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Boron Nitride thermal paste seems ideal for this application. Remains stable well over 500°C. I have a siringe of the stuff, but I didn't use it...
Yes, I guess it would be theoretically possible to see these fine impressions return in the extrudate as well. Though I'd expect that effect to...
@Geoffray Doignon I've been battling these artifacts as well. Definitely extruder related. Like you, I tried about everything, including but not...
Uwe, you've probably only changed the extruder and wiring, but just to rule out artifacts from an expanding and contracting heatbed, have you...
Okay, that's clear then. I've seen misaligned gears because the two bolts that secure the heatsink to the stepper motor weren't fastened...
@Thorinair, just curious, do you have a multimeter to measure the resistance of both coils of the Hemera stepper motor? I'm seeing a 0.1 Ohm...
You've looked at the print volume as a possible cause of the repeating patterns. But in your tower, the higher it goes, the lower the layer time...
This is the unload macro that I'm still working on. Note that I use a much lower temperature (at 200C) than my regular printing temperature of...
I've just tried your macro, and I'm getting a fairly stringy tip with PETG. For comparison, I've included a picture showing the results of my own...
I'm took some cues from the skinnydip approach to shape the tip before unloading PETG and I unload the filament at a lower temperature than the...
The Hemera stepper motor unit seems to be designed for future mirrored use. I assume for that configuration, the factory will rotate the aluminum...
The 1 meter E3D cables are way too short for a CR-20 style printer as well. I re-used the Creality heater cartridge with its 1.5 meter cable...
Thanks for sharing! Your pictures show the issues well, but I'm not confident that I'm seeing salmon skin or inconsistent extrusion patterns on...
I use a Duet with RepRapFirmware, but a search for Marlin options gave me M913 to set the hybrid threshold speed, M569 to set the TMC stepping...
The 'downside' of a printer with a super rigid motion system and an extruder with such a short filament path, is that it's unforgiving. Any...