print quality
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@droftarts I agree, these are my experiments, because I’m always searching. However, how can I explain that with PT100 I do not improve the quality at all?
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@denis I guess you're using a Duet Wifi. What version, and what firmware version? Probably best to concentrate on thermistor settings, as there's clearly a difference between Marlin and RRF, as that's where the inconsistency is. Would be good to know what thermistor you have.
Ian
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@droftarts not to be unfounded, I changed the steps to 418 and M305 P1 T100000 B4267 C0 R4700 according to the data for the thermistor 104-NT4R025H42G. Re-calibrated the PID and overloaded the board .Launched printing and expect results
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@droftarts Yes you are right. Duet Wifi and 2.04RC1 (yesterday there was still 2.03, but with the same result)
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@denis have you set the slicer to relative extrusion and reprap firmware?
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@bartolomeus currently using Cura 4.2.1, reprap g-code variant and relative extrusion
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@droftarts here is the result with the new settings. nothing of changed
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@denis said in print quality:
I do not use the original e3d
are you sure that you have a semitec thermistors?
nearly all clones dont use semitec thermistors. -
Damn, this is a tough one!
I had similar uneven extrusion lately, and it was because my extrusion temps were way higher than my other printer given the same set point. I dialed my temp for pla from 205 down to 190 and my prints became crisper.
I know you have tried the thermistor settings and all sorts of things, but try printing as low temp as possible while not grinding the filament.
That’s the only thing I can think of at the moment.
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@veti I don’t know if it’s possible to publish product links, but moderators will forgive me (probably) https://s.click.aliexpress.com/e/bVR3ictU
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Does anyone think his printer prints perfectly? I can give this model. But only print is interested in the Cura. This is related to other models and how it builds support. S3d sometimes forgets to put them correctly, and other slicers are unstable for me
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Just a guess into the blue: what does the file /sys/config-override.g on the Duet SD card contain?
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@denis I wouldn't say my printer prints perfectly, but it's similar to yours (it's a big CoreXY) and I have some nice white PLA and use the latest Cura as my slicer. My printer is controlled by a Duet 2 WiFi running version 2.03 firmware.
I use a genuine E3D V6 with a genuine Bondtech BMG extruder. (I won't buy cloned stuff as I believe my money is better spent rewarding people who innovate instead of those who produce poor quality copies.)
By all means PM me one of your troublesome models and I'll set it printing and see what happens!
I also find your problems puzzling and it would be very interesting to see why you can't get the Duet to print properly.
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@denis Those thermistors used to be 3950 Hisense thermistors (on the same link) and they changed them a couple months ago to the semitec.
I would look at your purchase history and look at the archived page info. I had the same issue (was running a 3950 at the semitec value) and my temperature was WAY high ( I think 30-40 deg)
Try setting to 3950 and see if you can still extrude PLA at typical temps.
My 2cents
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@grizewald 0 filling, 3 layers wall https://yadi.sk/d/gE_Wl-tWN37QHA
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@timothyz I just printed this in s3d. All walls are good, but either at the beginning of the layer, or at the end there are strange artifacts. (Well, yes, I also replaced the screws with sfu1204, because I finally managed to replace the balls)) Therefore, the walls look good
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@themelle there is nothing unnecessary) Heater and Z-probe parameters
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@grizewald One of the reasons - extrusion. I'm used to linear advance in marlin. It evens out the flow, removes acne and swelling. The magic thing and is configured with one parameter. Plus there are tests that are generated on the site and help in setting up. For the duet, I found a couple of formulas on the forum, the formulas already contain two parameters, there are no ready-made tests. I tried to configure, but did not see any result.
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@denis said in print quality:
@grizewald One of the reasons - extrusion. I'm used to linear advance in marlin. It evens out the flow, removes acne and swelling. The magic thing and is configured with one parameter. Plus there are tests that are generated on the site and help in setting up. For the duet, I found a couple of formulas on the forum, the formulas already contain two parameters, there are no ready-made tests. I tried to configure, but did not see any result.
If you mean "pressure advance", there's a great thread here on how to tune it for the Duet. See: Pressure Advance Calibration
Anyway, I'll throw the model you linked at my printer in a while.
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@grizewald Oh yes, I saw this topic. At one time I tried to use this script, but the thickenings did not become thinner. Probably should try again. (about two parameters - I mixed up with the M592)