Extruder Temp Of the charts

I have a new hotend from BTT , and there is no preconfigured file for it. The extruder temperture senor is off the charts. I get the error "MCU 'mcu' shutdown: ADC out of range" IOF I exclude the sensor_pin it wiil start but I have the temperture at 277°. I'm using a Btt42 and it connected to the TH0, I tried using ^toolboardPA3" instead of e_sensor_pin but it says it can not find that pin. In the manual the pin is PA3.
I put in Overrides this: max_temp: 350 rotation_distance: 3.433 full_steps_per_rotation: 200 filament_diameter: 1.750 max_extrude_only_velocity: 60 heater_pin: e_heater_pin sensor_type: ATC Semitec 104GT-2 sensor_pin: e_sensor_pin min_extrude_temp: 190 min_temp: 0 max_temp: 350
26 Replies
Yelti
Yelti11mo ago
Do you know what type of sensor it is? It could be that's it's a different sensor causing wrong values.
Synapsis
Synapsis11mo ago
I not sure but I tried almost all of them.
Yelti
Yelti11mo ago
What hotend is it? For the th0 of the ebb you need to use: toolboard:e_sensor_pin, otherwise it will expect to be on the octopus board th0
Synapsis
Synapsis11mo ago
Its a BTT Terminator If I use toolboard:e_sensor_pin I get a "MCU 'mcu' shutdown: ADC out of range This generally occurs when a heater temperature exceeds its configured min_temp or max_temp." Which I would I think is because its reading the temperature as 277° maybe. I think this maybe the sensor HT-NTC100K Thermistor Model: HT-NTC100K thermistor temperature sensor components,which have 1M & 2M cable. Specifications: Negative Temperature Coefficient (NTC) Thermistor Model: XNT000004 Temperature measurement head size: 3 * 15mm
Synapsis
Synapsis11mo ago
I'm still do not know for sure what type it is, I' waiting fro a replay from BTT. My other problem if I use e_sensor_pin the MCU shuts down I tried toolboard: PA3 which is the pin on the EBB, klipper will start bu tem is always off at 277°
Yelti
Yelti11mo ago
It seems to be a pt100 thermistor, then you need a max31865 chip on the ebb42. Maybe you can disassemble it and change the thermistor to your previous one
Synapsis
Synapsis11mo ago
I have the MAX 31865 my hemera worked fine with the preconfigured extruder in RatOS. Its this new one giving me problems, I fixed the Biqo mini probe, the neo pixels and now working ont the runot sensor. I can not test anything ntil I get tje extruder to work.
Yelti
Yelti11mo ago
You need something like this: sensor_pin: EBBCan: PA4 spi_bus: spi1a rtd_nominal_r: 100 rtd_reference_r: 430 rtd_num_of_wires: 2
Synapsis
Synapsis11mo ago
Thanks for your help. I have this [extruder] max_temp: 350 rotation_distance: 3.433 full_steps_per_rotation: 200 filament_diameter: 1.750 nozzle_diameter: 0.400 max_extrude_only_velocity: 60 heater_pin:e_heater_pin sensor_type: EPCOS 100K B57560G104F sensor_pin: toolboard: PA3 #e_sensor_pin min_extrude_temp: 190 min_temp: 0 max_temp: 350 pressure_advance: 0.06 control: pid pid_Kp: 21.527 pid_Ki: 1.063 pid_Kd: 108.982 All my pins on the toolboard are toolboard: XXX and all are working even the runout senore and motion sensor only the temp not woring and the sensor is set to a two wire NT100
Yelti
Yelti11mo ago
You still don't have the max config ant the pt100 settings That's your issue
Synapsis
Synapsis11mo ago
? ant?
Yelti
Yelti11mo ago
Typo😋
Synapsis
Synapsis11mo ago
😀 I have the max and min temp set
Yelti
Yelti11mo ago
So the thermistor is a pt100, so a special type, you need an extra max31865 chip on your ebb42.
Synapsis
Synapsis11mo ago
max:temp is 350 opps typo NT100 😀
Yelti
Yelti11mo ago
The max31865 chips is not a temperature setting.
Synapsis
Synapsis11mo ago
I have the EBB42 with the max chip
Yelti
Yelti11mo ago
Ok, then check your jumper settings on the ebb
Synapsis
Synapsis11mo ago
Whats crazy is with the hemera it all works I have 123 on 4 off for the 2 wire NT100 like I have on my hemera
Yelti
Yelti11mo ago
It seems you confuse a nt100 with a pt100
Synapsis
Synapsis11mo ago
I have a NT100 pt100 was a typo error
Yelti
Yelti11mo ago
Docs from btt say it's a pt100 You also need to use the pt100 port, not the th0
Synapsis
Synapsis11mo ago
I check my doc that came with it. WOW your right its a PT100 thanks now to find out how to config it Thanks so much Ok the AD8496 seems to be the one. thanks soo much . I see if BTT tell mes exactly which one it is.
Yelti
Yelti11mo ago
Good luck😀
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