bed holder redesign

1 files changed, 53 insertions, 0 deletions

diff --git a/delta.jscad b/delta.jscad
index 12bdb97..e9fb773 100644
--- a/delta.jscad
+++ b/delta.jscad
@@ -708,192 +708,245 @@ function shoe() {
 
 function duetholder() {
  var DH = CONFIG.duetholder;
  var DHD = CD.duetholder;
  var hw = DH.bolt.head.d+2*DH.margin;
  var s = DH.bolt.l-CONFIG.extrusion.slotdepth+PRINT.play_tolerance*2;
  var lower = CONFIG.foot.h-2*DH.s;
  var hl = DHD.distance-CONFIG.extrusion.w;
  var rv = union([
   CSG.cube({ // vertical
    corner1: [-hw/2,s,CONFIG.extrusion.w],
    corner2: [hw/2,0,-lower]
   }),
   CSG.cube({ // horizontal extrusion
    corner1: [-hw/2,-CONFIG.extrusion.w,0],
    corner2: [ hw/2,0,-s]
   }),
   CSG.cube({ // horizontal
    corner1: [-hw/2,0,-lower],
    corner2: [hw/2,hl,-lower+DH.s]
   }),
   CSG.cylinder({ // boltend of horizontal part
    start: [0,hl,-lower], end: [0,hl,-lower+DH.s],
    radius: hw/2
   })
  ]);
  rv = rv.subtract([
   CSG.cylinder({ // through vertical
    start: [0,-1,CONFIG.extrusion.w/2], end: [0,s+1,CONFIG.extrusion.w/2],
    radius: DH.bolt.d/2+PRINT.slide_tolerance
   }),
   CSG.cylinder({ // through horizontal to extrusion
    start: [0,-CONFIG.extrusion.w/2,-s-1],
    end: [0,-CONFIG.extrusion.w/2,1],
    radius: DH.bolt.d/2+PRINT.slide_tolerance
   }),
   CSG.cube({ // cut off
    corner1: [-hw/2-1,-2*s,0],
    corner2: [hw/2+1,0,-2*s]
   }).rotateX(45).translate([0,-CONFIG.extrusion.w,0]),
   CSG.cylinder({ // duet bolt
    start: [0,hl,-lower], end: [0,hl,-lower+DH.s],
    radius: DH.bolt.d/2+PRINT.slide_tolerance
   })
  ]);
  var cp = [0,hl,-lower+DH.s];
  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 e_h=E2020.T.thickness; // height of the bump for extrusion
+ var e_w=E2020.slot_width-PRINT.fit_tolerance; // width of the bump for extrusion
+ var e_o=E2020.slot_width+PRINT.fit_tolerance; // opening for the T-Nut width
+ var rv = CSG.cylinder({
+  start: [0,0,h0], end: [0,0,h0+CONFIG.bedholder.h],
+  radiusStart: CD.base.outer_inscription_r,
+  radiusEnd: CD.base.outer_inscription_r+CONFIG.bedholder.h/2,
+  resolution: 240
+ });
+ rv=rv.intersect(CSG.cube({
+  corner1: [-CONFIG.extrusion.w/2,-CD.base.inner_inscription_r,h0],
+  corner2: [ CONFIG.extrusion.w/2,-CD.base.mid_inscription_r*2,h0+2*CONFIG.bedholder.h]
+ }));
+
+ rv=rv.union(CSG.cube({ // bump to fix on extrusion
+  corner1: [-CONFIG.extrusion.w/2,-CD.base.mid_inscription_r-e_w/2,h0],
+  corner2: [ CONFIG.extrusion.w/2,-CD.base.mid_inscription_r+e_w/2,h0-e_h]
+ }).subtract(
+  CSG.cube({center:[0,0,0],radius:[(e_o+2*e_h)/(2*Math.sqrt(2)),e_w+2,(e_o+2*e_h)/(2*Math.sqrt(2))]})
+  .rotateY(45)
+  .translate([0,-CD.base.mid_inscription_r,h0-e_h])
+ ));
+
+ var ebolt_s = CONFIG.bedholder.bolt.l-CONFIG.extrusion.slotdepth+PRINT.play_tolerance*2;
+ 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({ // base screw head
+   start: [0,-CD.base.mid_inscription_r,h0+ebolt_s],
+   end: [0,-CD.base.mid_inscription_r,h0+CONFIG.bedholder.h+1],
+   radius: CONFIG.bedholder.bolt.head.d/2+PRINT.play_tolerance
+  })
+ ]);
+
+ var nuth=h0+CONFIG.bedholder.h*3/4;
+ rv=rv.subtract([
+  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/2+PRINT.slide_tolerance/2,CONFIG.bedholder.nut.h/2+PRINT.slide_tolerance/2]
+  })
+ ]);
+
+ rv.properties.P = new CSG.Connector([-CONFIG.extrusion.w/2,-CD.base.mid_inscription_r,h0+CONFIG.bedholder.h/2],
+  [1,0,0],[0,0,1]);
+ return rv.setColor(CONFIG.color.parts);
  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({ // patch up for bridging
   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({ // cut off excess
   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 = U.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,
  bedholder: bedholder,
  platform: function(params) { return U.P(EFFECTOR.effector()) },
  hinged: function(params) {
   // TODO: handle print mode
   var ms = microswitch();
   var e = EFFECTOR.effector();
   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);
   return U.P(hdhd[1]);