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echox

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  1. Hi Ultimaker board! We have an ultimaker since ~ 7 months. In that time we collected some experience with the machine itself, preparing prints, material, etc. The print which took the most time was the upper part of the Tie Advanced X1 model from Thingiverse ( http://www.thingiverse.com/thing:14480 ) which took about 9h with a layer height of 0.1mm and 100% infill. The ultimaker worked without any problems. Since some weeks printing has become the opposite of fun, because I invested days of debuging the machine... The problem: After ~ 15 Minutes the filament seems stuck. The feeder is still running and grinds into the material. Results look similar to that picture: http://img38.imageshack.us/img38/6213/cam00010.jpg If I push the filament into the feeder, the screw with the knurl will get grip again, and printing works for ~ 2 minutes. Then the problem occurs again. Hardware modifications: [*:29p98pdc]Hot End V2 [*:29p98pdc]Feeder Upgrade with bearing: http://www.thingiverse.com/thing:21674 Things I tried: [*:29p98pdc]Slicing the .stl Files with different settings and slicers (Cura/slic3r) Measured Steps-per-E at 900, but tried Settings between 880 - 920 Tried printing speed between 100 and 120. [*:29p98pdc]Printing PLA between 180 and 215 degrees [*:29p98pdc]Changing PLA (tried 6 different colors/types, including two spools of the 'pink' ultimaker PLA) [*:29p98pdc]Changing hot end (V1, V2) and vary nozzle size between 0.4 and 0.6 [*:29p98pdc]Trying some custom made hot end: http://log.raumzeitlabor.de/post/366808 ... -falschung [*:29p98pdc]Trying to use the original feeder clip, which made the result much worse [*:29p98pdc]Turned off fan at printing head [*:29p98pdc]Cooling the motor drivers on the buttom with a much colder ;-) custom fan [*:29p98pdc]Changing the bowden tube [*:29p98pdc]Firmware Upgrade [*:29p98pdc]Printing without the Ulticontroller [*:29p98pdc]Double checked for any narrowings on the way from the feeder to the print head [*:29p98pdc]Cleaned everything on the feeder... Mainboard revision is 1.5.6 JJ/SW/EdB. Firmware is Marlin 1.0RC2. Firmware Configuration is this one: http://daid.eu/~daid/marlin_build/ ... dSupport=1 Any help would be appreciated :-/
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