@owend I sure have, it is a nice guide that tells you how to connect a DHT22 sensor.

I have created a filament dryer heater that I need to run 24/7. I also would like to drive this heater off of humidity but from reading on here it doesn't look like I can do that. I currently don't use a heated bed as I let the heated chamber heat the bed up. So I have mapped the extra heater with M140 and using the temperature from the DHT22. Does anyone know of a better way to control this? Is it possible to control it by humidity? Thank you

@mrehorstdmd

Your blog is phenomenal! I have been trying to find information on these for about a month. I finally got them working but always wanting better.

@rabbit I set the rigidity of the motors (Parameter P01-03) to 22.

How do I change this parameter? Do I just buy a cable and download a program? I too am getting a salmon finish to my prints. I have a 2:1 reduction in the Y but not in the X. I would like to try to reduce the effects of this if possible with tuning. If not I may look into other motors or possible mechanical reduction.

@toastinator Yes I am using Duet 3 with 3 expansion boards. I run them on x,y and z axis.

I run these same motors on my printers, took me a long time to get them working correctly but I think I am close. I was getting inconsistent layer shifting until I started going crazy with the T parameters.

I am in bang bang mode are you suggesting switching to PID/PWM mode with a super low frequency?

@taylo708 Does anyone have an easy fix for this?

m115
FIRMWARE_NAME: RepRapFirmware for Duet 3 MB6HC FIRMWARE_VERSION: 3.3beta ELECTRONICS: Duet 3 MB6HC v1.01 or later FIRMWARE_DATE: 2021-01-20 16:37:22

m122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.3beta running on Duet 3 MB6HC v1.01 or later (standalone mode)
Board ID: 08DJM-956BA-NA3TJ-6JTD0-3S06T-1V86T
Used output buffers: 1 of 40 (23 max)
=== RTOS ===
Static ram: 149784
Dynamic ram: 90596 of which 24 recycled
Never used RAM 110268, free system stack 178 words
Tasks: NETWORK(ready,222) ETHERNET(blocked,117) HEAT(blocked,280) CanReceiv(blocked,887) CanSender(blocked,365) CanClock(blocked,326) TMC(blocked,49) MAIN(running,1120) IDLE(ready,20)
Owned mutexes:
=== Platform ===
Last reset 01:49:39 ago, cause: software
Last software reset at 2021-02-22 17:03, reason: User, GCodes spinning, available RAM 110268, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0044a000 BFAR 0x00000000 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
Aux1 errors 0,0,0
MCU temperature: min 45.4, current 45.6, max 46.0
Supply voltage: min 24.2, current 24.2, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
12V rail voltage: min 12.0, current 12.1, max 12.2, under voltage events: 0
Driver 0: position 0, standstill, reads 63181, writes 0 timeouts 0, SG min/max not available
Driver 1: position 0, standstill, reads 63181, writes 0 timeouts 0, SG min/max not available
Driver 2: position 0, standstill, reads 63182, writes 0 timeouts 0, SG min/max not available
Driver 3: position 0, standstill, reads 63182, writes 0 timeouts 0, SG min/max not available
Driver 4: position 0, standstill, reads 63182, writes 0 timeouts 0, SG min/max not available
Driver 5: position 0, standstill, reads 63181, writes 0 timeouts 0, SG min/max not available
Date/time: 2021-02-22 18:52:55
Slowest loop: 25.59ms; fastest: 0.05ms
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 25.0MBytes/sec
SD card longest read time 2.3ms, write time 3.3ms, max retries 0
=== Move ===
DMs created 125, maxWait 0ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamberHeaters = 2 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is idle in state(s) 0
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== CAN ===
Messages queued 2044, send timeouts 0, received 2092, lost 0, longest wait 4ms for reply type 6024, peak Tx sync delay 147, free buffers 48 (min 47)
=== Network ===
Slowest loop: 26.25ms; fastest: 0.02ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions Telnet(0), 0 sessions
HTTP sessions: 1 of 8
- Ethernet -
State: active
Error counts: 0 0 1 0 0
Socket states: 5 2 2 2 2 0 0 0```

