Custom Snapmaker U1 Firmware

Monitoring

Available in: Extended firmware

Expose printer metrics for integration with monitoring systems like Grafana, Home Assistant, or DataDog. Track print progress, temperatures, and operational data.

Available Features

Moonraker API Built-in Metrics

Always enabled on all printers running Moonraker. This is a core feature required by client applications:

• Fluidd, Mainsail
• Orca, Snapmaker Orca
• Mobileraker, Octoapp, OctoPrint
• Home Assistant Moonraker integration

You can create custom metrics collection using the Moonraker API.

Klipper Metrics Exporter

Exposes Klipper metrics via HTTP endpoint for OpenMetrics/Prometheus systems.

Disabled by default. Enable in extended2.cfg:

[monitoring]
klipper_exporter: :9101

Then reboot the printer.

Collecting Metrics with Home Assistant

Setup:

1. Install Home Assistant Community Store (HACS)
2. Install Moonraker Integration via HACS
   • Installation instructions
3. Add Moonraker integration and connect to your Snapmaker U1

Once configured, you can view metrics in Home Assistant or forward them to other systems like DataDog.

Collecting Metrics with OpenMetrics/Prometheus

Prometheus and Grafana

The prometheus-klipper-exporter is already running on your printer when enabled. Setup instructions: https://github.com/scross01/prometheus-klipper-exporter/tree/main/example

Point Prometheus to your printer’s IP address and port (no Docker setup needed on the printer).

DataDog Agent

Use DataDog’s OpenMetrics integration to collect Prometheus metrics.

Setup:

1. Create /etc/datadog-agent/conf.d/openmetrics.d/snapmaker_u1.yaml on the computer running DataDog Agent
   • Example config: overlays/firmware-extended/99-monitoring/examples/example_datadog_snapmaker_u1.yaml
2. Edit config to set your printer’s IP address
3. Restart DataDog Agent

Example Dashboard: https://p.datadoghq.com/sb/750c84c6f-0e38a89ca620e6047171edbfb15b756e