Identical artifacts/issues on two parts on the same print job
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@Turbo For fun heres my other printers config file running rrf3 if you want to rifle through it
; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu Apr 16 2020 15:52:25 GMT-0700 (Pacific Daylight Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"CCPrinting" ; set printer name ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S1 ; physical drive 0 goes forwards M569 P1 S1 ; physical drive 1 goes forwards M569 P2 S0 ; physical drive 2 goes backwards 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 X160.00 Y160.00 Z400.00 E390.00 ; set steps per mm (Currently 2x for 0.9 Steppers on X & Y) M566 X700.00 Y700.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X12000.00 Y12000.00 Z1200.00 E3000.00 ; set maximum speeds (mm/min) M201 X800.00 Y800.00 Z100.00 E5000.00 ; set accelerations (mm/s^2) M906 X700 Y700 Z700 E855 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X-3.5 Y0 Z0 S1 ; set axis minima M208 X200 Y200 Z140 S0 ; set axis maxima ; Endstops M574 X1 S3 ; configure sensorless endstop for low end on X M574 Y1 S3 ; configure sensorless endstop for low end on Y M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M558 P9 C"^zprobe.in" H5 F750 T7200 ; BLTouch connected to Z probe IN pin M950 S0 C"exp.heater3" ; create servo/gpio 0 on heater 3 pin on expansion connector G31 P500 X55 Y10.58 Z1.2 ; set Z probe trigger value, offset and trigger height Increase for Nozzle down, Decrease for Nozzle up M557 X55:197 Y20:190 S71:85 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B3950 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C 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 M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M143 H1 S280 ; set temperature limit for heater 1 to 280C M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit ; Fans ;M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency ;M106 P0 C"SHORTED DO NOT USE" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off ;M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency ;M106 P1 C"SHORTED DO NOT USE" S0 H-1 ; set fan 1 name and value. Thermostatic control is turned off M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency M106 P2 C"Part Cooling Fan" S0 H-1 ; set fan 2 name and value. Thermostatic control is turned off ; Tools M563 P0 S"Hemera" D0 H1 F2 ; 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 M501 ; Miscellaneous T0 ; select first tool -
@Turbo said in Identical artifacts/issues on two parts on the same print job:
Z1000
is your z motor a different motor?
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@Veti its a 5:1 geared stepper motor. 17hs15-1684s-pg5
https://www.omc-stepperonline.com/nema-17-stepper-motor-bipolar-l38mm-w-gear-raio-51-planetary-gearbox-17hs15-1684s-pg5.html -
@Turbo said in Identical artifacts/issues on two parts on the same print job:
17hs15-1684s-pg5
set that to 1200
you should got for around 75% of the stated current.
how heavy is your bed, that you need 5:1 stepper drivers?
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@Turbo said in Identical artifacts/issues on two parts on the same print job:
Z423
I dont understand this value. that just feels wrong.
what kind of leadscrew do you have?
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@Veti it's not too heavy. Approx 300x 200y, with some 2040 extrusions. Main reason is the z axis is belted rather than leadscrews
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assuming you have a gt2 setup with 20 teeth
motor is 5.18:1
that would be 414.4 -
@Veti im not sure the exact gearing, but it does drive-->middle pulley, out to two more pulleys on either side. let mee if i can count the teeth
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it says so on the spec page you linked
Gear Ratio: 5.18: 1
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@Veti not of the motor, im not sure it uses all 20t pulleys, there might be a combo of different counts
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@Turbo
only the one on the motor counts. -
@Veti oh okay. let me try that value and see what comes of it
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@Veti printed a 20mm cube at .35layer height. Slicer says it will be a final product of 20.15. actual is 20mm on the dot.
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I think the problem is cold extrusion. Your thermistor settings were really off and you're printing fast and with a thicker layer height really pushing the flow rate. I think that's why the top layer looks more like strings than proper fused extrusion.
Now that you have the proper thermistor settings in place I suggest you go through this guide and recalibrate your extruder and find your maximum flow rate, and from that you take your chosen layer height and width and determine your appropriate print speed.
https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+Maestro+Guide+Part+4:+Calibration/40
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@Phaedrux Just finished pid tuning and printing a square to verify settings. Will work on e steps next, although how much could it change due to a bad pid value?
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Well it's more than just esteps, it's finding the max volumetric flow of your hotend and extruder and then adjusting your print settings to stay within that limitation.
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@Phaedrux
so far e steps look likem92 e407.42
max vol flow rate calculated to be 12.04107575mm^3 / s^2
Max sugg speed for .3 layer height and .6 line width with a .5mm nozzle is approx 66mm/s at 210c.
still going but thought id post an update
printing the box testing for flow. is it okay to use .3mm layer height du to the larger nozzle and thats what i normally print with -
That all sounds right to me.
Compare that to your speed of 80mm/s at an unknown real temp.
Sure you can use whatever layer height you would typically be printing with.
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@Phaedrux Im starting to see where this might be going. I guess I've been calibrating wrong this whole time. Although another thing im sure is contributing to the messy prints is how shaky the printer is. The thing is sturdy, and uses 2040 extrusion for the frame, so idk. I put a towel under it to help dampen it but again, I dont know a good way to go about this since i dont wannt bolt it to the wall. Shakes the whole table, even with these settings, which I think are pretty low. Unless they aren't?
M566 X1000 Y1000 Z240 E600:600 ; Set maximum instantaneous speed changes (mm/min) (OG E600:600) M203 X18000 Y18000 Z2400 E3600:3600 ; Set maximum speeds (mm/min) M201 X1250 Y1250 Z250 E2000:2000 ; Set accelerations (mm/s^2) M906 X1500 Y1500 Z1200 E850:850 I50 ; Set motor currents (mA) and motor idle factor in percent -
@Phaedrux things begin closing up at 85%. seems too low considering you mentioning values within +/-5 of 100%, but everything else I calibrated according to the guide.
Its also under the expected width of 1mm by about .1 to .15mm, despite the gaps being closed up. does this indicate something wrong in calibration or is the solution to bump up the extrusion rate?
Final edit: using 98% flow gives me the expected 1mm thickness. despite 85% being where the gaps close
