Minimal spooler using threaded rod

A quick to print and use  spool adapter for some respooling/splicing. Printed well small cone end down with no supports. Used 5/16 threaded rod and nuts. I cut the head off a long bolt, which also works. 

Just enough of a pattern on the outside face to help tighten it up. But not enough to really torque it down too tight.    

Example was printed with scrap wet Petg at the fastest settings. Not pretty but works. Need->FreeCad-Print->Use in about 90 minutes or less.