Diagnostics

The Diagnostics page gives you an in-depth overview of your printer's health, performance, and condition over time.

Go to: https://localhost:3443/#diagnostics

Health score

Each printer calculates a health score from 0–100 based on:

Factor	Weight	Description
Success rate (30d)	30%	Proportion of successful prints in the last 30 days
Component wear	25%	Average wear on critical components
HMS errors (30d)	20%	Number and severity of errors
Calibration status	15%	Time since last calibration
Temperature stability	10%	Deviation from target temperature during printing

Score interpretation:

• 🟢 80–100 — Excellent condition
• 🟡 60–79 — Good, but some things should be checked
• 🟠 40–59 — Reduced performance, maintenance recommended
• 🔴 0–39 — Critical, maintenance required

History

Click the health graph to see the score's development over time. Large drops may indicate a specific event.

Telemetry graphs

The telemetry page shows interactive graphs for all sensor values:

Available datasets

• Nozzle temperature — actual vs. target
• Bed temperature — actual vs. target
• Chamber temperature — ambient temperature inside the machine
• Extruder motor — current draw and temperature
• Fan speeds — toolhead, chamber, AMS
• Pressure (X1C) — chamber pressure for AMS
• Acceleration — vibration data (ADXL345)

Navigating the graphs

1. Select Time period: Last hour / 24 hours / 7 days / 30 days / Custom
2. Select Printer from the dropdown
3. Select Dataset to display (multiple selection supported)
4. Scroll to zoom in on the timeline
5. Click and drag to pan
6. Double-click to reset zoom

Exporting telemetry data

1. Click Export on the graph
2. Select format: CSV, JSON, or PNG (image)
3. The selected time period and dataset are exported

Bed Mesh

The bed mesh visualization shows the flatness calibration of the build plate:

1. Go to Diagnostics → Bed Mesh
2. Select printer
3. The latest mesh is displayed as a 3D surface and heatmap:
   • Blue — lower than center (concave)
   • Green — approximately flat
   • Red — higher than center (convex)
4. Hover over a point to see the exact deviation in mm

Scan bed mesh from UI

1. Click Scan now (requires the printer to be idle)
2. Confirm in the dialog — the printer starts automatic calibration
3. Wait until the scan is complete (approx. 3–5 minutes)
4. The new mesh is displayed automatically

Heat up first

Bed mesh should be scanned with a heated bed (50–60°C for PLA) for accurate calibration.

Component wear

See Wear Prediction for detailed documentation.

The Diagnostics page shows a condensed overview:

• Percentage score per component
• Next recommended maintenance
• Click Details for full wear analysis