Bed temp on Leviathan
Hello.
I just switched from a Octopus 446 to Leviathan on my Minion. Everything is working great so far, but my bed temp is off. Shows 6c when it should be about 20c (same as extruder). Just out of curiosity I switched the hotend and bed wiring and the bed is showing correct in the hotend side, but now the hotend is showing around 6 in the bed side
Everything is fully updated as far as it'll go.
Any ideas?
Thanks!
Solution:Jump to solution
@miklschmidt it seems the Leviathan baord needs by default this setting
pullup_resistor: 220016 Replies
If the "bad" sensor is heated up like with a hair dryer or heat gun, does the reported temp go up or down?
It goes up
you need to consult the spec sheet of this board and find out whcih thermsitor is used, then you need to out that to your heater bed config
Hmm....They're all with 2k2 ohm pullup resistors. Bed is a Generic 3950 sensor
then add this resistor value to the config
Well that was easy enough lol.
Should I do a pull request for changing that? The board is supported by ratos but the pull up value isn’t correct for the bed temp
pullup_resistor: 2200
put that to your heater_bed configThat worked 🙂 but it should be added as default for the board since it’s supported
well, its actaully a heater bed thing. there is porbably a jumper on your baord where you can select this
No jumpers are available in the board to switch it, and the ratos config photo doesn’t list anything to change. Only jumpers it shows is for the fan voltage
Solution
@miklschmidt it seems the Leviathan baord needs by default this setting
pullup_resistor: 2200for the heater bed
Guess no one else really either uses this board yet or has reported it yet.
I’ll keep tinkering around to see if I find any other weirdness
Thanks for the help. Appreciate it
That's a new feature (currently only supported for hotends), need
development merged first 🙂ahh, wasnt aware this works only for hotends atm
Yeah it's currently a board property called "alternativePullupResistor", which needs to change to support multiple thermistor ports.