# Turn Arduino® UNO™ Q into your local 3D printing watchdog

DevFeed: [Turn Arduino® UNO™ Q into your local 3D printing watchdog](<https://devfeed.tech/articles/turn-arduino-unotm-q-into-your-local-3d-printing-watchdog-17453.md>)

Original publisher: [Read original article](<https://blog.arduino.cc/2026/09/14/turn-arduino-uno-q-into-your-local-3d-printing-watchdog/>)

Author: Arduino Team

Published: 2026-09-14T18:03:45Z

Content type: article

Language: en

Sources: [Arduino Blog](<https://devfeed.tech/sources/arduino-blog.md>)

Topics: [Arduino](<https://devfeed.tech/topics/arduino.md>), [Hardware](<https://devfeed.tech/topics/hardware.md>), [webcam](<https://devfeed.tech/topics/webcam.md>), [MQTT](<https://devfeed.tech/topics/mqtt.md>), [Home Assistant](<https://devfeed.tech/topics/home-assistant.md>), [API](<https://devfeed.tech/topics/api.md>), [Security](<https://devfeed.tech/topics/security.md>)

Tags: [3d-printer](<https://devfeed.tech/tags/3d-printer.md>), [3d-printer-watchdog](<https://devfeed.tech/tags/3d-printer-watchdog.md>), [3d-printing](<https://devfeed.tech/tags/3d-printing.md>), [3d-printing-watchdog](<https://devfeed.tech/tags/3d-printing-watchdog.md>), [anomaly-detection](<https://devfeed.tech/tags/anomaly-detection.md>), [api](<https://devfeed.tech/tags/api.md>), [arduino](<https://devfeed.tech/tags/arduino.md>), [cameras](<https://devfeed.tech/tags/cameras.md>), [edge-ai](<https://devfeed.tech/tags/edge-ai.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [mqtt](<https://devfeed.tech/tags/mqtt.md>), [privacy](<https://devfeed.tech/tags/privacy.md>), [security](<https://devfeed.tech/tags/security.md>), [uno-q](<https://devfeed.tech/tags/uno-q.md>)

## AI overview

This Arduino Blog article presents a local 3D-printing watchdog built with an Arduino UNO Q, a camera, and the FOMO-AD anomaly model through Arduino App Lab. It trains on images of normal prints, flags deviations, and can automatically pause a print through the Moonraker API after repeated anomaly detections. The system can also integrate with OctoPrint, send MQTT notifications to Home Assistant, and operate entirely on the local network for privacy and security.

## Source excerpt

A lot of newer 3D printers incorporate sophisticated sensor suites and cameras to detect problems with print jobs, like the dreaded "spaghetti failure." Those work pretty well and prevent wasted time, wasted filament, and even damage to the printer. But what if you don't have a printer with those features? Or if you want to [...] The post Turn Arduino® UNO™ Q into your local 3D printing watchdog appeared first on Arduino Blog.