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
@@ -42,12 +42,18 @@ var CONFIG = {
  },
  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: {
@@ -761,12 +767,55 @@ 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();
@@ -800,13 +849,14 @@ var PARTS = {
   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));
@@ -868,23 +918,24 @@ function getParameterDefinitions() {
    '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'
  },{