What was once silent is now loud..



  • I used to have the printer running silently until I changed something in the firmware. Might've been current draw..

    I don't recall what it was but suggestions would be greatly appreciated!


  • administrators

    Please post your config.g file.



  • [[language]]
    ; Configuration file for Duet WiFi (firmware version 1.17 to 1.19)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Sun Nov 05 2017 22:28:13 GMT-0500 (Eastern Standard Time)
    
    ; General preferences
    M111 S0 ; Debugging off
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M555 P2 ; Set firmware compatibility to look like Marlin
    M665 R157 L397.1073 B175 H517 ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0 ; Put your endstop adjustments here, or let auto calibration find them
    M208 Z0 S1 ; Set minimum Z
    
    ; Endstops
    M574 X2 Y2 Z2 S1 ; Define active high microswitches
    M558 P1 X0 Y0 Z0 H5 F120 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
    G31 P600 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
    M557 R270 S20 ; Define mesh grid
    
    ; Drives
    M569 P0 S1 ; Drive 0 goes forwards
    M569 P1 S1 ; Drive 1 goes forwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S0 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I0 ; Configure microstepping without interpolation
    M92 X80 Y80 Z80 E80 ; Set steps per mm
    M566 X1200 Y1200 Z1200 E1200 ; Set maximum instantaneous speed changes (mm/min)
    M203 X18000 Y18000 Z18000 E1200 ; Set maximum speeds (mm/min)
    M201 X1000 Y1000 Z1000 E1000 ; Set accelerations (mm/s^2)
    M906 X1000 Y1000 Z1000 E800 I30 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout
    
    ; Heaters
    M143 S260 ; Set maximum heater temperature to 260C
    M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 1
    M307 H1 A1400.8 C122.4 D5.3 B0
    
    ; Tools
    M563 P0 D0 H1 ; Define tool 0
    G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
    G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
    
    ; Network
    M550 PTLM _Duet ; Set machine name
    M552 S1 ; Enable network
    M587 S"C170512D5CFB" P"9053393116" ; Configure access point. You can delete this line once connected
    M586 P0 S1 ; Enable HTTP
    M586 P1 S0 ; Disable FTP
    M586 P2 S0 ; Disable Telnet
    
    ; Fans
    M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
    M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
    M106 P2 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on
    
    


  • Looks like micro-stepping interpolation is turned off - try turning it back on (use I1 in M350 instead of I0)



  • Don't feel bad, I did the exact same thing after updating my firmware from 1.16(-ish…) to the current release version, and was scratching my head for a bit before finding the flipped bit in the Interpolation config line.

    This might have been a change implemented in the changes, and buried somewhere in the release notes?



  • @deckingman and @Hey_Allen are correct!

    Made the suggested change and it's running silently again! Thank you!!!



  • What's are the benefits of enabling micrtostepping with interpolation other than keeping the noise down?


  • administrators

    On delta printers, you may also get less moire. On other types of printer, probably no advantage.


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