SOLVED!
(I think, at least my last 3 hour print was flawless)
Motor currents were set as...
M906 X800 Y1100 Z1400 E650 I30
Stepper specs show max curr/coil is 2amps. So I bumped the current up to 1.5 (M906 Y1500) amps and gave it a try.
Seems to have solved the problem. So this brings up another question...
Q. Just because the motor is rated at 2 amps, in order to be conservative, how does one decide upon the best/optimal current setting to use?
Is there any failure mode (stepper Motors) that could be causing this? I could try replacing the motor.
There has also been some indication on the web that increasing the current has helped others with this problem. I forget how I came up with the original currents. I'll be researching these.
Taking a look I can see that I'm running....
Board: Duet 3 MB6HC (MB6HC)
Firmware: RepRapFirmware for Duet 3 MB6HC 3.4.6 (2023-07-21)
Hmmm 5 months old - well that is suspicious. I'm thinking it's time to upgrade. The notes for 3.4.7 says
Fixed incorrect line number (off by 1) within a while-loop in conditional GCode. Could this be related? I don't recall what was installed before 3.4.6 (most likely 3.4.5).
Would those here recommend going back to 3.4.5 or jumping to RC1 3.5.0?
I've been using this Creatbot F430 ,converted to use a Duet3 6hc, for about 18 months. Recently it has begun to randomly shift layers in the Y axis. Slowing down the print jobs seem to help but does not eliminate the problem. The mechanicals (belt slack, pulleys et all) seem to be solid an free. I need help in narrowing down the problem (failing stepper, firmware, slicer, cabling, etc).
For slicer, I used to use Simplify3d but then started having issues after they updated it. Now I am using Cura. I've seen layer shifting with both slicers.
Here is my conifg.g
; Configuration file for Duet 3 (firmware version 3.3)
; executed by the firmware on start-up
;
; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"F430" ; set printer name
; Network
M551 P"F430" ; set password
M552 S1 ; enable network and set IP address DHCP
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet
; Drives
M569 P0.1 S0 ; physical drive (X axis) 0.1 goes backwards
M569 P0.2 S0 ; physical drive (Y axis) 0.2 goes backwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S1 ; physical drive 0.4 goes forwards
M584 X0.1 Y0.2 Z0.3 E0.4 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X78.82 Y131.23 Z640.00 E436.70 ; set steps per mm
M566 X1000.00 Y1000.00 Z60.00 E2000.00 ; set maximum instantaneous (JERK) speed changes (mm/min)
M203 X6000.00 Y6000.00 Z600.00 E6000.00 ; set maximum speeds (mm/min)
M201 X600.00 Y600.00 Z200 E2500 ; set accelerations (mm/s^2)
;M201 X500.00 Y500.00 Z200 E2500 ; set accelerations (mm/s^2)
M906 X800 Y1100 Z1400 E650 I30 ; 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 X420 Y300 Z290 S0 ; set axis maxima
; Endstops
M574 X1 S1 P"io1.in" ; configure microswitch endstop for low end on X via pin io1.in
M574 Y1 S1 P"io2.in" ; configure microswitch endstop for low end on Y via pin io2.in
M574 Z2 S1 P"io5.in" ; configure microswitch endstop for High end on Z via pin io5.in
;M574 Z2 S2 ; configure Z-probe endstop for high end on Z
; Z-Probe
M950 S0 C"io7.out" ; create servo pin 0 for BLTouch
M558 P9 C"io7.in" H5 F2000:100 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X-4 Y75.5 Z3.1 ; set Z probe trigger value, offset and trigger height
M557 X5:400 Y76:286 S30 ; define mesh grid
; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out3" T0 ; create bed heater output on out3 and map it to sensor 0
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S160 ; set temperature limit for heater 0 to 160C
M308 S1 P"temp1" Y"pt1000" ; configure sensor 1 as PT1000 on pin temp1
M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S420 ; set temperature limit for heater 1 to 420C
M308 S2 P"temp2" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin temp2
M950 H2 C"out2" T2 ; create chamber heater output on out2 and map it to sensor 2
M307 H2 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"out4" Q3000 ; create fan 0 on pin out4 and set its frequency
M106 P0 C"Print Cooler" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"out5" Q4000 ; create fan 1 on pin out5 and set its frequency
M106 P1 C"HotEnd" S0 H1 S0.5 T100 ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"out8" Q500 ; create fan 2 on pin out8 and set its frequency
M106 P2 C"onXstepper" S0.15 H-1 ; set fan 2 name and value. Thermostatic control is turned off
M950 F3 C"out9" Q500 ; create fan 3 on pin out9 and set its frequency
M106 P3 C"Duet-board" S0.1 H-1 ; set fan 3 name and value. Thermostatic control is turned off
; Tools
M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R150 S0 ; set initial tool 0 active and standby temperatures to 0C
; Custom settings are not defined
; Miscellaneous
M501 ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
M150 X0 R255 U255 B255 P200 S107 ; set DotStar LEDs (dim white)
T0 ; select first tool
I use a SSR to provide 120vac to the main power supply. Currently the SSR is controlled by a 5v power supply. However it seems that if the SSR is driven by the Duet3 board, which can be controlled by G-code, then all it would need is a momentary switch to power up the SSR thus the Duet3.
