Voron OctoPrint Setup Guide — Alternative to Mainsail/Fluidd

Klipper Software Guide

While Mainsail and Fluidd are the most popular web interfaces for Klipper-based Voron printers, OctoPrint remains a powerful and mature alternative. With the OctoKlipper plugin, OctoPrint gains full Klipper support including G-code streaming, macro execution, and real-time status monitoring. For Voron owners who prefer OctoPrint's extensive plugin ecosystem, touch-friendly interfaces, or familiar workflow, this guide covers the complete setup process. Last updated: May 2025.

OctoPrint vs Mainsail vs Fluidd: A Comparison

When to Choose OctoPrint

• You want plugin-based features like enclosure temperature logging, filament manager (SpoolManager), or detailed print history analytics.
• You're migrating from a non-Klipper setup and already know OctoPrint.
• You want remote access solutions like OctoEverywhere or Polar Cloud.
• You need advanced plugin features not available in Mainsail/Fluidd.

When to Stick with Mainsail/Fluidd

• You want the leanest possible setup with minimal resource usage.
• You use KlipperScreen on a touchscreen display.
• You prefer the modern, speed-focused UI of Mainsail.
• You want native Klipper feature support without plugin dependencies.

Installation via KIAUH

KIAUH (Klipper Installation And Update Helper) is the recommended way to install OctoPrint alongside Klipper on your Voron's Raspberry Pi.

Step 1: Install KIAUH

cd ~
git clone https://github.com/dw-0/kiauh.git
cd kiauh
./kiauh.sh

Step 2: Install OctoPrint

From the KIAUH main menu:

1. Select option 1 (Install).
2. Choose OctoPrint from the list.
3. Select your Python version (Python 3 is recommended).
4. Let KIAUH complete the installation — it will set up the virtual environment, systemd service, and web server configuration.

Step 3: Install the OctoKlipper Plugin

After OctoPrint is running, access the web interface at http://voron-ip:5000 and complete the initial setup wizard. Then:

1. Go to Settings > Plugin Manager.
2. Search for OctoKlipper and click Install.
3. Alternatively, install via SSH:

cd ~/octoprint/venv
./bin/pip install octoprint_klipper

4. Restart OctoPrint.

Step 4: Configure OctoKlipper

Go to Settings > OctoKlipper and configure:

• Klipper socket path: /tmp/printer (or /var/run/klipper/klipper.sock)
• Moonraker URL: http://localhost:7125
• Enable virtual printer: Leave unchecked (for testing only)
• Update Klipper config on connect: Check this to sync settings

Click Save and restart OctoPrint. You should now see Klipper temperature readings and status in OctoPrint.

Manual Installation (Without KIAUH)

If you prefer to install manually or already have Klipper running:

# Install OctoPrint
sudo apt update
sudo apt install python3-pip python3-dev python3-setuptools python3-venv git
mkdir ~/octoprint
cd ~/octoprint
python3 -m venv venv
./venv/bin/pip install octoprint

# Install OctoKlipper plugin
./venv/bin/pip install octoprint_klipper

# Create systemd service
sudo wget https://raw.githubusercontent.com/foosel/OctoPrint/master/scripts/octoprint.service -O /etc/systemd/system/octoprint.service
sudo systemctl enable octoprint.service
sudo systemctl start octoprint.service

Essential Plugins for Voron

OctoPrint's plugin ecosystem is its biggest advantage. Here are the most useful plugins for Voron printers:

Print Management

• OctoKlipper — Required. Bridges OctoPrint with Klipper/Moonraker.
• Print History — Tracks print times, filament usage, and success rates.
• SpoolManager — Tracks filament spools, remaining material, and usage statistics.
• Detailed Progress — Shows accurate time remaining estimates based on past prints.

Visual Enhancements

• Ultimaker Format Package — Adds M48 plug-in style temperature presets.
• Navbar Temp — Shows nozzle/bed temperatures in the top navigation bar.
• FullScreen Webcam — Toggles webcam to full-screen mode.
• Tab Order — Reorganizes OctoPrint tabs for better workflow.

Remote Access & Monitoring

• OctoEverywhere — Free remote access with AI print failure detection.
• Telegram — Sends print status updates to Telegram.
• DiscordRemote — Discord integration for print notifications and commands.
• OctoDash Companion — Companion plugin for OctoDash touch interface.

Safety & Maintenance

• TPLinkSmartPlug — Controls printer power via smart plug.
• Sinemia / Enclosure — Monitors enclosure temperature and humidity.
• Filament Sensor — Enhanced filament runout detection with resume support.
• Maintenance — Tracks printer maintenance intervals and part replacement.

Configuring OctoPrint for Voron

Printer Profile

Create a custom printer profile matching your Voron's build volume:

G-code Scripts

Configure OctoPrint's G-code scripts to use your Voron's START_PRINT and END_PRINT macros. Under Settings > GCODE Scripts:

• After print job completes: END_PRINT
• Before print job starts: (leave empty — use slicer's start G-code)
• Before print job is paused: PAUSE
• After print job is resumed: RESUME
• After print job is cancelled: END_PRINT

OctoPrint with Klipper: Known Limitations

• No native Klipper configuration editing. Unlike Mainsail/Fluidd, OctoPrint doesn't have a built-in editor for printer.cfg. You'll need to edit via SSH or mount the config directory.
• G-code viewer incompatibility. OctoPrint's built-in G-code viewer doesn't parse Klipper's virtual SD card output. Use the OctoKlipper Virtual SD support or disable the viewer.
• KlipperScreen doesn't work with OctoPrint. If you have a touchscreen display, you'll need Mainsail or Fluidd instead.
• Update manager access. Klipper's update manager is accessible via Moonraker's API but not from OctoPrint's UI. You'll need to use Mainsail/Fluidd for updates, or SSH directly.

Troubleshooting

OctoPrint Can't Connect to Klipper

Verify the Klipper socket exists:

ls -la /tmp/printer

If the socket file is missing, Klipper may not be running or the socket path is different. Check ~/printer_data/logs/klippy.log for errors. Also verify the OctoKlipper plugin is configured with the correct socket path.

Temperatures Not Displaying in OctoPrint

This is usually a Moonraker connection issue. Ensure Moonraker is running and accessible:

curl http://localhost:7125/printer/objects/query?temperature_sensor

If Moonraker responds but OctoPrint still shows no temperatures, restart the OctoKlipper plugin from OctoPrint's plugin settings.

Duplicated Macros or Commands

OctoPrint adds its own G-code scripts (like M104 and M140 for temperature commands) that can conflict with Klipper's handling. In OctoPrint's settings, under GCODE Scripts, clear any unnecessary scripts — let Klipper handle all temperature and motion commands.

OctoPrint Uses Too Much RAM on Pi

OctoPrint is more resource-intensive than Mainsail. On a Raspberry Pi 3B+ or older, this can cause issues. Mitigations:

• Disable unused plugins.
• Reduce webcam streaming resolution or frame rate.
• Disable the G-code viewer.
• Consider upgrading to a Pi 4 or Pi 5.

Conclusion

OctoPrint is a perfectly viable alternative to Mainsail and Fluidd for Voron printers running Klipper. The OctoKlipper plugin bridges the gap effectively, and OctoPrint's mature plugin ecosystem offers capabilities that the lighter-weight UIs don't match. The trade-offs are higher resource usage, lack of native config editing, and no KlipperScreen support. For Voron owners who value plugin extensibility and are willing to accept the extra overhead, OctoPrint is an excellent choice. For those who want a lean, modern, Klipper-native experience, Mainsail or Fluidd remain the default recommendations.