Any tips on bowden setups? I am struggling with retraction and coasting, stringing and oozing.
Mini Hotend, B’struder, just changed drive gear to MK8 from MK7, 140 Esteps/mm 20mm/s retraction speed. Went up to 150mm travel speed but had Hatchbox stringing under control at 80mm/s. main problem is cannot get filament to stop oozing and bowden tube movement seems to cause pressure changes in melt zone.
Can get to work with Hatchbox ok, but overhangs in the 70-80 degree range string, oddly it bridges perfectly just over extrudes on overhang corners it travels around.
Atomic filament has been rough, switched to new roll of it to try it thinking it was better (more expensive and US manufacture). but it is seemingly less consistent with over extruded layers and huge extrusion width of at times .9 or more. may be my settings causing that as I am new to Bowden.
The bowden tube is roughly 520mm, need to shorten that I guess. Planning on mounting extruder on a rail hanging down from side top just above where it will interfere with print area top layers.
images:
Black is hatchbox, working OK with stock Mini Kossel Dodecahedron G code. Was tuning the overhang over extrusion and found the stock G Code example is set to under extrude for surface quality which isn’t really functional for me, making prototypes of working parts normally. Got the overhangs to be cleaner but not perfect and can still see every retraction on the surface.
White is Atomic Filament, struggling with this stuff but need to make it work it’s my only white PLA right now and my only full new roll 
