appletart76 0 Posted February 11 in 2nd extruder activating during print I have an UM3 and I don't use the 2nd extruder often, but I just noticed that during my print (of a single color print) my UM3 acted like it was changing materials (when it goes in the corner and starts to extrude) then did a lap around the skirt, then changed back to extruder 1 and kept on printing. Anyone know what that's about? Is that normal and have I just never noticed it before? Share this post Link to post Share on other sites
tinkergnome 586 Posted February 11 in 2nd extruder activating during print Which slicer do you use? Cura? Do you have - by any chance - the second extruder selected as "Build Plate Adhesion Extruder"? Share this post Link to post Share on other sites
appletart76 0 Posted February 11 in 2nd extruder activating during print I am using Cura 3.1 and Extruder 1 is set for the build plate adhesion. Hence why I'm confused. It did it like after about 30 min into the print. Just very weird. I think it did it yesterday too because I was finding these burnt pieces on my plate like that had fallen off because when Extruder 2 was going the PVA filament was just curling and sticking to the nozzle. Share this post Link to post Share on other sites
appletart76 0 Posted February 11 in 2nd extruder activating during print (edited) I checked the prime tower and that wasn't on either. Edited February 11 by appletart76 Share this post Link to post Share on other sites
kmanstudios 496 Posted February 12 in 2nd extruder activating during print Can you post a dummy project file with just a cube or something like that so we can look at it? Share this post Link to post Share on other sites
appletart76 0 Posted February 12 in 2nd extruder activating during print Here's a file I know it did it on. It seems to happen right after the first layer goes down from Extruder 1 completes, then it switches to 2 for some reason, does a pass around the skirt then goes back to 1 and keeps on printing. Thank you for taking a look at this! Much appreciated! ghost_white3.gcode Share this post Link to post Share on other sites
kmanstudios 496 Posted February 12 in 2nd extruder activating during print i am not good at the g-code yet. Others are though. But the project file would contain the models and settings. That is what I wanted to see. Hopefully someone will be able to go through the gcode and give you an idea. Share this post Link to post Share on other sites
tinkergnome 586 Posted February 12 in 2nd extruder activating during print 6 hours ago, appletart76 said: Here's a file I know it did it on. It seems to happen right after the first layer goes down from Extruder 1 completes, then it switches to 2 for some reason, does a pass around the skirt then goes back to 1 and keeps on printing. It's tries to print a skirt with the second extruder. I see that support is enabled (but apparently not needed?)), which one is the "Support Extruder"? 1 Share this post Link to post Share on other sites
appletart76 0 Posted February 12 in 2nd extruder activating during print The support extruder is 2 but I don't have it checked off in the settings which is weird. Share this post Link to post Share on other sites
