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Hello netizens of Lemmy, while printing this single wall wing segment i ran into a problem with significant bulging around the middle. This causes the segments to not fit onto the frame or each other. If anyone has ideas on how to fix this, please share. At this point i'm pretty desperate and willing to try just about anything.
Thanks for helping. It's PLA at 210C, 60C bed temp, with an enclosure. The whole thing finishes in just 1.5h and is 25cm high so new layers might be getting placed before the ones below had time to cool down. I'll try it slowed down and update the post when it's done.
You mean with a closed enclosure? Maybe try printing with it open then, PLA generally want as much cooling as you can muster. I don't have an enclosure myself, but I've heard that some people who do have to print with their doors open when using PLA.
Also does it print straight, and then later start bulging while its printing other layers on top? Or did it print the bulge that way?
update: I zoomed in closer on your other photo, and that choppy edge + horizontal lines are also indications that something is wrong. My first guess(es) would be either an extrusion issues (mis-calibrated extruder/slider, trying to print too fast, poorly machined nozzle...) something mechanical (frame isn't properly assembled, loose roller wheel, hotend isn't fully screwed to the carriage...).
Btw. I saw you wrote that you have a 0.2mm nozzle. Just to be sure, you did put that into your slicer, right? The default settings are probably 0.4mm nozzle. Also what line width and layer height are you using in the slicer settings?