Hmmmm Seems like the overture brand fails on larger area prints. Clean bed, nozzle temp, bed temp, speed had no effect on print quality. I was begining to think to the file was corupted , so I reDL'd original file again and again. Yet the O'ture orange filiment has no problems printing temp towers and retract towers. always fails when it tries to stick in itself? The grey BB8 is Pol..roid brand and the printed 99% perfect FIRST TIME. The last orange BB8 was printed right after grey with SAME SETTINGS and failed. The orange prints was from a brand new unopened roll PLA. The grey filament is stored on a shelf out of package in 44% humidity. Any ideas?