chiark / gitweb /
poster-tube-lid: catch: adjust stalk height from v1
[reprap-play.git] / crossbar-computer-led-mount.scad
index b86b4b9..535c680 100644 (file)
@@ -3,21 +3,56 @@
 led_dia = 5 + 0.6;
 led_depth = 5;
 
 led_dia = 5 + 0.6;
 led_depth = 5;
 
-led_tip_z = 70;
+led_tip_height_above_crossbar = 70;
 led_angle = -60;
 led_angle = -60;
+crossbar_dia = 25; // fixme
 
 vert_space_inside = 8;
 backfront_space_inside = 12;
 
 vert_space_inside = 8;
 backfront_space_inside = 12;
+width_space_inside = 10;
 
 backfront_mate_size = 25;
 
 backfront_mate_size = 25;
-tower_frontheight = 20;
+tower_frontheight = 10;
+tower_base_height = 20;
+tower_slot_width = 3;
+
+cableclamp_ctie_width = 4.0 + 1.0;
+cableclamp_ctie_thick = 2.5 + 0.5;
+
+lidclamp_ctie_width = 4.0 + 1.0;
+lidclamp_ctie_thick = 2.5 + 0.5;
+
+base_ctie_width = 4.0 + 1.0;
+base_ctie_thick = 2.5 + 0.5;
+
+tube_ctie_width = 4.0 + 1.0;
+tube_ctie_thick = 2.5 + 0.5;
 
 // tuning
 
 tower_over_angle = 45;
 tower_wall_thick = 1.6;
 
 // tuning
 
 tower_over_angle = 45;
 tower_wall_thick = 1.6;
-tower_base_height = 10;
 tower_forehead_angle = 30;
 tower_forehead_angle = 30;
+lid_wall_thick = 1.6;
+lid_slop = 0.75;
+//cableclamp_ctie_anchor = 5;
+lidclamp_cableclamp_ctie_between = 0;
+base_ctie_anchor = 5;
+tube_ctie_anchor = 5;
+protrusion_size = 2;
+protrusion_none_frontback = 10;
+protrusion_slop = 0.25;
+cableclamp_ctie_z = tower_frontheight/2;
+
+towerleg_backfront = 5;
+towerleg_width = 3;
+towerleg_foot_gap = 2;
+towerleg_foot_backfront = 20;
+towerleg_foot_width = 40;
+towerleg_foot_height = 10;
+towerleg_yslope = 0.7;
+towerleg_xslope = 0.3;
+echo(sqrt(towerleg_yslope*towerleg_yslope+towerleg_xslope*towerleg_xslope));
 
 //--- tests ---
 
 
 //--- tests ---
 
@@ -45,15 +80,32 @@ module Tests(){ ////toplevel
 
 //--- real thing ---
 
 
 //--- real thing ---
 
+// calculated
+
 tower_overhang = led_dia * 2.5;
 tower_overhang = led_dia * 2.5;
+tower_width = width_space_inside + tower_wall_thick*2;
 
 tower_over_max_y = tower_overhang * sin(tower_over_angle);
 tower_over_max_z = tower_frontheight + tower_overhang * cos(tower_over_angle);
 tower_total_max_z = tower_over_max_z + vert_space_inside + led_depth;
 tower_rearwall_y = -(backfront_space_inside + tower_wall_thick);
 
 tower_over_max_y = tower_overhang * sin(tower_over_angle);
 tower_over_max_z = tower_frontheight + tower_overhang * cos(tower_over_angle);
 tower_total_max_z = tower_over_max_z + vert_space_inside + led_depth;
 tower_rearwall_y = -(backfront_space_inside + tower_wall_thick);
-
+led_head_y = tower_over_max_y/2;
+led_head_z = tower_frontheight + tower_overhang*sin(tower_over_angle)/2;
 backfront_mate_extra = (backfront_mate_size - (-tower_rearwall_y));
 
 backfront_mate_extra = (backfront_mate_size - (-tower_rearwall_y));
 
