X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=scaffold-clamp-common.scad;h=9c9a831b3d6c3c4903afb89ba3b74afb12b84894;hb=eb06f06509cc2403d8592cd147d89d9a1b8bb97f;hp=3207b5e208a23f6a662c8da94bc658991818a3e1;hpb=0bb75071782fbce522c31e6d0a384f40ac379dfb;p=reprap-play.git

diff --git a/scaffold-clamp-common.scad b/scaffold-clamp-common.scad
index 3207b5e..9c9a831 100644
--- a/scaffold-clamp-common.scad
+++ b/scaffold-clamp-common.scad
@@ -20,12 +20,17 @@ hinge_z_gap = 1;
 
 hinge_units = 4;
 
-// vhook
+// ---------- vhook ----------
+
+vhook_th = 14;
 
-vhook_th = 10;
+// ---------- hhook ----------
 
+hhook_inside = 40;
+hhook_th = 4;
+hhook_l = 40;
 
-// calculated
+// ========== calculated ==========
 
 pin_dia = th;
 hole_dia = th + pin_gap;
@@ -60,6 +65,12 @@ 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 - hhook
+
+hhook_outer_dia = hhook_inside + hhook_th*2;
+
+hhook_ctr = -max(main_r + hhook_inside/2,
+		 tube_dia/2 + hhook_outer_dia/2);
 
 $fa = 3;
 $fs = 0.1;
@@ -151,22 +162,6 @@ module HalfClampX(flatten=false){
   }
 }
 
-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([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();
-}
-
 // ---------- vhook ----------
 
 module VHookProfile() {
@@ -189,7 +184,7 @@ module VHookHookMain(outer=false){ ////toplevel
 module VHookPartA(){ ////toplevel
   DummyA();
 
-  translate([0, vhook_ctr, min_z + vhook_outer_dia/2]){
+  translate([0, vhook_ctr, 0]){
     for (m=[0,1]) {
       mirror([0, m, 0]) {
 	linextr(-0.1, vhook_outer_dia/2)
@@ -219,7 +214,7 @@ module VHookPartA(){ ////toplevel
 }
 
 module VHookPlanDemo(){
-  VHookPlan();
+  MainPlanA();
   translate([0, vhook_ctr, 5])
     for (m=[0,1]) {
       mirror([0,m])
@@ -227,6 +222,38 @@ module VHookPlanDemo(){
     }
 }
 
+// ---------- hhook ----------
+
+module HHookHookPlan(){
+  translate([0, hhook_ctr]){
+    difference(){
+      circle(r = hhook_outer_dia/2);
+      circle(r = hhook_inside/2);
+      rectfromto([+hhook_outer_dia, -hhook_outer_dia],
+		 [0,                +hhook_outer_dia]);
+    }
+    translate([0, -(hhook_inside/2 + hhook_th/2)]){
+      hull(){
+	for (x=[-0.1, hhook_l]) {
+	  translate([x,0]) square(center=true, hhook_th);
+	}
+      }
+    }
+  }
+}
+
+module HHookPartA(){ ////toplevel
+  DummyA();
+  linextr(min_z, max_z) {
+    HHookHookPlan();
+  }
+}
+
+module HHookPlanDemo(){
+  MainPlanA();
+  HHookHookPlan();
+}
+
 // ---------- misc ----------
 
 module GeneralB(){ ////toplevel
@@ -237,6 +264,25 @@ 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();