Still having issues with the top of these and other hollow prints dipping but the quality is getting better 
Use a bit of infill - works a treat on these smaller objects - plus adds a bit to the layer time so it cools a but more.
True :), they come out pretty well.
I’ve seen it done well hollow too and thought it’d be a nice challenge to try it out myself.
Why hollow? Extra top layers would help.
Soz I meant normal infill, I’d set top infill in slic3r but somewhere in between thay and printrun those layers didn’t print properly.
I managed to get better results with repetier though 