X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=scaffold-clamp-common.scad;h=51f0d8ce422679a84a25c51bd98b912eefb59c11;hb=0f68fb954dddaf11e5bf3ea473b345f60d7e37a4;hp=73a5500ad7cf06cb14f0b74321c047efa0d51d7a;hpb=cbb0e4d6d3271817b28dbfcc8a7b27a61ffbbbb2;p=reprap-play.git

diff --git a/scaffold-clamp-common.scad b/scaffold-clamp-common.scad
index 73a5500..51f0d8c 100644
--- a/scaffold-clamp-common.scad
+++ b/scaffold-clamp-common.scad
@@ -18,7 +18,18 @@ open_gap = 10;
 hinge_unit = 10;
 hinge_z_gap = 1;
 
-// calculated
+hinge_units = 4;
+
+// ---------- vhook ----------
+
+vhook_th = 14;
+
+// ---------- hhook ----------
+
+hhook_inner = 40;
+hhook_th = 4;
+
+// ========== calculated ==========
 
 pin_dia = th;
 hole_dia = th + pin_gap;
@@ -43,6 +54,17 @@ max_z = +total_z/2;
 
 pin_flatten = pin_dia/2 * (1 - cos(45));
 
+// calculated - vhook
+
+vhook_inside = 15;
+
+vhook_theta = atan2( smooth_r, main_r );
+
+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;
+
+
 $fa = 3;
 $fs = 0.1;
 
@@ -133,18 +155,74 @@ module HalfClampX(flatten=false){
   }
 }
 
-module GeneralPlanDemo(){ ////toplevel
-  MainPlan();
-  translate([0,0,-4]) color("red") Portion(1);
-  translate([0,0,-2]) color("grey") Portion(0);
+// ---------- vhook ----------
 
-  translate([0, tube_dia*1.5]) {
-    MainPlanB();
-    MainPlanA();
+module VHookProfile() {
+  translate([0, -vhook_inside/2 - vhook_th/2])
+    circle(r = vhook_th/2);
+}
+
+module VHookHookMain(outer=false){ ////toplevel
+  rotate([0,90,0])
+    rotate_extrude(convexity=10)
+    rotate([0,0,90])
+    hull(){
+      VHookProfile();
+      if (outer) {
+	translate([0,-vhook_outer_dia]) square(center=true, vhook_th);
+      }
+    }
+}
+
+module VHookPartA(){ ////toplevel
+  DummyA();
+
+  translate([0, vhook_ctr, 0]){
+    for (m=[0,1]) {
+      mirror([0, m, 0]) {
+	linextr(-0.1, vhook_outer_dia/2)
+	  VHookProfile();
+	translate([0, -vhook_inside/2 -vhook_th/2, vhook_outer_dia/2])
+	  sphere(r= vhook_th/2);
+      }
+    }
+
+    intersection(){
+      VHookHookMain(outer=true);
+      linextr_y_xz(0, vhook_outer_dia/2) hull(){
+	VHookProfile();
+	translate([0,-0.1]) square(center=true, [vhook_th, 0.2]);
+      }
+    }
+
+    intersection(){
+      VHookHookMain();
+      translate([0,0, -vhook_outer_dia])
+	cube(center=true, vhook_outer_dia*2);
+    }
   }
-//  translate([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();
+
+  //translate([0, vhook_y0, 50]) rotate([0,0,-90]) color("black") cube(10);
+  // translate([0,0,-150]) rotate([0,0,180 + theta]) color("blue") cube(100);
 }
 
+module VHookPlanDemo(){
+  MainPlanA();
+  translate([0, vhook_ctr, 5])
+    for (m=[0,1]) {
+      mirror([0,m])
+	color("blue") VHookProfile();
+    }
+}
+
+// ---------- hhook ----------
+
+module HHookPlanDemo(){
+  MainPlanA();
+}
+
+// ---------- misc ----------
+
 module GeneralB(){ ////toplevel
   HalfClampX(true);
 }
@@ -153,6 +231,25 @@ module DummyA(){ ////toplevel
   HalfClampX();
 }
 
+module PlanDemo(){ ////toplevel
+  MainPlan();
+  translate([0,0,-4]) color("red") Portion(1);
+  translate([0,0,-2]) color("grey") Portion(0);
+
+  translate([0, tube_dia*1.5]) {
+    MainPlanB();
+    MainPlanA();
+  }
+
+  translate([0, -tube_dia*1.5]) {
+    VHookPlanDemo();
+  }
+  translate([tube_dia*4, 0]) {
+    HHookPlanDemo();
+  }
+//  translate([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();
+}
+
 module Demo(){ ////toplevel
   color("red") rotate([180,0,0]) GeneralB();
   color("blue") DummyA();