Motor drivers louder after new extruder install
spectre256 last edited by Phaedrux
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:
; 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 loss
Any help is greatly appreciated! Thanks in advance!
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 cent
You 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.
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.
spectre256 last edited by spectre256
@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.
spectre256 last edited by
This post is deleted!