More details need to be worked out but I believe this would be a workable solution if you don't have an ATX ps.
Thank you Phaedrux, I'll try those numbers or something close.
Here is a picture of my extruder/head. It currently has a .6mm nozzle.
@norder I'm still learning about pressure advance and have not yet implemented it. Thanks for the encouragement to do so.
This seems to be still initial tuning after conversion to Duet3D. It's a long and slow process as I'm still getting to know this technology.
I did just recently increase the extruder steps-per-mm after measuring the actual filament through put.
@brs said in Help tune out "printer seam":
I upped the Jerk setting to...
M566 X5000.00 Y5000.00 Z500.00 E120.00
and printed this...
[video here]
It's this line of blobs that I'm trying to tune out. Haven't yet increase Acceleration.
@mrehorstdmd Inverted... very clever. Though it seems the two match up quite well. But like I said, the vase was just a test case. Inverting my subject project won't work.
I'll up the accel/jerk values and print some twin cylinders.
Simplify3D...
I printed in such a way as to have a top and bottom half. This was an experiment for a much larger project I have in mind that will not fit my printer and will have to be printed in two parts.
But my question was not about the vase it was more about the print head pausing when changing Z or going from one part to the other. I know I can minimize the affect by randomizing the 'start point' but in my case 'optimizing the start points' put them all above one another as such I was able to notice the pause when changing Z or part.
Forgive the made up term "printer seam" I just don't know what to call it. Basically, if I set my slicer to "optimize start point for fastest speed" then the printer has a slight pause at that location which is over heating that spot and leaving what looks like a seam (see pic). It also seems to pause at that spot when changing layers.
I'm thinking this might be related to Acceleration or Jerk.
There is also some layer shift but that might be caused by me opening and closing the drawers of the printer stand (a tool chest)
Here is the config file...
; Configuration file for Duet 3 (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Fri Jun 10 2022 15:08:30 GMT-0700 (Pacific Daylight Time)
; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"F430" ; set printer name
; Network
M551 P"F430" ; set password
M552 P192.168.0.200 S1 ; enable network and set IP address
M553 P255.255.255.0 ; set netmask
M554 P192.168.0.1 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet
; Drives
M569 P0.1 S0 ; physical drive (X axis) 0.1 goes backwards
M569 P0.2 S0 ; physical drive (Y axis) 0.2 goes backwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S1 ; physical drive 0.4 goes forwards
M584 X0.1 Y0.2 Z0.3 E0.4 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X78.82 Y131.23 Z640.00 E436.70 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous (JERK) speed changes (mm/min)
M203 X6000.00 Y6000.00 Z600.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X800 Y1100 Z1200 E650 I30 ; 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 X420 Y300 Z290 S0 ; set axis maxima
; Endstops
M574 X1 S1 P"io1.in" ; configure microswitch endstop for low end on X via pin io1.in
M574 Y1 S1 P"io2.in" ; configure microswitch endstop for low end on Y via pin io2.in
M574 Z2 S1 P"io5.in" ; configure microswitch endstop for High end on Z via pin io5.in
;M574 Z2 S2 ; configure Z-probe endstop for high end on Z
; Z-Probe
M950 S0 C"io7.out" ; create servo pin 0 for BLTouch
M558 P9 C"io7.in" H5 F2000:100 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X-4 Y75.5 Z3.1 ; set Z probe trigger value, offset and trigger height
M557 X5:400 Y76:286 S30 ; define mesh grid
; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out3" T0 ; create bed heater output on out3 and map it to sensor 0
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S160 ; set temperature limit for heater 0 to 160C
M308 S1 P"temp1" Y"pt1000" ; configure sensor 1 as PT1000 on pin temp1
M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S420 ; set temperature limit for heater 1 to 420C
M308 S2 P"temp2" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin temp2
M950 H2 C"out2" T2 ; create chamber heater output on out2 and map it to sensor 2
M307 H2 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"out4" Q3000 ; create fan 0 on pin out4 and set its frequency
M106 P0 C"Print Cooler" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"out5" Q4000 ; create fan 1 on pin out5 and set its frequency
M106 P1 C"HotEnd" S0 H1 S0.5 T100 ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"out8" Q500 ; create fan 2 on pin out8 and set its frequency
M106 P2 C"onXstepper" S0.15 H-1 ; set fan 2 name and value. Thermostatic control is turned off
M950 F3 C"out9" Q500 ; create fan 3 on pin out9 and set its frequency
M106 P3 C"Duet-board" S0.1 H-1 ; set fan 3 name and value. Thermostatic control is turned off
; Tools
M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R150 S0 ; set initial tool 0 active and standby temperatures to 0C
; Custom settings are not defined
; Miscellaneous
M501 ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
M150 X0 R255 U255 B255 P200 S107 ; set DotStar LEDs (dim white)
T0 ; select first tool
@exerqtor
I knew that and, wasn't really serious when I posted the part about M150. Problem is, there is no loop feature (that I know of) in G code so that a light can be made to blink until the operator comes and notices. Just one of those little things that would be icing on the cake but not really needed.
