One issue after swapping from smoothieboard
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The silence is incredible, but I am running into a strange issue that I am a bit perplexed with. I ran PID tuning for both hotend and bed, but still getting a strange defect where the first 25 layers or so are printing slower? or hotter? than the rest? They seem to have more shine and shrink slightly more indicating more heat. I have tried creating a brand new profile using Cura and Prusaslicer and to my surprise got the same result.
The hardware is basically a Prusa MK2.5 with all extruded aluminum, and Duet 3 Mini 5x
Duet Web Control 3.4.5
RRF 3.4.0
Duet Wifi Server 1.26
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@mdbergholm
If you lower your bed temperature, does the transition point get lower? -
@OwenD Sorry I meant to also post that I lowered my bed temps to 40c (from 70c) because any lower it wouldnt stick to the bed at all. When doing this i seemed to get quite similar results
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@OwenD I count about 25 layers on both 70c bed and 40c bed. That was my first thought was the bed was too hot. I updated my initial post with details on printer and software. Seems like a simple issue TBH just strange.
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Here is my config.g
; ##### General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Rob" ; set printer name ; ##### Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; ##### 12864 Menu M918 P2 E-4 ; ##### Drives M569 P1 S0 D3 V10 ; X drive @1 M569 P2 S1 D3 V10 ; Y drive @2 M569 P0 S1 D3 V100 ; Z left drive @0 M569 P4 S0 D3 V100 ; Z right drive @4 M569 P3 S0 D3 V0 ; E drive @3 - inversed M584 X1 Y2 Z0:4 E3 ; set drive mapping M671 X-37:287 Y0:0 S10 ; define dual driven z-axis M92 X160.80 Y159.60 Z388.16 E140.00 ; set steps per mm M350 X256 Y256 Z256 E256 I1 ; configure microstepping with interpolation M566 X600.00 Y600.00 Z48.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X8000.00 Y8000.00 Z720.00 E7200.00 ; set maximum speeds (mm/min) M201 X1250.00 Y1250.00 Z1250.00 E2000.00 ; set accelerations (mm/s^2) M906 X1000 Y1000 Z1000 E1200 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; ##### Axis Limits M208 X0 Y-4 Z0 S1 ; set axis minima M208 X255 Y212.5 Z215 S0 ; set axis maxima ; ##### Endstops M574 X1 S1 P"io0.in" ; X endstop M574 Y1 S1 P"io1.in" ; Y endstop ; ##### Z-Probe Settings for PINDA 2 M558 P5 C"io2.in" I1 H1 F1000 T6000 A3 ; Prusa PindaV2 Endstop M574 Z1 S2 ; Set Z axis endstop, controlled by probe M557 X0:220 Y0:205 P5 ; Define mesh grid for probing M376 H5 ; Fade height 5mm ; ##### Heaters ; Bed Heater M308 S0 P"temp0" Y"thermistor" B4725 C7.060000e-8 ; configure sensor 0 as thermistor on pin temp1 M950 H0 C"out0" Q25 T0 ; create bed heater output on out0 and map it to sensor 0, PWM frequency: 25Hz M307 H0 R0.262 C338.0 D10.52 S1.00 V11.8 B0 ; Bed tuning values, enable PID M140 H0 ; Bed uses Heater 0 M143 H0 S120 ; Set temperature limit for heater 0 to 120C Bed ; Hotend heater M308 S1 P"temp2" Y"thermistor" T100000 B4092 ; configure sensor 1 as thermistor on pin temp1 M950 H1 C"out2" 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 S275 ; set temperature limit for heater 1 to 275C ; ##### Fans ; Part cooling fan M950 F0 C"out3" Q100 ; create fan 0 on pin out3 and set its frequency M106 P0 S0 H-1 ; set fan 0 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 R0 S0 ; set initial tool 0 active and standby temperatures to 0C M572 D0 S0.06 ; Pressure Advance ; ##### Startup M18 XYE ; release / unlock X, Y, and E axis M501 ; use config-override (for Thermistor Parameters and other settings) G90 ; send absolute coordinates... M83 ; ... but relative extruder moves -
@mdbergholm
My next thought would be reflected air off bed from part fan.
