Twisted Vase, Parametric

January 12 & 16

I did a little work on the Grasshopper definition for the [Twisted Bead](http://www.thingiverse.com/thing:2028465). This is a little more suitable for making vases. Just draw the driving curves, move the base point to control scale, and set the amount of twist and the number of surface texture repeats. I usually work in Rhino to tweak the form generated by the Grasshopper definition. The [CageEdit](http://docs.mcneel.com/rhino/5/help/en-us/commands/cageedit.htm) command is goo