or experimenting with a wide array of custom filaments.

This pervasive difficulty can be attributed to what can be described as the "Hidden Complexity" of OrcaSlicer's profile management system. The underlying file structure and the inheritance model of profiles are often not intuitive, making it challenging to understand how settings are stored, linked, and affected by software updates or account interactions. This handbook aims to demystify these complexities, providing an authoritative, step-by-step guide to mastering OrcaSlicer profiles. From understanding their core architecture and implementing robust organization strategies to creating custom filament profiles, executing reliable backups, and troubleshooting the perplexing issue of disappearing profiles, this guide offers a clear roadmap to empower you and enhance your 3D printing journey.

Frustrated with "subjective" flow rate calibration in OrcaSlicer? This quick guide will help you ditch the guesswork and objectively master your flow rate for consistently perfect prints.

Why Flow Rate Matters (The Short Version)​

Flow rate (Extrusion Multiplier, EM) controls how much filament your nozzle extrudes. Get it right, and your prints are strong, dimensionally accurate, and smooth. Get it wrong, and you'll face issues like:

• Over-extrusion: Wasted material, blobs, stringing, rough surfaces, weakened parts.
• Under-extrusion: Gaps, weak layers, poor surface finish, holes.

Source: help.prusa3d.com

Achieving high-quality 3D prints relies heavily on precise printer calibration. Without it, you'll encounter common issues like stringing, poor bed adhesion, and inaccurate dimensions. Calibration is the foundation for consistent, reliable, and excellent print results.

OrcaSlicer is an advanced, open-source slicing software with powerful built-in calibration tools. This guide will help you use the latest stable releases of OrcaSlicer (typically versions 2.3.0 or recent 2.3.1 nightly builds) to fine-tune your printer. We'll cover Temperature, Flow Rate, Pressure Advance, Retraction, Tolerance, Max Volumetric Speed, and Vertical Fine Artifacts (VFA) calibrations. These tests are designed to be performed in a specific order, progressively improving your print quality.

Understanding OrcaSlicer: Your Calibration Hub​

OrcaSlicer offers advanced features like precise wall control, "sandwich mode" for better surface finish, "polyholes conversion" for complex geometries, and seamless integration with Klipper, OctoPrint, and PrusaLink. It provides granular control while remaining user-friendly with drag-and-drop design and pre-made printer profiles.

Accessing Calibration Tools in OrcaSlicer​

Most calibration features are in the "Calibration" menu. After completing any calibration test, always create a new project. This ensures OrcaSlicer exits calibration mode and resets parameters for your next prints.