1 files changed, 18 insertions, 2 deletions

diff --git a/delta.jscad b/delta.jscad
index ad19f88..eb538d2 100644
--- a/delta.jscad
+++ b/delta.jscad
@@ -1,286 +1,288 @@
 var PRINT = {
  layer_height: 0.2,
  extrusion_width: 0.4,
 
  fit_tolerance: .2, slide_tolerance: .4, play_tolerance: .6
 };
 
 var CONFIG = {
  extrusion: {
   w: 20
  },
  base: {
           el: 240,      // side extrusion length
           sl: 240+2*70,         // triangle side length
           gap: 9        // vertical gap between side extrusions
  },
  column: {
           h: 600        // column height
  },
  heatbed: {
           r: 220/2,     // heatbed radius
           sr: 220/2-4.5,// radius of the screwholes circle
           h: 3+1.5      // thickness (including insulation)
  },
  glass: {
           r: 195/2,     // glass radius
           h: 3          // glass thickness
  },
  duet: {
   pcb_size: { x: 124, y: 100, z: 1 },
   hole_spacing: { x: 115, y: 92 },
   h: 30
  },
  foot: {
   d: 20*Math.sqrt(2), h: 30,
   bolt: { d:5, l: 19, hd: 10 },
   margin: 2.5,
   nut: { d: 8.6 /* TODO: */, h: 3.5 },
   shell: 4,
-  zscalefactor: 1.6
+  zscalefactor: 1.6,
+  foot: { ho: 2.5, hi: 5 }
  },
  hotend: {
           h: 62.4,              // full assembly height
           groove: { d:12, h:6 }, // grove diameter and height
   ungroove: { d:16, above:3.7, below: 3+4 }
  },
  effector: {
   h: 6,
           o: 20,// offset to the rod mounts line
   rods_apart: 40,
   cone: { shell: 1, angle: Math.PI/6 },
   rodend: {
            joint_w: 7,// thickness of the joint
    screw_l: 20-1, // 20 with the head
    screw_d: 3
   },
   hotend: { margin: 2 },
   hinge: {
    d: 3, w: 5, margin: 2.5,
    h: 1+(6+3.7)/2, // elevation + grove + top
    e: 1 // elevation
   },
   clamp: {
    shell: 4.6,
    d: 3,
    margin: 2.5,
    split: 0.6
   },
   mswitch: {
    size: [ 19.8, 6, 10 ],
    screw: {
     d: 2, h: 10/2-2,
     s: 1.3, // screw shell
     o: [-9.5/2,9.5/2].map(function(x) {
      return -19.8/2+x;
     })
    },
    switch_x: 2.5
   },
   guide: {
    width: 3, height: 5+1, length: 6
   },
   fanholder: {
    r: 30,
    screw: { d: 3, m: 2.5/*margin*/ },
    w: 3
   }
  },
  nut: { h: 2.3, w: 5.5 },
  color: {
   extrusion: [0.8, 0.8, 0.8, 0.8],
   pcb: [ 0, 0.3, 0.2, 0.8 ],
   bulk: [ .9, .9, .9, .2 ],
-  parts: [ 0, 0.8, 0, 0.9 ]
+  parts: [ 0, 0.8, 0, 0.9 ],
+  softparts: [ 0, 0, 0.8, 0.9 ]
  }
 };
 
 var CD = {
  base: (function(){
   var rv = {};
   rv.circumscription_r =
    CONFIG.base.sl/2/Math.cos(Math.PI/6);
   rv.outer_inscription_r =
    Math.sqrt(Math.pow(rv.circumscription_r,2)-
     Math.pow(CONFIG.base.sl/2,2));
   rv.mid_inscription_r =
     rv.outer_inscription_r-CONFIG.extrusion.w/2;
   rv.inner_inscription_r =
     rv.outer_inscription_r-CONFIG.extrusion.w/2;
   // TODO: properly calculate
   rv.column_r = rv.circumscription_r - 48.29;
   return rv;
  })()
 };
 
 var U = {
  hypotenuse: function(a,b) {
   return Math.sqrt(Math.pow(a,2)+Math.pow(b,2));
  },
  peek: function(x,m) {
   console.log(x,m);
   return x;
  }
 };
 