What happens if you lower the fan speed?
Presumably this didn't happen with same hardware on smoothieware? -
@OwenD Yes - no issue with same hardware/print profiles using smoothieboard. I am currently printing a vase mode print to see if i notice a difference there. After that I will try the other part again using 0 fan. With the prints you saw I am using only 15% fan speed.
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@OwenD So on the left is 15% fan, on the right is 0% fan. The appear the same to me besides the lack of cooling causing some curling on the right side corners...and my bed offset....
and as for vase mode... Its hard to say I could have picked a better model to do this... but i think i see it there too.
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@mdbergholm and for anyone looking at this here is just a point of reference. My machine is basically the "Prusa Bear" upgrade frame with moons motors, and duet 3 electronics. Nothing out of the ordinary here. No crazy cooling or heating. All 12v.
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@mdbergholm Are you using mesh bed levelling? Do you have a fade height set?
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Do you have adaptive layer heights turned on in your slicer? If there is a transition 25 layers up in the design, the printing characteristics may change there, due to speed and layer height changes.
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I'd be curious to see a sample GCODE file - I'd be looking for settings dealing with different print speeds for the first 'x' layers, as well as the layer in which the part cooling fan (If used) is fully on (or a permutation - fan speed could slowly lamp up, with full speed being reached at that texture transition, or it might not turn on until that layer).
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@mdbergholm said in One issue after swapping from smoothieboard:
Duet Web Control 3.4.5
RRF 3.4.0
Duet Wifi Server 1.26Probably won't help your issue, but update your firmware. You're a bit all over the place. Upload this zip file to the system tab.
https://github.com/Duet3D/RepRapFirmware/releases/download/3.4.5/Duet2and3Firmware-3.4.5.zip
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@gloomyandy I am using mesh leveling with the inductive probe. I have not however set a fade height. Didn't know that was a thing. Will read up on it.
I do not have adaptive layers turned on. I am printing at 200um the whole time. The issue will happen on any part not just that one I've been printing could be a plain block. I have also printed this part on other machines without the issue showing up.
I can post up a sample of the gcode if it would be helpful. And I can def update all my firmware this is just how it arrived. I probably should get it all updated anyways.
