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Prusa MK4/XL read strain gauge sensor data

MichaelW257MichaelW257
edited December 2024 in Questions & Answers
Hi,

We are currently in a research project and would like to read out the strain gauge values of the DMS of a Prusa MK4/XL that is used for nozzle probing and filament stuckage currently.
The display of the the printer can display the values so I am wondering if they could be read out also in the console?

Best regards
Michael

Comments

  • RepetierRepetier
    How is the value reported from the printer?
    Do you need a special command to get the value or is it included e.g. in temperature report which you can already show in console with ack disabled and temperature filter turned off.
  • MichaelW257MichaelW257
    Unfortunately we don't know. M105 filter turned off (Prusa XL, has 16 segmented bed heating elements/thermistors) reads the following data:

    Recv:14:38:27.960: T:25.00/0.00 B:24.27/0.00 C:-30.00/0.00 X0:26.00/36.00 A:36.88/0.00 T0:25.00/0.00 T1:25.00/0.00 T2:6.00/0.00 T3:6.00/0.00 T4:6.00/0.00 T5:6.00/0.00 @:0 B@:0 HBR@:0 @0:0 @1:0 @2:0 @3:0 @4:0 @5:0 B_0_0:24.50/0.00 B_1_0:24.30/0.00 B_2_0:24.10/0.00 B_3_0:24.20/0.00 B_0_1:24.20/0.00 B_1_1:24.30/0.00 B_2_1:24.40/0.00 B_3_1:24.10/0.00 B_0_2:24.30/0.00 B_1_2:24.40/0.00 B_2_2:24.30/0.00 B_3_2:24.10/0.00 B_0_3:24.20/0.00 B_1_3:24.40/0.00 B_2_3:24.30/0.00 B_3_3:24.30/0.00

    I tried to home Z and compare those values before/after hitting the bed but I assume the load cell values are not in there.

    While printing the live status of the sensor can be read on the MK4/XL LCD via:
    Tune --> Info --> Sensor Info --> Loadcell value
  • RepetierRepetier
    Looks like it is only showing temperatures. Looked into prusa gcode list
    https://help.prusa3d.com/article/buddy-firmware-specific-g-code-commands_633112#special-other-commands

    but did not find a candidate, so maybe it is not readable externally.
  • MichaelW257MichaelW257
    Me neither unfortunately...
    Thank You !
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