 /* {h:,w:} */
 function nut(o) {
  var rv = CSG.cylinder({
   start:[0,0,0],end:[0,0,o.h],
   radius: o.w/2/Math.cos(Math.PI/6),
   resolution: 6
  });
  rv.properties.axis_connector = new CSG.Connector([0,0,0],[0,0,1],[0,1,0]);
  return rv;
 }
 
 var E3DV6 = {
  dimensions: {
   big_d: 22.3,
 
  },
  heatsink: function() {
   var fn = 16;
   var z=0;
   var unite = [ {d:16,h:3.7},{d:12,h:6},{d:16,h:3} ].map(function(x) {
    return CSG.cylinder({
     start: [0,0,z], end: [0,0,z-=x.h],
     radius: x.d/2, resolution: fn
    });
   });
   unite.push(CSG.cylinder({
    start:[0,0,z-=1.5], end:[0,0,z-=1],
    radius: 16/2, resolution: fn
   }));
   for(var i=0;i<11;++i) unite.push(CSG.cylinder({
    start:[0,0,z-=1.5], end:[0,0,z-=1],
    radius: this.dimensions.big_d/2, resolution: fn
   }));
   unite.push(CSG.cylinder({
    start:[0,0,z], end: [0,0,-12.7],
    radiusStart: 10/2, radiusEnd: 8.5/2, /* pretty arbitrary */
    resolution: fn
   }));
   var rv = union(unite);
   rv = rv.subtract([CSG.cylinder({
    start:[0,0,1], end: [0,0,z-1],
    radius: 4.2/2, resolution: fn
   }),CSG.cylinder({
    start:[0,0,1], end: [0,0,-6.7/*somewhat arbitrary*/],
    radius: 8/2, resolution: fn
   }),CSG.cylinder({
    start:[0,0,z-1], end: [0,0,z+14.8],
    radius: 6/2 /*M7*/, resolution: fn
   })]);
   rv.properties.pushfit_connector = new CSG.Connector([0,0,0],[0,0,-1],[1,0,0]);
   rv.properties.heatbreak_connector = new CSG.Connector([0,0,z+14.8],[0,0,-1],[1,0,0]);
   rv.properties.grove_connector = new CSG.Connector([0,0,-3.7-3],[0,0,1],[1,0,0]);
   return rv.setColor([0.8,0.8,0.8,0.9]);
  }
 };
 