+tower_height_contribution = led_head_z + tower_base_height;
+
+base_ctie_anchor_eff = base_ctie_anchor+base_ctie_thick/2;
+tube_ctie_anchor_eff = tube_ctie_anchor+tube_ctie_thick/2;
+
+base_width = 0.7 * crossbar_dia;
+base_backfront = backfront_mate_extra - tower_rearwall_y;
+base_height = led_tip_height_above_crossbar - tower_height_contribution;
+
+protrusion_frontback = base_backfront - protrusion_none_frontback;
+
+echo(tower_height_contribution, base_height);
+
 module TowerWallCrossSection(){
   // generates a 2D shape - a polygon
   // x is what is going to be -y
 module TowerWallCrossSection(){
   // generates a 2D shape - a polygon
   // x is what is going to be -y
@@ -67,7 +119,8 @@ module TowerWallCrossSection(){
           [-tower_rearwall_y,  tower_total_max_z],
           [-tower_rearwall_y,  0],
           [-tower_rearwall_y, -tower_base_height],
           [-tower_rearwall_y,  tower_total_max_z],
           [-tower_rearwall_y,  0],
           [-tower_rearwall_y, -tower_base_height],
-          [-backfront_mate_extra, -tower_base_height]]);
+          [-backfront_mate_extra, -tower_base_height]],
+         convexity=5);
 }
 
 module TowerWallSomeEdge(front){
 }
 
 module TowerWallSomeEdge(front){
@@ -85,8 +138,7 @@ module TowerBulkCrossSection(){
   intersection(){
     TowerWallCrossSection();
     union(){
   intersection(){
     TowerWallCrossSection();
     union(){
-      translate([-tower_over_max_y/2,
-                tower_frontheight + tower_overhang*sin(tower_over_angle)/2])
+      translate([-led_head_y, led_head_z])
        circle(r = led_depth);
       TowerWallSomeEdge(true);
       translate([-50, -50])
        circle(r = led_depth);
       TowerWallSomeEdge(true);
       translate([-50, -50])
@@ -100,7 +152,7 @@ module TowerRearWallCrossSection(){
     TowerWallCrossSection();
     union(){
       intersection(){
     TowerWallCrossSection();
     union(){
       intersection(){
-       translate([0,-10]) square([100, 10+tower_frontheight]);
+       translate([0,-10]) square([100, 10+led_head_z]);
        TowerWallSomeEdge(false);
       }
       TowerBulkCrossSection();
        TowerWallSomeEdge(false);
       }
       TowerBulkCrossSection();
@@ -108,12 +160,181 @@ module TowerRearWallCrossSection(){
   }
 }
 
   }
 }
 
-module TowerDemo(){
+
+module TowerCrossSectionDemo(){
   %TowerWallCrossSection();
   //TowerBulkCrossSection();
   TowerRearWallCrossSection();
 }
 
   %TowerWallCrossSection();
   //TowerBulkCrossSection();
   TowerRearWallCrossSection();
 }
 