; Configuration file for Duet 3 (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.1 on Wed Jan 13 2021 13:45:55 GMT-0500 (Eastern Standard Time)

; General preferences
G90                                           ; send absolute coordinates...
M83                                           ; ...but relative extruder moves
M550 P"DATA DRIVEN PERFORMANCE"               ; set printer name

; Network
M552 S1 192.168.254.57                                  ; Enable network
G4 S5
; Drives
M569 P40.0 R0 S0 T6:6:6:0                   ; physical drive 40 goes forwards
M569 P41.0 R0 S1 T6:6:6:0                   ; physical drive 41 goes forwards
M569 P42.0 R0 S0 T6:6:6:0                   ; physical drive 42 goes forwards
M569 P0.0 S1                                   ; physical drive 20 goes forwards
M584 X40.0 Y41.0 Z42.0 E0.0                 ; set drive mapping
M350 E16 I0                                 ; configure microstepping with interpolation
M92  X266.666 Y266.666 Z640.00 E130.00      ; set steps per mm
M350 E32
M566 X300.00 Y300.00 Z20.00 E30.00        ; set maximum Jerk (mm/min)
M203 X7000.00 Y7000.00 Z1000.00 E3000.00   ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z200 E2500             ; set accelerations (mm/s^2)                              
M906 E750 I30                               ; set motor currents (mA)
M84 S30                                     ; Disable motor idle current reduction

; Axis Limits
M208 X0 Y0 Z0 S1                              ; set axis minima
M208 X600 Y600 Z600 S0                        ; set axis maxima

; Endstops
M574 X1 S1 P"!20.io2.in"                      ; configure active-high endstop for low end on X via pin 124.io2.in
M574 Y1 S1 P"!io3.in"                         ; configure active-high endstop for low end on Y via pin io3.in
M574 Z1 S2                                    ; configure Z-probe endstop for low end on Z

; Z-Probe
M950 S0 C"20.io0.out"                        ; create servo pin 0 for BLTouch
M558 P9 C"^20.io0.in" H2 F120 T600          ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X30 Y90 Z2                          ; set Z probe trigger value, offset and trigger height
M557 X30:570 Y90:510 S28.5                     ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B3500 ; configure sensor 0 as thermistor on pin temp1
M950 H0 C"out0" T0                           ; create bed heater output on out0 and map it to sensor 0
M307 H0 R0.086 C1484.1 D36.00 B0 S1.00       ; disable bang-bang mode for the bed heater and set PWM limit
M570 H0 T40
M140 H0                                      ; map heated bed to heater 0
M143 H0 S120                                 ; set temperature limit for heater 0 to 120C
M308 S1 P"spi.cs0" Y"thermocouple-max31856" "K"   ; configure sensor 1 as thermocouple via CS pin spi.cs0
M950 H1 C"out1" T1                           ; create nozzle heater output on 124.out0 and map it to sensor 1
M307 H1 R2.808 C254.0 D9.08 B0 S1.00                             ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S350                                 ; set temperature limit for heater 1 to 350C
M308 S2 P"temp1" Y"thermistor" T100000 B3500; configure sensor 2 as thermistor on pin temp0
M950 H2 C"io1.out" T2                        ; create chamber heater output on out1 and map it to sensor 2
M307 H2 A11 C99000 D2000 B1 S1.00                ; enable bang-bang mode for the chamber heater and set PWM limit
M141 H2                                      ; map chamber to heater 2
M143 H2 S70                                  ; set temperature limit for heater 2 to 70C


; Fans
M950 F0 C"20.out1" Q500                      ; create fan 0 on pin 20.out1 and set its frequency
M106 P0 S0 H-1                                  ; set fan 0 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0                             ; define tool 0
G10 P0 X-30 Y0 Z0                               ; set tool 0 axis offsets
G10 P0 R0 S0                                  ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined

; Miscellaneous
M575 P1 S1 B57600                             ; enable support for PanelDue

I was running 3.3 beta1. I also have a 3.3 beta I’m not sure if they are different or not. I went back to 3.3 beta and am still getting the same parsing error.