What is OctoPrint and Should You Use It?

Jackson B.

Remote Control Your Printer

OctoPrint is one of the most transformative upgrades you can add to a 3D printer. It is free, open source software that runs on a Raspberry Pi and turns your printer into a network connected machine that can be controlled and monitored from your phone, tablet, laptop, or desktop browser. Once you set it up, the entire printing workflow changes.

Instead of constantly moving SD cards between your computer and printer, G-code files are uploaded directly over WiFi. Instead of physically checking on prints every hour, you can monitor their progress remotely through a live webcam feed. Temperatures, print status, controls, and file management all become accessible through a web interface that feels dramatically more modern than the traditional “walk to printer and hope for the best” workflow.

For many people, OctoPrint is the point where their printer starts feeling less like a hobby gadget and more like a properly connected machine. OctoPrint is especially popular on Marlin based printers like the Ender 3, CR-10 series, and older Prusa systems that do not already include strong networking features.

For Klipper based printers, platforms like Mainsail and Fluidd now fill a very similar role. OctoPrint still supports Klipper, but the dedicated Klipper interfaces tend to integrate more deeply with Klipper specific features and controls. Regardless of the firmware being used, remote printer management has become one of the biggest quality of life improvements in modern 3D printing.

What OctoPrint Actually Does

At its core, OctoPrint allows you to:

• upload G-code files remotely
• start, pause, and cancel prints
• monitor printer temperatures live
• view print progress remotely
• manage files through a browser
• monitor prints through a webcam

Even the basic functionality alone removes a huge amount of friction from everyday printing. Where OctoPrint becomes especially powerful, though, is through its plugin ecosystem.

Popular additions include:

• print completion notifications
• Discord or Telegram alerts
• automatic timelapse generation
• filament usage tracking
• smart plug integration
• remote internet access
• AI-assisted failure detection
• printer statistics and history

The webcam monitoring alone saves an enormous amount of wasted time and filament. Instead of discovering six hours later that a print failed near the beginning and spent the entire night producing spaghetti, you can quickly check the live feed from your phone and stop the print immediately if something looks wrong. For anyone running longer prints regularly, that visibility becomes incredibly valuable rapidly.

Setup: What You Need

A Raspberry Pi remains the standard way to run OctoPrint.

Most users run it on:

• Raspberry Pi 3B+
• Raspberry Pi 4
• microSD card
• USB cable to the printer
• optional USB webcam

The OctoPi operating system simplifies the process significantly because it comes with OctoPrint pre-installed and largely pre-configured. In most cases, setup is surprisingly approachable even for beginners.

A webcam is optional but highly recommended. Even inexpensive webcams work perfectly well for print monitoring. Logitech webcams are particularly popular because they are reliable, affordable, and widely supported. Overall setup costs are usually fairly modest compared to the convenience gained, especially for anyone printing regularly.

OctoPrint vs Mainsail and Fluidd

As Klipper firmware has become more popular, interfaces like Mainsail and Fluidd have started replacing OctoPrint for many advanced users.

They serve a similar purpose but are designed specifically around Klipper’s capabilities and workflows.

Compared to OctoPrint, they generally offer:

• cleaner interfaces
• faster performance
• better macro integration
• advanced bed mesh visualisation
• easier pressure advance tuning
• stronger Klipper integration overall

Fluidd and Mainsail are both commonly installed through KIAUH, which simplifies the Klipper installation process considerably. For traditional Marlin printers, though, OctoPrint still remains one of the best and most established remote management platforms available.

Regardless of which system you choose, moving away from the SD card workflow is one of the biggest usability upgrades you can make to a printer setup. Once you experience remote uploads, live monitoring, and browser based controls, it becomes very difficult to go back. Stock up on filament from OzFDM and you'll have plenty to print once you've set up your remote monitoring workflow.