-TowerDemo();
+module TowerMain(){
+  for (mir=[0,1])
+    mirror([mir,0,0]) rotate([90,0,-90]) {
+      translate([0,0, tower_width/2-tower_wall_thick])
+       linear_extrude(height=tower_wall_thick) {
+       TowerWallCrossSection();
+      }
+      translate([0,0,-1])
+       linear_extrude(height=tower_width/2+0.9)
+       union(){
+         TowerBulkCrossSection();
+         hull(){
+           intersection(){
+             TowerWallCrossSection();
+             translate([-30, -30])
+               square([30 + 0.1, 30 + tower_frontheight]);
+           }
+         }
+        }
+      translate([0,0, tower_slot_width/2])
+       linear_extrude(height=(tower_width - tower_slot_width)/2 - 0.2)
+       TowerRearWallCrossSection();
+    }
+}
+
+module LedHole(){
+  translate([0, led_head_y, led_head_z])
+    rotate([90 + led_angle, 0, 0])
+    translate([0,0,-10])
+    cylinder(r=led_dia/2, h=led_depth+1+10, $fn=26, $fa=10);
+}
+
+module TowerProper(){
+  difference(){
+    TowerMain();
+    LedHole();
+    // passages for cable ties
+    translate([0,
+              tower_rearwall_y/2,
+              cableclamp_ctie_z
+              + cableclamp_ctie_width/2 + lidclamp_ctie_thick/2
+              + lidclamp_cableclamp_ctie_between])
+      cube([50, lidclamp_ctie_width, lidclamp_ctie_thick], center=true);
+    translate([0,
+               (backfront_mate_extra+tower_rearwall_y)/2,
+               -tower_base_height
+              + max(protrusion_size + protrusion_slop + 0.1,
+                    base_ctie_anchor_eff)])
+      cube([50, base_ctie_width, base_ctie_thick], center=true);
+//    for (extra_y=[0, -(cableclamp_ctie_thick + cableclamp_ctie_anchor)]) {
+//      translate([-tower_width/2,
+//              -cableclamp_ctie_thick/2 - tower_wall_thick + extra_y,
+//              cableclamp_ctie_z])
+//     cube([tower_wall_thick+2,
+//           cableclamp_ctie_thick,
+//           cableclamp_ctie_width], center=true);
+//    }
+    for (mir=[0,1])
+     mirror([mir,0,0]) {
+       translate([tower_width/4, 20, cableclamp_ctie_z])
+         cube([cableclamp_ctie_thick,
+               tower_wall_thick*2+1+40,
+               cableclamp_ctie_width],
+              center=true);
+      }
+    translate([0, tower_rearwall_y, -tower_base_height])
+      BaseRegistrationProtrusion(protrusion_slop);
+  }
+}
+
+module Tower(){ ////toplevel
+  TowerProper();
+  for (mir=[0,1]) {
+    mirror([mir,0,0]){
+      translate([0,
+                tower_rearwall_y + 0.1,
+                -1])
+       mirror([0,0,1])
+       multmatrix([[1,0, towerleg_xslope,0],
+                   [0,1,-towerleg_yslope,0],
+                   [0,0,1,0],
+                   [0,0,0,1]])
+       cube([towerleg_width, towerleg_backfront, tower_base_height-2]);
+    }
+  }
+  translate([-towerleg_foot_width/2,
+            tower_rearwall_y - towerleg_foot_gap,
+            -tower_base_height])
+    mirror([0,1,0])
+    cube([towerleg_foot_width, towerleg_foot_backfront, towerleg_foot_height]);
+}
+
+module TowerMainHull(){
+  hull(){ TowerMain(); }
+}
+
+module Lid(){
+  intersection(){
+    difference(){
+      minkowski(){
+       TowerMainHull();
+       sphere(r=lid_wall_thick+lid_slop, $fn=8);
+      }
+      minkowski(){
+       TowerMainHull();
+       sphere(r=lid_slop, $fn=6);
+      }
+    }
+    translate([-50,-50,led_head_z]) cube([100,100,100]);
+  }
+}
+
+module LidT(){ ////toplevel
+  rotate([180,0,0]) Lid();
+}
+
+module BaseRegistrationProtrusion(extra){
+  size = protrusion_size + extra;
+  translate([0, base_backfront/2, 0]){
+    hull(){
+      translate([0,0, -0.5])
+       cube([protrusion_size*2, protrusion_frontback, 1.0], center=true);
+      translate([0, 0, protrusion_size-0.5])
+       cube([0.05, protrusion_frontback-protrusion_size*2, 1.0], center=true);
+    }
+  }
+}
+
+module Base(){
+  difference(){
+    mirror([0,0,1]){
+      hull(){
+       translate([-tower_width/2, 0, 0])
+         cube([tower_width, base_backfront, 0.1]);
+       translate([-base_width/2, 0, base_height])
+         cube([base_width, base_backfront, crossbar_dia/2]);
+      }
+    }
+    translate([0, base_backfront/2, -base_ctie_anchor_eff])
+      cube([100, base_ctie_width, base_ctie_thick], center=true);
+    translate([0, base_backfront/2, -base_height + tube_ctie_anchor_eff])
+      cube([100, tube_ctie_width, tube_ctie_thick], center=true);
+    translate([0, -1, -(base_height + crossbar_dia/2)])
+      rotate([-90,0,0])
+      cylinder(r=crossbar_dia/2, h=101);
+  }
+  BaseRegistrationProtrusion(0.0);
+}
+
+module BaseT(){ ////toplevel
+  rotate([90,0,0]) Base();
+}
+
+module Demo(){
+  Tower();
+  %Lid();
+  translate([0,0, 25]) Lid();
+  translate([0, tower_rearwall_y, -(tower_base_height+5)]) Base();
+}
+
+//TowerCrossSectionDemo();
 //TowerWallSomeEdge(false);
 //TowerWallFrontEdge();
 //TowerWallSomeEdge(false);
 //TowerWallFrontEdge();
+//TowerMainHull();
+//LidT();
+//Tower();
+//Lid();
+//BaseRegistrationProtrusion();
+//Base();
+//BaseT();
+//Demo();