I tried to print my own support yesterday for the first time. First I drew 0.4mm thick ribs (ACAD 2015), but Cura wouldn't take them over. Only from 0.6mm thickness on they would appear in Cura, so I made them 0.8mm (2x nozzle size).
Today, I tried to remove the support. It was OK-ish. However, it would be nice to have thinner attach points to the object, which would make it easier (possible) to break off the support. Next time I'll try to chamfer the support edges, but I'm not sure that it will work, considering the nozzle size/support thickness.