3-link-inverse

This is another in the double ended seifert bubble wand line, it allows you to experiment with creating a bubble seifert surface for a 3 link structure as well as for that same structure with an extra ring around it. this extra ring causes the surface that is created to in effect be all the exterior sections from the surface created without the extra ring. in this sense, the two surfaces created at either end of this wand are inverses since one spans the interior of the three links and the other spans the exterior of the same linkage.