Hey, just want to throw this out there to see what you guys think. So I’ve been printing for about 2 years now, I’ve printed small stuff, large stuff, simple stuff, complicated stuff, probably over a few hundred hours of printing so far so I’ve seen many issues come and go, but this is a new one for me. I have a medium sized tall part I’m trying to print and for some reason, one of the thin walled sections keep overextruding and roughing up, most of the time if a section roughs up like this I give it a chance to smooth out over the layers but this is just too extreme, I’ve watched the printer and it’s like it lays down too much plastic in that area (refer to picture). My specs are as follows:
Taz4, printing on PEI, have printed many parts without issues with the standard gcode values output by slic3r just prior to this part so not hardware issue. PLUS the rest of the part prints perfectly, it’s just that section which is the weirdest part.
Nozzle .4mm, LH 1.5mm, print speed 100mms, original Extrusion widths that slic3r generated seemed really large, .68 up to .87mm. Extrusion flow rate is dialed in, 40mm extruded is 40mm of filament.
Material is red ABS, I use a Hotbox enclosure.
You’ll notice in the picture I’ve tried a few times with roughly the same results, the one in behind was cut a little smaller just to test the area so it wouldn’t take too much time to print, apparently it came out ok???wtf.
I actually did end up getting the part to print ok but I’m still trying to figure out why this happened to begin with. My corrections were as follows:
I originally had the part laying across X, I changed the orientation to print along Y, I dropped the hotend temp to 230 from 235 but not sure if that was the issue as I printed MANY parts at 235 without issues and in all sorts of orentation. I also changed the extrusion widths down to .5 mm(20% larger than nozzle) in the gcode output file.
I basically know what I’m doing with 3Dprinting, but this one I can’t quite figure out…any thoughts?