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
@@ -36,24 +36,30 @@ var CONFIG = {
   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
@@ -755,24 +761,67 @@ function glass() {
  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) {
@@ -794,25 +843,26 @@ var PARTS = {
   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();
@@ -862,35 +912,36 @@ function P(x) {
 
 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
  }];
 }