 var EFFECTOR = {
  /* {sd: screw diameter, l: cone length, s: screw shell, a: angle from axis} */
  cone: function effector_cone(o) {
   var re = o.sd/2+o.s, rs = re+o.l*Math.tan(o.a||(Math.PI/4));
   var rv = CSG.cylinder({
    start: [0,0,0], end: [0,0,o.l],
    radiusStart: rs, radiusEnd: re,
    resolution: Math.floor(rs*2*2)
   }).subtract(CSG.cylinder({
    start:[0,0,-1], end:[0,0,o.l+1], radius: o.sd,
    //resolution: Math.floor(o.sd*2*2)
   }));
   rv.properties.top_connector = new CSG.Connector([0,0,o.l],[0,0,-1],[1,0,0]);
   rv.properties.bottom_connector = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
   var nuthole = nut(CONFIG.nut);
   rv = rv.subtract(nuthole.connectTo(
    nuthole.properties.axis_connector, rv.properties.bottom_connector,
    false, 0
   ));
   return rv.intersect(CSG.cylinder({start:[0,0,0],end:[0,0,o.l],radius:6/*TODO:calculate*/}));
  },
  platform_bb: function platform_bb() {
   var e = CONFIG.effector;
   var r = U.hypotenuse(e.rods_apart/2,e.o+e.rodend.screw_d/2+e.cone.shell);
   var rv = CSG.sphere({
    center: [0,0,e.h/2], radius: r,
    resolution: r*2*2
   }).intersect(CSG.cube({
    corner1: [-r,-r,0], corner2: [r,r,e.h]
   }));
   rv.properties.base_connector = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
   return rv;
  },
  effector: function effector_effector() {
   var e = CONFIG.effector;
   var conel = e.rodend.screw_l-e.rodend.joint_w;
   var nutr = CONFIG.nut.w/2/Math.cos(Math.PI/6);
   var cone = this.cone({sd:e.rodend.screw_d/2,l:conel,s:e.cone.shell,a:e.cone.angle});
   var rcorner = U.hypotenuse(e.o-e.rodend.screw_d/2-e.cone.shell,e.rods_apart/2)-3.85; //XXX:config/calc
   var ropen = E3DV6.dimensions.big_d/2+e.hotend.margin;
   var rmount = this.rmount = (rcorner+ropen)/2;
   var rv = [];
   for(var a=0;a<360;a+=120) {
    rv.push(union([-1,1].map(function(s) {
     return cone.connectTo(cone.properties.top_connector,
      new CSG.Connector([s*e.rods_apart/2,e.o,e.h/2],[-s,0,0],[0,0,1]),
      false, 0);
    })).union(CSG.cube({
     corner1:[e.rods_apart/2-conel+.1,e.o-nutr,0],
     corner2:[-e.rods_apart/2+conel-.1,
      -rcorner,
      e.h]
    })).rotateZ(a));
   }
   rv.push(CSG.cylinder({
    start:[0,0,0], end:[0,0,e.h],
    radius: U.hypotenuse(e.o-nutr,e.rods_apart/2-conel)
   }));
   rv = union(rv).intersect(this.platform_bb()).subtract(CSG.cylinder({
    start:[0,0,-1], end:[0,0,e.h+1],
    radius: ropen, resolution: ropen*4
   })).subtract([/*0, probe here*/120,240].map(function(x) { /* nut pockets */
    return CSG.cube({
     corner1:[-CONFIG.nut.w/2,0,(e.h-CONFIG.nut.h)/2],
     corner2:[CONFIG.nut.w/2,-rcorner-1,(e.h+CONFIG.nut.h)/2]
    }).union(CSG.cylinder({
     start:[0,-rmount,-1], end:[0,-rmount,e.h+1],
     radius: 3/2 // XXX:
    })).subtract(CSG.cylinder({
     start:[0,-rmount,(e.h+CONFIG.nut.h)/2],
     end:[0,-rmount,(e.h+CONFIG.nut.h)/2+PRINT.layer_height*3/2],
     radius: 3/2+.1
    })).rotateZ(x);
   })).subtract( CSG.cylinder({ // pulldown screw
    start: [0,-rcorner+e.mswitch.size[1]+PRINT.extrusion_width+3/2/*XXX:conf*/,-1],
    end: [0,-rcorner+e.mswitch.size[1]+PRINT.extrusion_width+3/2/*XXX:conf*/,e.h+1],
    radius: 3/2+1 /*XXX: config */
   })).subtract( CSG.cylinder({ /* switch-screw */
    start: [e.mswitch.switch_x,-rcorner+e.mswitch.size[1]/2,-1],
    end: [e.mswitch.switch_x,-rcorner+e.mswitch.size[1]/2,e.h+1],
    radius: e.mswitch.screw.d/2
   }));
   // add hinges
   rv.properties.hinge_connector=new CSG.Properties();
   var hinges_apart=e.rods_apart/2-conel;
   rv = rv.union([-1,1].map(function hinge(s) {
    rv.properties.hinge_connector[s]=new CSG.Connector([s*hinges_apart,e.o,e.h+e.hinge.h],[s,0,0],[0,0,1]);
    return CSG.cube({
     corner1: [s*hinges_apart,e.o-e.hinge.margin-e.hinge.d/2,e.h],
     corner2: [s*(hinges_apart+e.hinge.w),e.o+e.hinge.margin+e.hinge.d/2,e.h+e.hinge.h]
    }).union(CSG.cylinder({
     start: [s*hinges_apart,e.o,e.h+e.hinge.h],
     end: [s*(hinges_apart+e.hinge.w),e.o,e.h+e.hinge.h],
     radius: e.hinge.d/2+e.hinge.margin
    })).subtract(CSG.cylinder({
     start: [s*(hinges_apart-1),e.o,e.h+e.hinge.h],
     end: [s*(hinges_apart+e.hinge.w+1),e.o,e.h+e.hinge.h],
     radius: e.hinge.d/2
    }));
   }));
   // add clamp guides
   var cgrr = e.guide.width/3;
   rv = rv.union([-1,1].map(function guide(s) {
    return CSG.roundedCube({
     center: [s*(e.mswitch.size[0]+PRINT.slide_tolerance+e.guide.width)/2,-rcorner+e.guide.length/2,e.h+e.guide.height/2-cgrr],
@@ -447,295 +449,309 @@ function microswitch() {
  ).union(
   [-8,-1,8].map(function(x) {
    return CSG.cube({ center:[x,0,0], radius: [0.6/2,3.2/2,13/2] })
   })
  ).subtract(
   [-9.5/2,9.5/2].map(function(x,i) {
    screw_connector[i] = new CSG.Connector([x,6/2,0],[0,-1,0],[0,0,1]);
    return CSG.cylinder({
     start: [x,-4,0], end: [x,4,0],
     radius: 2/2
    })
   })
  );
  rv.properties.switch_connector = new CSG.Connector([2.5,0.5,6+5/2],[0,0,1],[0,-1,0]);
  rv.properties.screw_connector = screw_connector;
  rv.properties.microswitch = new CSG.Properties();
  rv.properties.microswitch.size = new CSG.Vector3D(
   19.8,6,10
  );
  return rv;
 }
 