;FLAVOR:RepRap ;TIME:10119 ;Filament used: 7.59597m ;Layer height: 0.2 ;MINX:97.941 ;MINY:83.064 ;MINZ:0.24 ;MAXX:152.06 ;MAXY:132.639 ;MAXZ:49.64 ;Exported with Cura-DuetRRF v1.2.9 plugin by Thomas Kriechbaumer ;Generated with Cura_SteamEngine 5.2.2 T0 M190 S70 M104 S250 M109 S250 M82 ;absolute extrusion mode G28 ; home all G29 S1 ; load mesh offset map G92 Z0.3 ; z-offset G1 X1 Y1 Z0.45 F10000 ; move to prime position G92 E0 ; zero extruder G1 X125 Y1 E20 F1000 ; prime nozzle M83 ;relative extrusion mode G1 F2400 E-0.55 ;LAYER_COUNT:249 ;LAYER:0 M107 G1 F720 Z0.44 G0 F9600 X99.382 Y89.896 Z0.44 ;TYPE:SKIRT G1 F720 Z0.24 G1 F2400 E0.55416 G1 F900 X99.857 Y89.436 E0.02633 G1 X100.383 Y89.036 E0.02631 G1 X100.955 Y88.703 E0.02635 G1 X101.562 Y88.441 E0.02632 G1 X102.196 Y88.255 E0.0263 G1 X102.848 Y88.146 E0.02632 G1 X103.74 Y88.107 E0.03555 G1 X143.536 Y88.109 E1.58437 G1 X144.24 Y88.119 E0.02803 G1 X145.157 Y88.19 E0.03662 G1 X146.221 Y88.431 E0.04343 G1 X146.763 Y88.603 E0.02264 G1 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E-0.55 G1 F720 Z0.44 ;MESH:bucket_sign.stl G0 F9600 X120.491 Y99.045 Z0.44 ;TYPE:WALL-INNER G1 F720 Z0.24 G1 F2400 E0.55416 G1 F900 X120.317 Y98.844 E0.01058 G1 X120.208 Y98.635 E0.00938 G1 X120.15 Y98.407 E0.00937 G1 X120.137 Y97.68 E0.02895 G1 X120.263 Y97.341 E0.0144 G1 X120.466 Y97.075 E0.01332 G1 X120.786 Y96.866 E0.01522 G1 X121.059 Y96.786 E0.01133 G1 X145.54 Y96.785 E0.97465 G1 X145.54 Y96.149 E0.02532 G1 X145.4 Y95.543 E0.02476 G1 X145.192 Y95.21 E0.01563 G1 X144.986 Y94.992 E0.01194 G1 X144.666 Y94.766 E0.0156 G1 X144.088 Y94.629 E0.02365 G1 X104.461 Y94.628 E1.57765 G1 X104.461 Y106.759 E0.48296 G1 X137.872 Y107.845 E1.33087 G1 X138.487 Y107.979 E0.02506 G1 X139.026 Y108.256 E0.02413 G1 X139.439 Y108.648 E0.02267 G1 X139.728 Y109.062 E0.0201 G1 X139.848 Y109.338 E0.01198 G1 X140.02 Y109.983 E0.02658 G1 X140.02 Y116.25 E0.2495 G1 X139.884 Y116.965 E0.02898 G1 X139.599 Y117.493 E0.02389 G1 X139.189 Y117.96 E0.02474 G1 X138.619 Y118.334 E0.02714 G1 X137.889 Y118.509 E0.02989 G1 X131.796 Y118.509 E0.24258 G1 X131.104 Y118.379 E0.02803 G1 X130.562 Y118.018 E0.02593 G1 X130.402 Y117.841 E0.0095 G1 X130.149 Y117.441 E0.01884 G1 X104.46 Y116.609 E1.02328 G1 X104.46 Y126.12 E0.37866 G1 X144.123 Y126.118 E1.57908 G1 X144.679 Y125.976 E0.02285 G1 X144.988 Y125.761 E0.01499 G1 X145.247 Y125.492 E0.01487 G1 X145.423 Y125.149 E0.01535 G1 X145.502 Y124.87 E0.01154 G1 X145.54 Y124.505 E0.01461 G1 X145.54 Y103.969 E0.81759 G1 X145.54 Y99.311 E0.18545 G1 X121.155 Y99.31 E0.97082 G1 X120.735 Y99.207 E0.01722 G1 X120.491 Y99.045 E0.01166 G0 F9600 X120.839 Y98.784 G1 F900 X120.629 Y98.548 E0.01258 G1 X120.566 Y98.348 E0.00835 G1 X120.559 Y97.74 E0.02421 G1 X120.634 Y97.539 E0.00854 G1 X120.755 Y97.379 E0.00799 G1 X120.947 Y97.254 E0.00912 G1 X121.112 Y97.206 E0.00684 G1 X145.96 Y97.205 E0.98926 G1 X145.96 Y95.995 E0.04817 G1 X145.788 Y95.372 E0.02573 G1 X145.526 Y94.952 E0.01971 G1 X145.262 Y94.672 E0.01532 G1 X144.852 Y94.384 E0.01995 G1 X144.411 Y94.25 E0.01835 G1 X144.118 Y94.209 E0.01178 G1 X104.041 Y94.208 E1.59556 G1 X104.041 Y107.166 E0.51589 G1 X137.858 Y108.265 E1.34705 G1 X138.337 Y108.372 E0.01954 G1 X138.81 Y108.626 E0.02137 G1 X139.143 Y108.946 E0.01839 G1 X139.415 Y109.349 E0.01936 G1 X139.6 Y110.035 E0.02829 G1 X139.6 Y116.209 E0.2458 G1 X139.48 Y116.837 E0.02545 G1 X139.235 Y117.285 E0.02033 G1 X138.922 Y117.635 E0.01869 G1 X138.445 Y117.935 