first attempt on bed holder

1 files changed, 54 insertions, 3 deletions

diff --git a/delta.jscad b/delta.jscad
index 24c1c7e..0e8fd62 100644
--- a/delta.jscad
+++ b/delta.jscad
@@ -1,95 +1,101 @@
 var PRINT = {
  layer_height: 0.2,
  extrusion_width: 0.4,
 
  fit_tolerance: .2, slide_tolerance: .4, play_tolerance: .6, screw_tolerance: .3
 };
 
 var CONFIG = {
  extrusion: {
   w: 20, slotdepth: 6
  },
  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,
   foot: { ho: 2.5, hi: 5 }
  },
  duetholder: {
   bolt: { d: 3, l: 10, head: { d: 5.33, h: 3 } },
   margin: 3,
   s: 2.5
  },
+ bedholder: {
+  h: 15,
+  margin: 3,
+  nut: { w: 5.4, h: 2.5 },
+  bolt: { d: 3, l: 10, head: { d: 5.33, h: 3 } }
+ },
  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 },
@@ -719,180 +725,225 @@ function duetholder() {
  rv.properties.duet = new CSG.Properties();
  rv.properties.duet.c_sw = new CSG.Connector(cp,[0,0,1],[1,0,0]);
  rv.properties.duet.c_se = new CSG.Connector(cp,[0,0,1],[1,0,0]);
  rv.properties.duet.c_ne = new CSG.Connector(cp,[0,0,1],[-Math.cos(Math.PI/3),-Math.sin(Math.PI/3),0]);
  rv.properties.duet.c_nw = new CSG.Connector(cp,[0,0,1],[-Math.cos(Math.PI/3),Math.sin(Math.PI/3),0]);
  rv.properties.c_h = new CSG.Connector([0,-CONFIG.extrusion.w/2,0],[0,0,1],[1,0,0]);
  rv.properties.c_v = new CSG.Connector([0,0,CONFIG.extrusion.w/2],[0,-1,0],[0,0,1]);
  rv.properties.P = new CSG.Connector([-hw/2,0,0],[1,0,0],[0,1,0]);
  return rv.setColor(CONFIG.color.parts);
 }
 
 function heatbed() {
  var rv = CSG.cylinder({
   start: [0,0,0], end: [0,0,CONFIG.heatbed.h],
   radius: CONFIG.heatbed.r, resolution: 72
  });
  var screw = CSG.cylinder({
   start: [0,-CONFIG.heatbed.sr,-1],
   end: [0,-CONFIG.heatbed.sr,CONFIG.heatbed.h+1],
   radius: 3/2
  });
  var screws = [];
  for(var a=0;a<360;a+=60) screws.push(screw.rotateZ(a)); // TODO: connectors
  rv = rv.subtract(screws);
  rv.properties.c_glass = new CSG.Connector([0,0,CONFIG.heatbed.h],[0,0,1],[1,0,0]);
  rv.properties.P = new CSG.Connector(
   [0,0,-CONFIG.foot.h-CONFIG.extrusion.w*2-CONFIG.base.gap-CONFIG.bedholder.h],
   [0,0,1],[1,0,0]);
  rv.properties.vitamin = true;
  return rv.setColor(CONFIG.color.heatbed);
 }
 function glass() {
  var rv = CSG.cylinder({
   start: [0,0,0], end: [0,0,CONFIG.glass.h],
   radius: CONFIG.glass.r, resolution: 72
  });
  rv.properties.c_bed = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
  rv.properties.P = new CSG.Connector([0,0,-CONFIG.foot.h-CONFIG.heatbed.h],[0,0,1],[1,0,0]);
  rv.properties.vitamin = true;
  return rv.setColor(CONFIG.color.glass);
 }
 function platform() {
  var b = heatbed();
  var g = glass();
  g = g.connectTo(g.properties.c_bed,b.properties.c_glass,false,0);
  return b.union(g);
 }
 
