How do I update my firmware to be compatible with the RTD Pt1000?
The RTD Pt1000 works natively with Marlin, Duet/RepRapFirmware (RRF), and Klipper.
Marlin
When compiling Marlin, choose temperature sensor #1047. If you want to print above 300°C, you will need to raise the maximum temperature value. If you are using Marlin 2.0.5.4 and older, you will need to change the thermistor table for thermistor 1047. Marlin 2.0.5.4 and older only have values up to 300°C. You will need to add more values to go to 500°C. Please follow the example below.
RRF
If you are using RRF, you must edit the M305 or M308 line in your config.g. RRF 2.x or earlier will use the M305 command while RRF 3.x will use the M308 command. The M305 command should look something like this:
M305 P1 X501
The 4700 value in the R field has different values for different Duet boards. You can find the value for your Duet board at the bottom of this page.
The M308 command should look something like this:
M308 S1 P"temp1" Y"PT1000"
The P field should be the name of the socket that the temperature sensor is being plugged into. You find more information to better configure your sensor by looking at the documentation provided for the M305 and M308 commands found in the Gcode Dictionary.
Klipper
When configuring Klipper, if you are directly connecting the RTD Pt1000 without an amplifier, use the following parameter when configuring your "printer.cfg" file. Klipper will default to a 4.7 kilo ohm pull-up resistor.
sensor_type: PT1000
Refer to documentation at Klipper3d.org PRIOR TO USE.Related Articles
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