Hi,
what setting changes would you recommend for the following problems:
I have spidery silk-threads between points around the prints. Obviously the filament kept extruding further a bit while the printhead just meant to change position, but how could I get rid of that?
Pointy details are tricky. The first time it printed such a detail as the very last thing of the print it just turned into a giant molten blob of PLA. I reduced the temperature to 195º and while it’s not melting every detail down anymore I still think those details lack the precision they should have. Could lowering print speed help there now? How could I do that for just such detailed areas?
See image. This was the very first or second print, and might be a combination of the two issues above, but how can I tackle such … a mess in details?
Very fine details require a lot of cooling and minimal head contact.
One trick is to slow down the print speeds for those layers and lower the temperatures for those layers. Unfortunately you don’t get a great deal of control over this in Cura, it’s better with Slic3r but then… well, you can guess the rest!
I’d lower the temp a bit. You can do this manually with RH towards the end of the print. This way you can also uncheck the ‘cool head lift option’ which causes a bit of stringing. The manual controls do give you a bit of control to experiment with.
I dont know what your settings are but i did this, it was my really first print, i did it with this settings:
Vellmans PLA Black
190° C
FR 80%
110mm/s Retraction Speed
4mm Retraction Distance
Thanks! I like the idea of a decoy object, I shall give that a go with the next print.
Does Slic3r also allow some more control for support structure? I’ve been printing figurines and the default structures added sometimes weren’t enough or not in the places I’d like them to be. Can I manually decide where I want support and where not?
@Tuxx
Ah, I hadn’t changed any of the settings then yet… It could be much better now! I’ll print the keyring again and hope it’ll look like yours.
What might cause this squishing at the bottom layers, seen on the left print (compared to the nice flat print on the right)? As if the massive weight of the rest of the print caused the soft bottom to sink and spread out…
(I have no heated bed.)
I have started to take proper notes for each test print but I am not yet sure I can pin point certain factors to certain results. xD
Edit: Oh, the print on the right was the very first print I did with the default settings … the print on the left was done at 190°, 70% flow, high speed default setting, 100/4 Retraction Speed/Distance.
Edit 2: Also, may I ask, why would upon starting a print job, after it did an Auto Home, the print bed lower itself again while the extruder heats up? It didn’t do that to begin with so I am not sure what setting changed that behaviour…
Edit 2: Also, may I ask, why would upon starting a print job, after it did an Auto Home, the print bed lower itself again while the extruder heats up? It didn’t do that to begin with so I am not sure what setting changed that behaviour…[/quote]
I’ve that behaviour also. He also do a wrong skirt (like a wipe tower skirt, but I’m printing one head). It look to be a bug when slicing. Apparently he keep something from previous slicing when slicing multiple times without changing settings.
I first observe that strange behaviour with a slicing on extruder 1. I print the object anyway . Then I reslice same object with extruder 2 (need a second one with the filament color loaded there), then additinnaly he mismatch extruder (heating 2 and trying to print with ext1 witch is cold, so he didn’t print at all). Workaround, reslice with completelly different settings (why not default), then slice again with the target setting.
