Permanently remove heated bed from printer and config.

[mmiscool]

I have a BossDelta 300 that I need to disable all the heated bed stuff for. The heated bed was removed from the machine.

;M307 H0 B0                                 ; Heated Bed (H2)
;M305 P0 T100000 B4388 R4700 H30 L0         ; Bed thermistor

In the config.g file I commented out the lines for the heated bed but I still get the following error and the heated bed still shows in the UI with a 2000C temp.
Error: Temperature reading fault on heater 0: unknown temperature sensor channel

My whole config.g file is as follows.

Please help.

M550 PBOSSdelta300                        ; Printer name
M555 P2                                    ; Gcode Output Type
M552 S1                                    ; Enable Wifi
M575 P1 B57600 S1                          ; PanelDue Comm Setup
G21                                        ; Work in millimeters
G90                                        ; Send absolute coordinates
 
M569 P0 S0                                 ; Drive 0 goes forwards (X)
M569 P1 S0                                 ; Drive 1 goes forwards (Y)
M569 P2 S0                                 ; Drive 2 goes forwards (Z)
M569 P3 S1                                 ; Drive 3 goes forwards (E0)
M569 P4 S1                                 ; Drive 4 goes forwards (E1)
 
M574 X2 Y2 Z2 S1                           ; set end stop configuration (all end stops at high end, active high)
 
;M665 R150 L351.1 B145 H510 X0 Y0 Z0        ; INJ. MOLDED ARMS delta radius, diagonal rod length, printable radius and homed height
M665 R150 L339.47 B145 H455 X0 Y0 Z0       ; CARBON FIBER ARMS delta radius, diagonal rod length, printable radius and homed height
                                           ; Y X Z are tower angle offsets
M666 X0 Y0 Z0                              ; end stop offsets in mm
 
M350 X16 Y16 Z16 E16:16 I1                 ; Set 16x micro-stepping w/ Interpolation
M92 X200 Y200 Z200                         ; Set axis steps/mm
M92 E182.0:182.0                           ; Set extruder steps/mm
 
M906 X1500 Y1500 Z1500 E1200:1200 I50      ; Set motor currents (mA) and idle current %
M201 X1400 Y1400 Z1400 E5000               ; Accelerations (mm/s^2)
M203 X10000 Y10000 Z10000 E18000           ; Maximum speeds (mm/min)
M566 X700 Y700 Z700 E2000                  ; Maximum instant speed changes mm/minute
 
M106 P0 H-1                                ; Part Cooling Fan
M106 P2 T50 S0.7 H1                        ; Heat sink fan
 
;M307 H0 B0                                 ; Heated Bed (H2)
;M305 P0 T100000 B4388 R4700 H30 L0         ; Bed thermistor
 
M305 P1 T100000 B4388 R4700 C7.06e-8 H30 L0     ; Hot end Thermistor
M563 P0 D0 H1                              ; Hot end (T0), drive (E0), heater (H1)
G10 P0 S0 R0                               ; Hot end operating and standby temperatures
 
;Dual Extrusion Code
M563 P1 D1 H1                              ; Hot end (T1), drive (E1), heater (H1)
G10 P1 S0 R0                               ; Hot end (1) operating and standby temperatures
 
;STRAIN GAGE PROBE
M558 P5 I0 A2 S0.05 R0.4 H20 F2500         ; Strain gauge probe settings
G31 P100 X0 Y0 Z-0.15                      ; Probe trigger and offset values Glass Plate Only
;G31 P100 X0 Y0 Z-0.5                       ; Probe trigger and offset values for FabLam Flex Spring Steel PEI on Glass
M557 R140 S30                              ; defualt bed mapping
M501                                       ; Load saved config values
T0                                         ; Select Tool 0
M375									   ; Load height map

[fcwilt]

Hi,

In your config.g file you have M501 which will load config-override.g.

What's in config-override.g?

Frederick

[mmiscool]

My config-override contains the following.

; config-override.g file generated in response to M500
; This is a system-generated file - do not edit
; Delta parameters
M665 L339.470 R158.955 H443.311 B145.0 X-1.155 Y0.379 Z0.000
M666 X-0.410 Y1.448 Z-1.038 A0.00 B0.00
; Heater model parameters
M307 H0 A90.0 C700.0 D10.0 S1.00 V0.0 B0
M307 H1 A340.0 C140.0 D5.5 S1.00 V0.0 B0
M307 H2 A340.0 C140.0 D5.5 S1.00 V0.0 B0
M307 H3 A340.0 C140.0 D5.5 S1.00 V0.0 B0
M307 H4 A340.0 C140.0 D5.5 S1.00 V0.0 B0
M307 H5 A340.0 C140.0 D5.5 S1.00 V0.0 B0
M307 H6 A340.0 C140.0 D5.5 S1.00 V0.0 B0
M307 H7 A340.0 C140.0 D5.5 S1.00 V0.0 B0
G10 L2 P1 X0.00 Y0.00 Z0.00
G10 L2 P2 X0.00 Y0.00 Z0.00
G10 L2 P3 X0.00 Y0.00 Z0.00
G10 L2 P4 X0.00 Y0.00 Z0.00
G10 L2 P5 X0.00 Y0.00 Z0.00
G10 L2 P6 X0.00 Y0.00 Z0.00
G10 L2 P7 X0.00 Y0.00 Z0.00
G10 L2 P8 X0.00 Y0.00 Z0.00
G10 L2 P9 X0.00 Y0.00 Z0.00
 

[Phaedrux]

@mmiscool said in Permanently remove heated bed from printer and config.:

M307 H0 A90.0 C700.0 D10.0 S1.00 V0.0 B0

Remove that from config-override.g

What firmware version?

You might also need to send a command to disable the bed heater.

RepRapFirmware also provides an optional 'H' parameter to set the hot bed heater number(s). If no heated bed is present, a negative value may be specified to disable it. M140 commands with H parameters would normally be used only in the config.g file.

https://duet3d.dozuki.com/Wiki/Gcode#Section_M140_Set_Bed_Temperature_Fast_or_Configure_Bed_Heater

M140 P0 H-1 I think

[mmiscool]

Thanks. As soon as I saw that line I commented it out. Testing now.

My firmware version is "2.02(RTOS) (2018-12-24b1)" with a duet 2 wifi

[fcwilt]

@mmiscool said in Permanently remove heated bed from printer and config.:

Thanks. As soon as I saw that line I commented it out. Testing now.

My firmware version is "2.02(RTOS) (2018-12-24b1)" with a duet 2 wifi

Your firmware is quite old.

You may want to consider updating - at least to 2.05.1.

The most recent firmware is 3.2.2 but updating to the v3 line takes a bit of work and there are changes that would need to be made to your config.g file.

Frederick