This is only the very first test...more on: www.facebook.com/europerminutedesign www.rooiejoris.nlPrint with very very high extruder speed and with a big [0.8mm] nozzle. in sf46 the most important settings are: layer thickness: 1.1mm w/h ratio: 2.1 feed rate: 45 flow rate: 1250 [ in reality 2x, i did put my stepper driver not on micro stepping, but less steps a round, so it moves twice as fast as 'normal'] the extruder wheel is really spinning like crazy...! temp: 240 degUPDATE:material is PLAhigher temp for more liquid PLA [be careful if your nozzle holder is not PEEK]flow/feedrate depends also on your firmware i think in sf<40 i did 'normal' 0.8mm prints with more or less flowrate = 1.5*feedrate, with my first experiments with sf>40 i got very high values, maybe because my firmware still thinks it is using sf<40 [i am not so good in software...]microstepping off, only for extruder, that is the one who needs high speed [on the ultimaker due to gears]0.8 nozzle was original nozzle drilled with 0.8mm drill, but also an ordinary closed bold [?!] could workz-adjustments by hand did the control between smooth and irregular, higher z, more irregularity.