A fast design of a wicking aid.
Works very well. You'll need an additional 2.5mm drill and a tiny screw (M3).
Simply ensure after printing that the smooth end of the drill runs free in the part with the screw, then stuck the drill in the part with the cut.
OpenSCAD included, feel free to change for your needs (other diameterss etc...)
PLA, other materiel will work, too