fairphone4-case: hinge with wire pins

[reprap-play.git] / scaffold-clamp-common.scad

diff --git a/scaffold-clamp-common.scad b/scaffold-clamp-common.scad
index 77f138846f825443f644d6901244ff33595157ec..4e9f36759e267902306214f23f3b5aca9536a674 100644 (file)
--- a/scaffold-clamp-common.scad
+++ b/scaffold-clamp-common.scad
@@ -32,12 +32,14 @@ vhook_th = 14;
 
 cleat_frames = 10;
 cleat_curve_r = 200;
-cleat_horn_l = 60;
-cleat_horn_d_min = [8, 10];
-cleat_horn_d_max = [10, 12];
+cleat_horn_l = 40;
+cleat_horn_d_min = [10, 12];
+cleat_horn_d_max = [12, 14];
 cleat_height = 25;
 cleat_stem_l = 20;
 
+cleat_overlap = (1-cos(60));
+
 // ---------- hhook ----------
 
 hhook_inside = 40;
@@ -91,6 +93,17 @@ vhook_y0 = -max(main_r, (tube_dia/2 + vhook_th));
 vhook_ctr = vhook_y0 - vhook_inside/2;
 vhook_outer_dia = vhook_inside + vhook_th*2;
 
+// calculated - cleat
+
+cleat_horn_tl = cleat_horn_l + cleat_stem_l/2;
+
+vcleat_dz = max(0,
+               cleat_horn_tl
+               + cleat_horn_d_min[0]/2
+               - cleat_horn_d_min[0]/2 * cleat_overlap
+               - total_z/2
+               );
+
 // calculated - hhook
 
 hhook_outer_dia = hhook_inside + hhook_th*2;
@@ -250,7 +263,7 @@ module VHookPlanDemo(){
 
 // ---------- cleat ----------
 
-function cleat_frame_theta(s) = s * cleat_horn_l / cleat_curve_r * 360/TAU;
+function cleat_frame_theta(s) = s * cleat_horn_tl / cleat_curve_r * 360/TAU;
 function cleat_frame_z(s) = cleat_curve_r * (1 - cos(cleat_frame_theta(s)));
 function cleat_frame_x(s) = cleat_curve_r * sin(cleat_frame_theta(s));
 function cleat_frame_r(s) = ( cleat_horn_d_min * s +
@@ -273,57 +286,61 @@ module CleatHorn(){
   for (si=[0 : cleat_frames-2]) {
     s0 = si / (cleat_frames-1);
     s1 = (si+1) / (cleat_frames-1);
-    //hull(){
+    hull(){
       CleatFrame(s0);
       CleatFrame(s1);
-    //}
+    }
   }
 }
 
 module CleatBase(){
   frames = cleat_frames/2;
-  se = cleat_stem_l/2 / cleat_horn_l;
+  se = cleat_stem_l/2 / cleat_horn_tl;
   r = cleat_frame_r(se);
 
-  for (si=[0: frames-2]) {
-    s0 = se * si / (frames-1);
-    s1 = se * (si+1) / (frames-1);
-    hull(){
+  hull(){
+    for (s = [-se, se]) {
       for (z= [-(cleat_height + tube_dia/2),
-              cleat_frame_z(se)]) {
-       translate([cleat_frame_x(se), 0, z])
-         CleatFrameSphere(r);
+              cleat_frame_z(s)]) {
+       translate([cleat_frame_x(s), 0, z])
+         linear_extrude(height=0.1)
+         scale([1, r[1]/r[0]])
+         circle(r=r[0]);
       }
     }
   }
-
-  for (si=[0 : cleat_frames-2]) {
-    s0 = si / (cleat_frames-1);
-    s1 = (si+1) / (cleat_frames-1);
-    //hull(){
-      CleatFrame(s0);
-      CleatFrame(s1);
-    //}
-  }
 }
 
-module VCleatA(){ ////toplevel
-  %DummyA();
-
-  translate([0, -(main_r + cleat_height), 0]) {
-    rotate([0, -90, 90]) {
-      for (m=[0,1]) {
-       mirror([m,0,0]) {
-         CleatHorn();
-       }
-       mirror([m,0,0]) {
-         CleatBase();
+module VCleat(){
+  intersection(){
+    translate([0,0, vcleat_dz]){
+      difference(){
+       translate([0, -(main_r + cleat_height), 0]) {
+         rotate([0, -90, 90]) {
+           CleatBase();
+           for (m=[0,1]) {
+             mirror([m,0,0]) {
+               CleatHorn();
+             }
+           }
+         }
        }
+       linextr(-cleat_stem_l, +cleat_stem_l)
+         circle(r = tube_dia/2 + 0.1);
       }
     }
+      translate([0,0, total_z * 0.5])
+       cube(center=true,
+            (main_r + cleat_stem_l)*4 * [1,1,0] +
+            total_z * [0,0,2]);
   }
 }
 
+module VCleatA(){ ////toplevel
+  DummyA();
+  VCleat();
+}
+
 // ---------- hhook ----------
 
 module HHookHookPlan(){
@@ -417,5 +434,12 @@ module Demo(){ ////toplevel
     rotate([0,0,180]) PinSitu();
 }
 
+module DemoPair(){ ////toplevel
+  color("red") rotate([180,0,0]) DemoA();
+  color("blue") DemoA();
+  color("orange") translate([hinge_x, 0, min_z - hinge_z_gap])
+    rotate([0,0,180]) PinSitu();
+}
+
 //PlanDemo();
 //HalfClamp();