foehnsturm
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Everything posted by foehnsturm
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Hey, I've only got two spools of 1.75 mm filament right now: black and lime green Yoda strikes back. Footage will follow.
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Had some issues with the connected GLCD display, presumably wire cross talking. Confused screens and several mid print aborts. The only solution so far is to disconnect the display. Running a torture test now to see if this helps. Yoda needs a buddy.
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uploaded a pancakefeeder.stp.zip. Copying the text file content and saving it to a .stp file should work as well. But I'm no expert in transferring CAD files ...
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Please have a look at: foehnsturm.com/3dp/pancakefeeder.stp Don't want to put it on Youmagine right now because I haven't any time left for some documentation.
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Mit Nicolinux wirst Du das schon hinbekommen. Der hat schon dickere Bretter gebohrt ;-) Was das Preisniveau und den Dual-Extrusion Kommunikationsgau angeht kann ich Deine Meinung ja gut nachvollziehen.
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Einen Versuch mach ich noch. Movement speed = max. Geschwindigkeit ohne zu drucken, deshalb "Leerfahrten". Die sollte hoch sein, ein langsamer Extruder macht da gar nix. Du musst aber schnell mit der heissen Düse vom Objekt weg. Minimum travel for retraction : 12 mm = retraction AUSGESCHALTET bei kleinen Teilen. Erst wenn die Lücke größer als 12 mm fügt der slicer eine retraction ein. Egal bei welchem Drucker, ist die Temperatur deutlich zu hoch wird das Filament extrem dünnflüssig und die Retraction entsprechend mies.
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As the corexy is quite a big project I still have to do a first print with flexible filament with the new feeder. On the UMO, both, the FlexDrive and the worm gear direct drive, performed very well with flexible filament. In both cases the filament path can be as short as possible, Flex will offer more power (which won't be needed for flexible filaments), direct drive will give slightly better extrusion control and retractions I think.
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Well, after some reading about E3D hotends I had the "feeling" that the 1.75 mm types generally perform better / show less issues. I've got a 1.75 mm Lite6. Heat transfer from the surface to the core of the filament takes some time. My impression is, that the heat transfer advantage of a small diameter overcompensates the need for faster feeding.
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Servus André, ohne jetzt zunächst auf die anderen Punkte einzugehen: die 120 mm/s movement speed solltest Du etwa verdoppeln. Egal wie langsam der Extruder sein mag, Leerfahrten sollten möglichst schnell geschehen. "Minimum travel for retraction : 12 mm" wird bei kleinen Teilen diese vollständig verhindern, üblich sind hier Werte von ca. 1 mm. Und dann stellt sich natürlich noch die Frage nach der Drucktemperatur. Verwendest Du simplify3D weil's mit Cura noch schlechter wird?
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Well, everything I printed the last 18 months was with the crossflow fan. On the old forum there were a lot of pictures ... Uploaded a few again.
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Well then I need to take a look at mine extruder it is the loudest part of al?! But do you have some stp file of the extruder for me? So I can edit them for my E3D mount. Working on rev3 at the moment which might fit better for your mount (less height). It moves the heavy parts (E3D, stepper) closer to the mounting point.
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A: Yes B: I used red->red, yellow->blue, orange->black, blue->green to mimic the UMO pattern.
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True, I like that very much. Almost silent, just a gentle "beep" on retractions. It's the same with the pancake stepper and the 13:60 gear.
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Well, same weight, almost three times the torque and twice as hot (just kidding, but it can get really hot). Besides this it's comparing apples with oranges: 3 mm vs 1.75 mm, 1:40 vs 13:60 gear, Merlin hotend vs. E3D Lite (which E3d says is not that fast). I still have to conduct some extrusion speed tests. And yes I moved to 5mm, which makes things a little easier.
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flap, flap, flap ... I had some concerns as it's not really working symmetrically, but it looks ok.
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Handmade so far. But I think about having them manufactured if there is enough interest.
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ended Community Contest, part 1 | The Ultibot
foehnsturm replied to SandervG's topic in Coffee corner
I knew that ;-) Great. -
currently assembling the second extruder, meanwhile it passed the first endurance test. not bad for a small 70 gr pancake stepper ...
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BTW: bioFila just announced plaTec with a softening temperature of 120°C ! I should receive a sample the next days.
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no, there is an older thread about PLA HT https://ultimaker.com/en/community/view/9754-pla-ht Besides its high temperature resistance and tensile strength its quite soft, the surface feels somewhat waxy. I grinded it in the feeder most times until I switched to a 0.8 mm nozzle for less backpressure. And you !must not! use a fan for the first layer otherwise it doesn't stick at all. Printing temp was 210°C, layer 0.15 mm
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good point. So with a motor a typical fan grinder but made of silicone would be nice.
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Time will tell, it's only blocked to some 40%. I'm more afraid the bottom of the stepper is too hot for the regular PLA the dock is printed with. Now it's time to start thinking about my nozzle cleaning device. I'd like to use a small geared motor and some brushes as a first attempt.