+function bedholder(params) {
+ var h0 = CONFIG.foot.h+CONFIG.extrusion.w*2+CONFIG.base.gap;
+ var bolt_s = CONFIG.bedholder.bolt.l-CONFIG.extrusion.slotdepth+PRINT.play_tolerance*2;
+ var nuth=h0+CONFIG.bedholder.h*3/4;
+ var nutth = nuth+CONFIG.bedholder.nut.h/2+PRINT.slide_tolerance/2;
+ var rv = CSG.roundedCube({
+  corner1: [-CONFIG.extrusion.w/2,-CD.base.inner_inscription_r,h0],
+  corner2: [ CONFIG.extrusion.w/2,-CONFIG.heatbed.sr-3/2-CONFIG.bedholder.margin,h0+CONFIG.bedholder.h],
+  roundradius: CONFIG.bedholder.margin
+ });
+ rv = rv.subtract([
+  CSG.cylinder({ // base screw
+   start: [0,-CD.base.mid_inscription_r,h0-1],
+   end: [0,-CD.base.mid_inscription_r,h0+CONFIG.bedholder.h+1],
+   radius: CONFIG.bedholder.bolt.d/2+PRINT.screw_tolerance/2
+  }),
+  CSG.cylinder({ // bed screw
+   start: [0,-CONFIG.heatbed.sr,h0-1],
+   end: [0,-CONFIG.heatbed.sr,h0+CONFIG.bedholder.h+1],
+   radius: CONFIG.bedholder.bolt.d/2+PRINT.screw_tolerance/2
+  }),
+  CSG.cube({ // nut pocket
+   center: [0,-CONFIG.heatbed.sr,nuth],
+   radius: [CONFIG.extrusion.w/2+1,(CONFIG.bedholder.nut.w+PRINT.slide_tolerance)/2,(CONFIG.bedholder.nut.h+PRINT.slide_tolerance)/2]
+  }),
+  CSG.cylinder({ // sink base screw
+   start: [0,-CD.base.mid_inscription_r,h0+bolt_s],
+   end: [0,-CD.base.mid_inscription_r,h0+CONFIG.bedholder.h+1],
+   radius: CONFIG.bedholder.bolt.head.d/2+PRINT.play_tolerance
+  })
+ ]);
+ rv = rv.union(CSG.cylinder({
+  start: [0,-CONFIG.heatbed.sr,nutth], end: [0,-CONFIG.heatbed.sr,nutth+PRINT.layer_height],
+  radius: (CONFIG.bedholder.nut.w+PRINT.slide_tolerance)/2+PRINT.extrusion_width
+ }));
+ rv = rv.intersect(CSG.cylinder({
+  start: [0,0,h0-1], end: [0,0,h0+CONFIG.bedholder.h+1],
+  radius: CONFIG.heatbed.r, resolution: 270
+ }));
+ rv.properties.P = new CSG.Connector([0,-CD.base.mid_inscription_r,h0],[0,0,1],[1,0,0]);
+ return rv.setColor(CONFIG.color.parts);
+}
+
 var PARTS = {
  wip: function(params) {
   return duetholder(params);
   return PARTS.alltogethernow(params);
   return base_extrusions();
   return foot();
   return union(base_extrusions(),column_extrusions(),duet().translate([0,-20,0]));
  },
  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);
    var s = shoe();
    s = s.connectTo(s.properties.c_foot,rv.properties.c_shoe,false,0);
    return rv.union(s);
   });
   var dh = duetholder();
   var dhsw = dh.connectTo(dh.properties.c_h,
    new CSG.Connector([-CONFIG.duet.hole_spacing.x/2,-CD.base.mid_inscription_r,CONFIG.foot.h],[0,0,1],[1,0,0]),
    false,0);
   var d = duet();
   d = d.connectTo(d.properties.holes.c_sw,dhsw.properties.duet.c_sw,false,0);
   var dhse = dh.connectTo(dh.properties.duet.c_se,d.properties.holes.c_se,false,0);
   var dhne = dh.connectTo(dh.properties.duet.c_ne,d.properties.holes.c_ne,false,0);
   var dhnw = dh.connectTo(dh.properties.duet.c_nw,d.properties.holes.c_nw,false,0);
   var rv = union(cols).union(sides.map(union)).union(feet).union([
    d,dhsw,dhse,dhne,dhnw
   ]);
   var p = P(platform());
   rv = rv.union(p);
   rv.properties.P = new CSG.Connector([0,0,0],[0,0,1],[1,0,0]);
   return rv;
  },
  duetholder: function(params) {
   return duetholder();
  },
  foot: foot,
- shoe: shoe
+ shoe: shoe,
+ bedholder: bedholder
 };
 
 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 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);
 }
 
 
 function getParameterDefinitions() {
  return [{
   name: 'part',
   type: 'choice',
   values: [
    'platform',
    'hinged',
    'clamp',
    'fanholder',
    'duetholder',
    'foot', 'shoe',
+   'bedholder',
    'alltogethernow',
    'wip'
   ],
   captions: [
    'Effector platform',
    'Hinged part',
    'Clamp',
    'Fan holder',
    'Duet holder',
-   'Foot',
-   'Shoe',
+   'Foot', 'Shoe',
+   'Bed 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: */