 var FOURWINDS = [0,90,180,270];
 
 var E2020 = {
  outer: 20, thickness: 1.8,
  roundius: 1, centerhole: 5,
  slot_width: 6,
  T: { width: 10, thickness: 1.5, depth: 6.5 },
 
  extrusion: function(o) {
   if(!o) o = {};
   var e = o.extrusion || this;
   var l = o.l||5;
   var iy = e.outer/2-e.T.depth;
   var ix = e.T.width/2-(e.outer/2-iy-e.thickness-e.T.thickness);
   var rv = CAG.roundedRectangle({
    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],
     [ -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( columns() );
  rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
  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.c_column = new CSG.Connector([0,0,F.h],[0,0,1],[1,0,0]);
  rv.properties.P = new CSG.Connector([0,0,F.h],[0,0,-1],[1,0,0]);
  return rv.setColor(CONFIG.color.parts);
 }
+function foot_foot() {
+ // TODO: connect in the altogethernow?
+ var F = CONFIG.foot;
+ var rv = CSG.cylinder({
+  start: [0,0,0], end: [0,0,F.foot.ho],
+  radius: F.bolt.hd/2+F.margin
+ }).union(CSG.cylinder({
+  start: [0,0,0], end: [0,0,F.foot.ho+F.foot.hi],
+  radius: F.bolt.hd/2+PRINT.play_tolerance-PRINT.fit_tolerance
+ }));
+ rv.properties.c_foot = new CSG.Connector([0,0,F.foot.ho],[0,0,1],[1,0,0]);
+ rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
+ return rv.setColor(CONFIG.color.softparts);
+}
 
 function refaxes(o) {
  if(!o) o = {};
  var l = o.l||20, g = o.g||0.7;
  return union([
   CSG.roundedCylinder({start:[0,0,0],end:[l,0,0]}).setColor([1,0,0,g]),
   CSG.roundedCylinder({start:[0,0,0],end:[0,l,0]}).setColor([0,1,0,g]),
   CSG.roundedCylinder({start:[0,0,0],end:[0,0,l]}).setColor([0,0,1,g])
  ]);
 }
 
 function P(x) {
  return x.connectTo(x.properties.P,new CSG.Connector([0,0,0],[0,0,1],[1,0,0]), false, 0);
 }
 
 var PARTS = {
  wip: function(params) {
   return foot();
   return union(base_extrusions(),column_extrusions(),duet());
  alltogethernow: function(params) {
   var cols = columns();
   var sides = base_sides();
   var feet = THREEWINDS.map(function(w,i) {
    var rv = foot();
    rv = rv.connectTo(rv.properties.c_column,cols[i].properties.c_bottom,false,0);
    return rv;
   });
   var rv = union(cols).union(sides.map(union)).union(feet);
   rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
   return rv;
  }
 };
 
 function main(params) {
  var part = params.part && PARTS[params.part];
  if(!part) return refaxes();
  var rv = P(part(params));
  if(!params.print) rv = rv.union(refaxes());
  return rv;
 }
 
 function _main(params) {
  var e = EFFECTOR.effector();
  var hs = E3DV6.heatsink();
  hs = hs.connectTo(hs.properties.grove_connector,e.properties.grove_connector,false,0);
  var ms = microswitch();
  var hd = EFFECTOR.hinged({
   microswitch:ms,effector:e
  });
  ms = ms.connectTo(
   ms.properties.screw_connector[0],
   hd.properties.microswitch_screw_connector[0],
   false, 0);
  var hdhd = EFFECTOR.split_hinged(hd);
  var fh = EFFECTOR.fanholder();
  return union({
   platform: e,
   hinged: hdhd[1],
   clamp: hdhd[0],
   fanholder: fh,
   alltogethernow: [e,hdhd[0],hdhd[1], columns(),hs,ms,fh]
  }[params.part||'alltogethernow'])
  var rv = union(
   e,
   hs,
   columns(),
   ///hd,
   hdhd[0], hdhd[1],
   ms);
  return rv;
 }
 
 function getParameterDefinitions() {
  return [{
   name: 'part',
   type: 'choice',
   values: [
    'platform',
    'hinged',
    'clamp',
    'fanholder',
    'alltogethernow',
    'wip'
   ],
   captions: [
    'Effector platform',
    'Hinged part',
    'Clamp',
    'Fan holder',
    'All together now!',
    'Work in progress'
   ],
   caption: 'Part',
   initial: 'wip'
  },{
   name: 'print',
   type: 'checkbox',
   caption: 'For print, no nonsense',
   initial: false
  }];
 }
 
 /* vim:set ft=javascript ai: */