extrusion: midway connector and vitamin designation

1 files changed, 2 insertions, 0 deletions

diff --git a/delta.jscad b/delta.jscad
index 547b51e..c134c29 100644
--- a/delta.jscad
+++ b/delta.jscad
@@ -491,49 +491,51 @@ var E2020 = {
    corner1: [-e.outer/2,-e.outer/2], corner2: [e.outer/2,e.outer/2],
    roundradius: e.roundius
   }).subtract(
    FOURWINDS.map(function(w) {
     return CAG.fromPoints([
      [  e.slot_width/2,e.outer/2+1],
      [  e.slot_width/2,e.outer/2-e.thickness],
      [  e.T.width/2,e.outer/2-e.thickness],
      [  e.T.width/2,e.outer/2-e.thickness-e.T.thickness],
      [  ix, iy ],
      [ -ix, iy ],
      [ -e.T.width/2,e.outer/2-e.thickness-e.T.thickness],
      [ -e.T.width/2,e.outer/2-e.thickness],
      [ -e.slot_width/2,e.outer/2-e.thickness],
      [ -e.slot_width/2,e.outer/2+1],
     ]).rotateZ(w);
    })
   ).subtract(CAG.circle({
    center: [0,0], radius: e.centerhole/2
   })).extrude({offset:[0,0,l]});
   rv.properties.c_top=rv.properties.c_left
    = new CSG.Connector([0,0,l],[0,0,-1],[1,0,0]);
   rv.properties.c_bottom=rv.properties.c_right
    = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
+  rv.properties.c_midway = new CSG.Connector([0,0,l/2],[0,0,1],[1,0,0]);
   rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
+  rv.properties.vitamin = true;
   return rv;
  },
 
  cap: function extrusion_cap(o) {
   if(!o) o = {};
   var e = o.extrusion || this;
   var thickness = o.thickness||2, l = o.l||5;
   var rv = CSG.roundedCube({
    corner1: [-e.outer/2,-e.outer/2,thickness],
    corner2: [e.outer/2,e.outer/2,0],
    roundradius: [e.roundius,e.roundius,0]
   });
   var fw = [0,90,180,270]; // four winds
   var iy = e.outer/2-e.T.depth;
   var ix = e.T.width/2-(e.outer/2-iy-e.thickness-e.T.thickness);
   rv = rv.union(fw.map(function(w) {
    return CAG.fromPoints([
     [  e.slot_width/2,e.outer/2],
     [  e.slot_width/2,e.outer/2-e.thickness],
     [  e.T.width/2,e.outer/2-e.thickness],
     [  e.T.width/2,e.outer/2-e.thickness-e.T.thickness],
     [  ix, iy ],
     [ -ix, iy ],
     [ -e.T.width/2,e.outer/2-e.thickness-e.T.thickness],