Stringinging cubes test

Description

These cubes are perfect to check stringinging (and multiple check for other tests). There is a bottom layer connecting the cubes so you can mark and keep them. I normally check with new filaments by default: * slicing with 0.2mm, 2 perimeters, 1-3 bottom layers, no top layer and no infill. * choose a reasonable speed (50mm/s) (modify later by GCode M220 S ) * "normal" temperatures for bed and hot end (modify during print to check for influence of temp) * travel speed to 200mm/s * retraction 5mm, 60mm/s (550mm bowden to e3d) The boxes are 20mm, and distance 10, 20 and 40mm between each. After temperature sweet spot is found, one can play with travel speed and retraction.