Motor drivers louder after new extruder install
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Hi guys, I'm pretty new to Duet3d and 3d printing in general. I decided to outfit my heavily modified ender 3 pro (duet 2 wifi, mosquito hotend, various 3d printed add-ons) with a bondtech lgx. (Because why not) I had some trouble with the extruder motor until I realized it was wired wrong after getting a "phase not connected" error and checking with a multimeter. I was able to get it to spin, but it was much louder than the other motors and made a whining noise when idle. Annoying, but not the end of the world. Upon homing I found out that the other motors (x, y, and z axes) made the same sound when moving and whined when idle. The only thing I can think of that could've have caused this was damage to the drivers, but the only motor I touched was the one for the extruder. Maybe I pulled out the connector for the extruder motor while it was on, I don't remember. Didn't think that would affect the other drivers though. Any ideas? The motors seem to work just fine, but having my printer be quiet is a must for me. Below is my config.g file and a video of the printer homing all axes:
Config.g file:
; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Ender 3 Pro" ; set printer name M918 P1 E4 F2000000 ; configure direct-connect display ; Network M551 P"lol no I'm not telling you the password to my 3d printer" ; set password M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S0 ; physical drive 0 goes backwards M569 P1 S0 ; physical drive 1 goes backwards M569 P2 S1 ; physical drive 2 goes forwards M569 P3 S1 ; physical drive 3 goes forwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E406.81 ; set steps per mm M566 X1200.00 Y1200.00 Z24.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X9000.00 Y9000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z100.00 E5000.00 ; set accelerations (mm/s^2) M906 X700 Y700 Z700 E600 I50 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X235 Y235 Z260 S0 ; set axis maxima ; Endstops M574 X1 Y1 Z0 S1 ; set active high endstops ; Z-Probe M307 H3 A-1 C-1 D-1 ; disable heater on PWM channel for BLTouch M558 P9 H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X21.33 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height M557 X15:215 Y15:195 S20 ; define mesh grid ; Heaters M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit M305 P1 T500000 B4723 C1.196220e-7 ; set thermistor + ADC parameters for heater 0 M143 H1 S450 ; set temperature limit for heater 0 to 450C M305 P0 T100000 B4092 R4700 ; set thermistor + ADC parameters for heater 1 M143 H0 S150 ; set temperature limit for heater 1 to 150C ; Fans M106 P0 S1.0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P1 S1.0 I0 F500 H-1 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P2 S1 I0 F500 H1:0 T45 ; set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on ; Tools M563 P0 D0 H1 F0 ; 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 ; Custom settings are not defined ; Miscellaneous M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power lossAny help is greatly appreciated! Thanks in advance!
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So you're saying that after you changed the extruder motor out, all of your motors are now louders/whining at idle? No other changes?
I can't really hear anything in the video.
M906 X700 Y700 Z700 E600 I50 ; set motor currents (mA) and motor idle factor in per centYou can reduce the idle factor further to reduce the idle noise. Maybe 30%.
It's probably louder after homing because the motors are actually only activated once a movement command is sent. After the idle time out of 30 seconds it should reduce the current and the whine should be a bit less.
You can also try reducing the motor current overall. 700ma would have the most power, but if you're more concerned about noise during a print and don't print very fast you could likely reduce that to 500ma.
Beyond that, you can try tuning stand still noise of the drivers.
https://duet3d.dozuki.com/Wiki/Reducing_Stand-Still_Noise
If the motors are all currently working and now error messages are being generated I think your drivers are likely ok. Unplugging them while powered is a good way to damage them though, so try not to do that again.
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@Phaedrux not just while idle. Whining noise when idle and they're much louder while moving too. You have to turn the volume up a lot in the video to hear but it's much louder irl. I tried changing the voltage in 100 mA increments from 400-800 mA but the sound didn't change at all. Also, the whining noise doesn't go away until I the motors move or I turn the printer off; long after the 30s timer. Thanks for your advice and the link you sent though, I'll check that out.
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