E0.02243 G1 X137.866 Y118.085 E0.02381 G1 X131.796 Y118.089 E0.24166 G1 X131.331 Y118.008 E0.01879 G1 X130.84 Y117.703 E0.02301 G1 X130.604 Y117.401 E0.01526 G1 X130.449 Y117.093 E0.01373 G1 X130.346 Y117.026 E0.00489 G1 X104.04 Y116.175 E1.04785 G1 X104.04 Y126.54 E0.41266 G1 X144.155 Y126.538 E1.59707 G1 X144.864 Y126.359 E0.02911 G1 X145.262 Y126.083 E0.01928 G1 X145.592 Y125.738 E0.01901 G1 X145.816 Y125.304 E0.01944 G1 X145.917 Y124.948 E0.01473 G1 X145.96 Y124.526 E0.01689 G1 X145.96 Y103.969 E0.81842 G1 X145.96 Y98.891 E0.20217 G1 X121.169 Y98.89 E0.98699 G1 X120.839 Y98.784 E0.0138 G0 F9600 X121.045 Y97.683 ;TYPE:WALL-OUTER G1 F900 X121.153 Y97.629 E0.00481 G1 X146.38 Y97.625 E1.00435 G1 X146.38 Y96.09 E0.06111 G1 X146.335 Y95.775 E0.01267 G1 X146.177 Y95.202 E0.02366 G1 X145.86 Y94.694 E0.02384 G1 X145.538 Y94.353 E0.01867 G1 X145.039 Y94.002 E0.02429 G1 X144.502 Y93.838 E0.02235 G1 X144.147 Y93.789 E0.01427 G1 X103.621 Y93.788 E1.61344 G1 X103.621 Y107.572 E0.54877 G1 X137.887 Y108.69 E1.36494 G1 X138.162 Y108.756 E0.01126 G1 X138.537 Y108.949 E0.01679 G1 X138.847 Y109.244 E0.01704 G1 X139.036 Y109.557 E0.01456 G1 X139.18 Y110.092 E0.02206 G1 X139.177 Y116.187 E0.24266 G1 X139.083 Y116.681 E0.02002 G1 X138.87 Y117.077 E0.0179 G1 X138.656 Y117.311 E0.01262I had to keep cutting this shorter to get it to fit within a post... hopefully its enough to be useful. Note this is gcode with zero fan that still showed the issue. But even when running a fan I had it set to turn on at layer 2 to 15% and I watched it physically start on layer 2 as expected.
I am about to be travelling for two weeks so I appreciate all your suggestions and I will work on them when I return.
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Just as an update in case anyone else comes across a similar issue - I haven't gotten it totally fixed but it seems to be related to my thermistor settings for my hotend. I was using a config that I found from CNC Kitchen (he swapped a Prusa to Duet) and I am using the same heater/thermistor so I assumed it would work fine. Once I found the datasheet for the thermistor and entered the values from there it seems to be a lot better. I am going through tweaking and PID tuning now but I am relatively confident that with some tuning I can make this defect disappear. Something to look for if you run into the same problem.
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@mdbergholm and just to correct myself - the issue was NOT temperature related. My layer lines are super clean now that I have my hotend dialed in, but that was not what was causing my defect. I had M376 H5 set in the probe section of my config. I copied my config from CNC kitchen since I was using all the same hardware I was trying to make it easier for myself. In the end I went through line by line and culled anything I didn't deem necessary and verified on the duet wiki any line I didn't understand. Setting M376 H0 keeps mesh compensation on for the whole print and no more issue right at 5mm height...
Again...just in case anyone else runs into it. Check fade height. Thanks @gloomyandy for suggesting it.
