1 files changed, 10 insertions, 4 deletions

diff --git a/delta.jscad b/delta.jscad
index 7dedfab..2e6365c 100644
--- a/delta.jscad
+++ b/delta.jscad
@@ -502,134 +502,140 @@ var E2020 = {
    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],
     [ -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],
    ]).extrude({offset:[0,0,l+thickness]}).rotateZ(w);
   }));
   rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
   return rv;
  }
 };
 
 var THREEWINDS = [0,120,240];
 
 function base_sides() {
  return [0,1].map(function(l) {
   return THREEWINDS.map(function(w) {
    var e = E2020.extrusion({l:CONFIG.base.el});
    e = e.connectTo(e.properties.c_midway,
     new CSG.Connector([0,-CD.base.mid_inscription_r,CONFIG.extrusion.w/2],[1,0,0],[0,0,1]),
     false, 0);
    return ( e.translate([0,0,CONFIG.foot.h+l*(CONFIG.extrusion.w+CONFIG.base.gap)])
     .rotateZ(w)
     .setColor(CONFIG.color.extrusion) );
   });
  });
 }
 function base_extrusions() {
  var rv = union( base_sides().map(function(x){return union(x)}) );
  rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
  return rv;
 }
 
+function columns() {
+ return THREEWINDS.map(function(w) {
+  return (E2020.extrusion({l:CONFIG.column.h})
+   .translate([0,CD.base.column_r,CONFIG.foot.h])
+   .rotateZ(w).setColor(CONFIG.color.extrusion)
+  );
+ });
+}
 function column_extrusions() {
- var rv = union( THREEWINDS.map(function(w) {
-  return E2020.extrusion({l:CONFIG.column.h}).translate([0,CD.base.column_r,0]).rotateZ(w);
- }) );
+ var rv = union( columns() );
  rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
- return rv.setColor(CONFIG.color.extrusion);
+ return rv;
 }
 
 function duet() {
  var C = CONFIG.duet;
  var pholes = new CSG.Properties();
  var hx = C.hole_spacing.x/2;
  var hy = C.hole_spacing.y/2;
  var hh = { nw: [1,-1], ne: [1,1], se: [-1,1], sw: [-1,-1] };
  var holes = [];
  for(w in hh) {
   var h = hh[w],_x=h[0]*hx,_y=h[1]*hy;
   holes.push(CSG.cylinder({start:[_x,_y,-1],end:[_x,_y,C.pcb_size.z+1],radius:3/2}));
   pholes['c_'+w] = new CSG.Connector([_x,_y,0],[0,0,1],[1,0,0]);
  }
  rv = CSG.cube({
   corner1: [-C.pcb_size.x/2, -C.pcb_size.y/2,            0],
   corner2: [ C.pcb_size.x/2,  C.pcb_size.y/2, C.pcb_size.z]
  }).subtract(holes).setColor(CONFIG.color.pcb).union(
   CSG.cube({
    corner1: [-C.pcb_size.x/2,-C.hole_spacing.y/2+3,C.pcb_size.z],
    corner2: [ C.pcb_size.x/2, C.hole_spacing.y/2-3,C.h]
   }).setColor(CONFIG.color.bulk)
  );
  rv.properties.holes = pholes;
  rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
  rv.properties.vitamin = true;
  return rv;
 }
 
 function foot() {
  var F = CONFIG.foot;
  var br = F.bolt.hd/2+F.margin;
  var bh = F.zscalefactor*Math.sqrt(Math.pow(F.d/2,2)-Math.pow(br,2));
  var th = F.h-bh;
  var r = 2*F.d;
  var rv = CSG.sphere({ // botom contorted sphere
   center: [0,0,0], radius: F.d/2, resolution: r
  }).scale([1,1,F.zscalefactor]).translate([0,0,bh]).union(CSG.cylinder({ // top hat
   start: [0,0,bh], end: [0,0,F.h], radius: F.d/2, resolution: r
  })).intersect(CSG.cylinder({ // cut off excess
   start: [0,0,0], end: [0,0,F.h], radius: F.d
  })).subtract([
    CSG.cylinder({ // bolt hole
    start: [0,0,-1], end: [0,0,F.h+1], radius: F.bolt.d/2+PRINT.slide_tolerance
   }), CSG.cylinder({ // nut hole
    start: [0,0,F.h-F.nut.h-PRINT.play_tolerance],
    end: [0,0,F.h],
    radius: F.nut.d/2+PRINT.slide_tolerance, resolution: 6
   }), CSG.cylinder({ // bolthead/washer hole
    start: [0,0,-1], end: [0,0,F.h-F.nut.h-PRINT.play_tolerance-F.shell],
    radius: F.bolt.hd/2+PRINT.play_tolerance
   })
  ]).union(CSG.cylinder({ // bridging patch
   start: [0,0,F.h-F.nut.h-PRINT.play_tolerance-PRINT.layer_height],
   end: [0,0,F.h-F.nut.h-PRINT.play_tolerance],
   radius: F.nut.d/2
  }));
  rv.properties.P = new CSG.Connector([0,0,F.h],[0,0,-1],[1,0,0]);
  return rv.setColor(CONFIG.color.parts);
 }
 
 function refaxes(o) {
  if(!o) o = {};
  var l = o.l||20, g = o.g||0.7;