Is it possible work without heaters and sensors?

GiusepRap

I want program a cold extruder for ceramics
Regards
Giuseppe

achrn

I have a machine without any heaters, but actually I have defined sensors and a dummy heater so I can see if the board is overheating.

I also have a thermistor crimped into a sensor connector and plugged on the board, and then:

; record processor temperature as sensor 1
M308 S1 Y"mcu-temp" A"Processor"
; ambient temperature around board by 47k thermistor on 'bedtemp' connector 
; (projects past side of board, remote from processor and steppers)
M308 S2 P"bedtemp" Y"thermistor" T4701 B4266 C1.048787e-7 A"Ambient"
; sensor 3: overtemperature flag on stepper drivers (will report 0 for ok, 100 for warning or 130 for error
M308 S3 Y"drivers" A"Drivers"

; define heater 1 as using the processor sensor
; output is on the expansion header just to be somewhere innocuous out of the way
M950 H1 C"exp.heater7" T1
; specify a maximum temperature of 60C which will therefore be the graph scale in DWC
M143 H1 S60

This then has three sensors - one for the processor temperature, one for the air around the board, and one for the steppers drivers. It defines an out-of-the-way heater (with nothing connected), and in DWC the graph shows me a graph of processor temperature (which isn't very interesting, but tells me the board isn't overheating inside its enclosure).

I don't have any extruder at all, but you could use M302 to allow for extrusion regardless of temperature.

Phaedrux

There's no need to create multiple posts for the same question.

https://forum.duet3d.com/topic/30807/paste-estruder-configuration?_=1671579562280