prusa_exporter

Prusa Exporter or more known as prusa_exporter is a tool that allows users to expose metrics from the Prusa Research 3D printers. Its approach is to scrape metrics from Prusa Link REST API and also from UDP type of metrics. After gettng data it's simply exposes the metrics at /metrics/prusalink and /metrics/udp endpoints. You can also access http://localhost:10009.

I strongly recommend to connect printers via Ethernet as WiFi is not considered stable

UDP is configured in printer - Settings -> Network -> Metrics & Log

BEWARE - Altrough Prusa Mini sends some metrics via UDP as well, it's board does not contain needed sensors. So that means you are basically unable to get anything meaningful from those metrics.

• Host => address where prusa_exporter is running aka your computer / server
• Metrics Port => default 8514 same as prusa_exporter but you can change it
• Enable Metrics => enable
• Metrics List => list of enabled metrics
  • You can select all but it has actual impact on performance so choose wisely

List of metrics needed for dashboard (values differs between printers)

• ttemp_noz
• temp_noz
• ttemp_bed
• temp_bed
• chamber_temp
• temp_mcu
• temp_hbr
• loadcell_value
• curr_inp
• volt_bed
• eth_out
• eth_in

Of course you can configure metrics with gcode as well - that gcode can be found here as well

M330 SYSLOG
M334 192.168.20.20 8514
M331 ttemp_noz
M331 temp_noz
M331 ttemp_bed
M331 temp_bed
M331 chamber_temp
M331 temp_mcu
M331 temp_hbr
M331 loadcell_value
M331 curr_inp
M331 volt_bed
M331 eth_out
M331 eth_in

Prusa Link is configured with prusa.yml where you need to fill - Settings -> Network -> PrusaLink

• address of the printer
• username => default maker
• password for Prusa Link
• name of the printer
  • your chosen name => just use basic name non standard - type
• type - model of the printer
  • MK3.9 / MK4 / MK4S / XL / Core One ...

Dashboard

Pretty basic but nice and cozy dashboard for TV.

Roadmap

omega2

• working udp metrics with influx2cortex proxy
• working PrusaLink metrics
• development restarted 🎉

alpha1

• transfering prusa_metrics_handler codebase into prusa_exporter
• working UDP metrics via influxdb_exporter
• Core One / MK4S dashboard

alpha2

• working UDP metrics without any external tool
• split UDP and PrusaLink metrics
• update Go to 1.24
• drop Einsy support
• overall optimization
• update dashboard for Core One / MK4S

alpha3

• compress image of print
• rename udp metrics
• check PrusaLink metrics
• XL dashboard

alpha4

• PoC controlling printer via Grafana
• Mini dashboard

beta1

• start testing at Raspberry Pi 4 (if not feasible then 5)
• create tests
• reenable tests in pipeline

beta2

• improve stability and optimize code
• finalize controlling printer via Grafana

rc1

• create overview dashboard for all printers in system
• further testing

final

• 🎉