Ok, brand new UM3, tried printing with Cura and was soon reminded of the reasons I don't use Cura.
So I decided to switch over to trusty S3D.
The first sign that things were not going well was the "prime" line. It started with the left extruder and drew a line from the left side to the center. That went OK. It then moved to the right side and used the right extruder to draw a line that I am going to assume was supposed to stop in the center. It doesn't. It continues, plowing into the line it already drew with the other, forcibly pushing the build plate down in the process.
I don't exactly know what the desired behavior is here. Is it supposed to draw two partial lines, meeting in the middle? Is it supposed to draw two full lines that are not on top of each other? Either way, its not working.
Next it tried to print, but very little filament came out. Filament extruded just fine during the "prime" process, but almost nothing came out. I tried checking temperatures and the heads (appeared) to be the correct temperature.
Finally, I aborted the print and when it tried to home print head, it continued to try and force it into the corner (when it was already at the minimum location) and made an ugly grinding noise.
I tried the whole process a second and third time with the exact same results.
Everything is calibrated, the beds are level, and it prints "just fine" with Cura (just fine meaning only the normal Cura issues like supports and oozing)
I really want to use S3D for my UM3 but its not making it easy on me! Is there anyone that can help?