This printed beautifully and the end result was really fun. It is a little time consuming getting all of the supports removed, but it's worth the effort.

This is a very useful design that works perfectly for securing the filament end in a spool. There is just enough friction to keep the free end from pulling out. I am also using different colors to ID various filament families.

Printed perfectly on a C1X without supports. I also performs perfectly, keeping our basil plant watered while we took a 4 day vacation

Printed as designed with PLA basic and it came out perfectly.