@appjaws said in What happens at the end of a print job?:
Thnx, I might use some of that. Copied it to my scripts and commented it out for later use.
Now if you could give me one more line (M150) to make my DotStar lights flash that would be the cat's meow.
@jay_s_uk said in What happens at the end of a print job?:
@brs that gcode is incorrect.
G28means home all axes.
If you want to move to a specific point, it would beG1 X10 Y250
Ha. Well that was easy.
Thanks Jay!
I have this line in my slicer 'Ending Script'...
G28 X10 Y250 ; Move print head out of the way
...so that the print head will be at the back of the enclosure after the print is finished. Otherwise the gantry is in the way of print removal.
For some reason this line only works if I cancel the print job. If the print finishes normally the print head parks itself at Home (front left). Where is the code that tells the printer to do this? What does the printer run at the end of each print job?
@maestro said in CreatBot F430 Another Transformation:
I have switched to stainless-endcap, high-temperature rails
Can you give more info on your rails?
The thought of removing the 'L' beam never occurred to me since I didn't do any mechanical changes besides the print head. I'll take a look at that - thanks.
If you want any specific pictures let me know.
Build Plate was completely rebuilt. Stock build plate was a piece of boron glass (I believe) with four studs glued on. It used a 24VDC heater pad that would barely get to 45˚C. Scraped that (well, just put it in a dark corner for now).
The new build plate is a 1000W 120V Keenovo sandwich topped with a layer of 1/4" tempered plate...
The 5mm silicon foam does wonders for the heating ability. It's hard to believe this is not standard on new printers.
The 1/4" glass is overkill and quite heavy. Upon the finish of my first print on it the build plate costed all the way to the bottom - very strange. I found that I had been using M84 in the post process script of the slicer. Changing it to "M84 X Y" should solve the Z motor idle hold from turning off.
Stock print heads is what got me thinking that an update might be possible. Problem was that I was getting heat creep as the little fans were poorly implements and starved for air. I couldn't heat the chamber and keep the filament from jamming on certain filaments. Here is a picture of the stock heads.
Very nicely built but not as functional as I would have liked.
Since I ever only used one head, that is what I switched to...
So far I like the mosquito and BMG extruder. If I have trouble with heat-creep again the next step would be to convert to water cooled which should be fairly easy since mosquito make a water cooled version of what I have here. So it would just require one part plus the water.
Well that's about all I have to say about that subject.
Have a blessed Independence Day celebration
----(for my friends in the USA)
@fcwilt said in Too much current goes klunk!:
It's usually the sudden acceleration/deceleration that leads to that sound.
I had it on one printer. Changing the acceleration and "jerk" parameters got rid of it with little impact on performance.
Frederick
Frederick, per your previous post (and my response) I already spent considerable time tweaking M566 & M201. Nothing seemed to make any difference. Thanks though.
@moth4017 said in Too much current goes klunk!:
@brs the klunk on the video sound like something
is loose
Ha, no not at all - nothing is loose. But yes, kinda sounds like it. It's demonstrably related to Current and StealthChop. No doubt there is much more to it, but it's not physical, at least not the cause. It amazes me how these steppers bing 90% electric/electronic can make such a variety of sounds. Do the sounds come from that 10% mechanical? Makes no sense to me.
