I have printed all pieces (except caps) with no issues but when i print the ball my printer ejects the filament about 3% into the print while its printing the brim. on my last attempt the extruder moved to a corner of the bed and started pumping out fillament and formed like a herseys kiss until i aborted print. i have attempted to print these balls about 10 times but only have had success on 3. i always home all motors and also set origin on the extruder before starting the print. i am using the same settings as all other pieces. do you think there is an error in the file that could cause this? my printer is fairly new only has about 1.5 days of use on it so far.