Klipper reports: ERROROption 'mesh_min' in section 'bed_mesh' must be specified.

#klipper I have bought a Ratrig machine from a friend. After network configuration and installation i am faced with this error message. I have attached CFG files and a printscreen on the interface. Please help!
39 Replies
TheTik
TheTik•3mo ago
I would update ratos to the latest 2.1 and use the new configurator. Keep the old printer.cfg for possible reference. Could also delete the two bed_mesh sections in your printer.cfg and restart. The mesh should get recreated at the start of each print
Erik_
Erik_OP•3mo ago
I have used RatOS-v2.0.2 on my flashed micro sd card. Where can i find 2.1? When i search for bed_mesh in the printer.cfg, i find several places with ctr+f. I have attached a picture for you to see. Do you want me to delete this?
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Erik_
Erik_OP•3mo ago
or these
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TheTik
TheTik•3mo ago
the three at the end yeah. 60c, 65, ratos
cgrr
cgrr•3mo ago
Or better yet, flash the 2.1 version: https://github.com/Rat-OS/RatOS/releases/tag/v2.1.0-RC2
GitHub
Release RatOS-v2.1.0-RC2 · Rat-OS/RatOS
Documentation is underway, 2.1.0-RC2 is marked as a pre-release until it's ready. Update all packages after connecting RatOS to your wifi network. Changes from RC1 Tons of bugfixes for boards,...
Erik_
Erik_OP•3mo ago
I have flashed and installed the new 2.1 version. However, i get this error message after the installation. See the attached picture.
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blacksmithforlife
blacksmithforlife•3mo ago
now you need to use the configurator to setup your board and other settings
Erik_
Erik_OP•3mo ago
Is there a guide sir? I think i found the configurator. But i have to ask my friend what brand of computer board he has tomorrow.
TheTik
TheTik•3mo ago
Should be able to look at it, but might be easier to ask
Erik_
Erik_OP•3mo ago
I can see on the card "Octopus Pro" But on the configurator there are like 4 different Octopus Pro to choose from. How can i know which one it is?
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blacksmithforlife
blacksmithforlife•3mo ago
look at the big chip on the board. It will have the version printed on it
Erik_
Erik_OP•3mo ago
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Erik_
Erik_OP•3mo ago
I think i can read STM32F446ZET6. So i think it might be the Octopus Pro 446 then.
Erik_
Erik_OP•3mo ago
So i am done with the configurator now. But i still have an orange error message. Should i do something in the printer.cfg?
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Erik_
Erik_OP•3mo ago
I tried starting the machine and press restart on the interface and got another error message,
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Erik_
Erik_OP•3mo ago
Could it be somewhere here?
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TheTik
TheTik•3mo ago
If you fully reboot the mainboard and rpi, do you still get an error?
Erik_
Erik_OP•3mo ago
Yes. I ejected the power from the wall and plugged it in again after a while.
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TheTik
TheTik•3mo ago
Your extruder has the wrong thermistor selected
blacksmithforlife
blacksmithforlife•3mo ago
you do have your bed thermistor plugged in, correct?
Erik_
Erik_OP•3mo ago
I took some pictures for you to determine if it is correct.
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TheTik
TheTik•3mo ago
The error is about the extruder, not the bed though?
Erik_
Erik_OP•3mo ago
Yea. I thought you wanted to know if the bed thermistor was plugged in. Sorry. How do i change the thermistor for the extruder?
TheTik
TheTik•3mo ago
in printer.cfg under [extruder]
Erik_
Erik_OP•3mo ago
In which picture sir
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TheTik
TheTik•3mo ago
the one with the square brackets like in my message (the latter) Do you know what type of thermistor is on your extruder? any labels?
Erik_
Erik_OP•3mo ago
I can ask my friend
TheTik
TheTik•3mo ago
What hotend do you have? hm, if your printer.cfg can be trusted you have a rapido
Erik_
Erik_OP•3mo ago
Phaetus Rapido Plus Hotend 2 UHF
TheTik
TheTik•3mo ago
The sensor_type under extruder says "PT1000" which should be correct then. I think you have some bad wiring of the thermistor between the hotend and your board. Double check the wiring and take some careful pictures of where the wires are coming out, and what port they are connected to on the mainboard.
Erik_
Erik_OP•3mo ago
Seems to be okay?
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TheTik
TheTik•3mo ago
With a temp value that far out of whack, either the thermistor is broken, or the wires are shorted.
Erik_
Erik_OP•3mo ago
Okay Thanks for your help! Ill ask my friend for further help.
TheTik
TheTik•3mo ago
Best of luck!
blacksmithforlife
blacksmithforlife•3mo ago
also note, it is bad practice to stack wires like you have on your PSU
Erik_
Erik_OP•3mo ago
I have found the issue. The cables were inserted in the wrong connections.
TheTik
TheTik•3mo ago
That would do it! Congrats on finding the cause 🎉
Erik_
Erik_OP•2mo ago
Are there any instructions on how to caliberate the building plate for the first time?

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