Twisted Bead, Parametric

**Update:** Check out the [remixed version](http://www.thingiverse.com/thing:2043337) of this, for an improved Grasshopper definition.

January 4

Just a quick little parametric model for making beads. Draw a silhouette curve. Draw a curve for the repeated sweep profile. Adjust the hole size and the "twistiness", and call it done.

The included STL has a large, flat base to help promote adhesion.

This is for Pittsburgh's [Fun a Day, 2017](http://funadaypgh.blogspot.com).