Configuration:
This has been where I continue to play. Not having any prior knowledge of G/M code there was a steep learning curve. But today I finally felt that everything was working well enough to share. So here is my Config.g and Homeall.g Homeall is included since that I where I setup the StealthChop stuff.
A note about the StealthChop, I found (until something gets changed) that Y axis runs better with it off. But X absolutely needs it.
; Configuration file for Duet 3 (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Fri Jun 10 2022 15:08:30 GMT-0700 (Pacific Daylight Time)
; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"F430" ; set printer name
; Network
M551 P"F430" ; set password
M552 P192.168.0.200 S1 ; enable network and set IP address
M553 P255.255.255.0 ; set netmask
M554 P192.168.0.1 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet
; Drives
M569 P0.1 S0 ; physical drive (X axis) 0.1 goes backwards
M569 P0.2 S0 ; physical drive (Y axis) 0.2 goes backwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S1 ; physical drive 0.4 goes forwards
M584 X0.1 Y0.2 Z0.3 E0.4 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X78.82 Y131.23 Z640.00 E415.00 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous (JERK) speed changes (mm/min)
M203 X6000.00 Y6000.00 Z600.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X800 Y1100 Z1200 E650 I30 ; 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 X420 Y300 Z290 S0 ; set axis maxima
; Endstops
M574 X1 S1 P"io1.in" ; configure microswitch endstop for low end on X via pin io1.in
M574 Y1 S1 P"io2.in" ; configure microswitch endstop for low end on Y via pin io2.in
M574 Z2 S1 P"io5.in" ; configure microswitch endstop for High end on Z via pin io5.in
;M574 Z2 S2 ; configure Z-probe endstop for high end on Z
; Z-Probe
M950 S0 C"io7.out" ; create servo pin 0 for BLTouch
M558 P9 C"io7.in" H5 F2000:100 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X-4 Y75.5 Z3.1 ; set Z probe trigger value, offset and trigger height
M557 X5:400 Y76:286 S30 ; define mesh grid
; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out3" T0 ; create bed heater output on out3 and map it to sensor 0
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S160 ; set temperature limit for heater 0 to 160C
M308 S1 P"temp1" Y"pt1000" ; configure sensor 1 as PT1000 on pin temp1
M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S420 ; set temperature limit for heater 1 to 420C
M308 S2 P"temp2" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin temp2
M950 H2 C"out2" T2 ; create chamber heater output on out2 and map it to sensor 2
M307 H2 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"out4" Q3000 ; create fan 0 on pin out4 and set its frequency
M106 P0 C"Print Cooler" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"out5" Q4000 ; create fan 1 on pin out5 and set its frequency
M106 P1 C"HotEnd" S0 H1 S0.5 T100 ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"out8" Q500 ; create fan 2 on pin out8 and set its frequency
M106 P2 C"onXstepper" S0.15 H-1 ; set fan 2 name and value. Thermostatic control is turned off
M950 F3 C"out9" Q500 ; create fan 3 on pin out9 and set its frequency
M106 P3 C"Duet-board" S0.1 H-1 ; set fan 3 name and value. Thermostatic control is turned off
; Tools
M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R150 S0 ; set initial tool 0 active and standby temperatures to 0C
; Custom settings are not defined
; Miscellaneous
M501 ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
M150 x0 R100 U100 B100 P100 S107 ; set DotStar LEDs (dim white)
T0 ; select first tool
; homeall.g
; called to home all axes
;
; HOME X AND Y
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-425 Y-305 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-425 Y-305 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
;stealthchop tuning AT1
M18 X Y ; disable x and y steppers
M569 P0.1 D3 V5 H5 ; enable stealthchop and set tpwmthrs and thigh for X
;M569 P0.2 D3 V5 H5 ; enable stealthchop and set tpwmthrs and thigh for Y
M915 P0.1 T5 ; set tcoolthrs for X [needed if stallguard is not used???]
;M915 P0.2 T5 ; set tcoolthrs for Y [needed if stallguard is not used???]
M17 X Y ; enable x and y steppers [will this enable full run current or idle current???]
G4 P150 ; pause for 150ms to satisfy AT1 condition
G92 X0 Y0 ; set home positions again after position loss due to M18
G90 ; absolute positioning
;stealthchop tuning AT2 (and goto probe bed-center)
G1 X209 Y67.5 F3000 ; tuning move at "typical speed" that is nearly a straight line...
; ...in order to move both steppers (CoreXY) significantly i.e. >400 full steps @ 60-300RPM
; HOME Z
G30 ; home Z by probing the bed
G91 ; relative positioning
G1 Z25 F1000 ; lift Z relative to current position
G90 ; absolute positioning