scaffold-clamp: Break out HalfClampXPositive, Negatiuve

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

diff --git a/scaffold-clamp-common.scad b/scaffold-clamp-common.scad
index c309c004d9568a16264bc29fc91f4a0a2327ec50..02a4bbe5e73ff656afd2e47a967c7aa2ee7a7b2d 100644 (file)
--- a/scaffold-clamp-common.scad
+++ b/scaffold-clamp-common.scad
@@ -38,6 +38,8 @@ cleat_horn_d_max = [12, 14];
 cleat_height = 25;
 cleat_stem_l = 20;
 
+cleat_overlap = (1-cos(60));
+
 // ---------- hhook ----------
 
 hhook_inside = 40;
@@ -95,6 +97,13 @@ vhook_outer_dia = vhook_inside + vhook_th*2;
 
 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;
@@ -170,28 +179,36 @@ module MainPlanB(flatten){
   }
 }
 
-module HalfClampX(flatten=false){
-  difference(){
-    translate([0,0, min_z]) {
-      linextr(0, total_z) mirror([0,1]) MainPlanB();
-      for (i=[0 : hinge_units-1]) {
-       translate([0,0, stride_z*i])
-         linextr(0, hinge_unit) MainPlanA(flatten);
-      }
+module HalfClampXPositive(flatten=false){
+  translate([0,0, min_z]) {
+    linextr(0, total_z) mirror([0,1]) MainPlanB();
+    for (i=[0 : hinge_units-1]) {
+      translate([0,0, stride_z*i])
+       linextr(0, hinge_unit) MainPlanA(flatten);
     }
-    for (j=[0:nbolts-1]) {
-      translate([ bolt_x, 0, min_z + (j + 0.5) * bolt_stride ]) {
-       translate([0, -tube_dia/2, 0])
-         rotate([-90,0,0])
-         cylinder(r= bolt_hole_r, h= tube_dia);
-       translate([0, -flats_y, 0])
-         rotate([90,0,0])
-         cylinder(r= bolt_flat/2, h= tube_dia/2);
-      }
+  }
+}
+
+module HalfClampXNegative(){
+  for (j=[0:nbolts-1]) {
+    translate([ bolt_x, 0, min_z + (j + 0.5) * bolt_stride ]) {
+      translate([0, -tube_dia/2, 0])
+       rotate([-90,0,0])
+       cylinder(r= bolt_hole_r, h= tube_dia);
+      translate([0, -flats_y, 0])
+       rotate([90,0,0])
+       cylinder(r= bolt_flat/2, h= tube_dia/2);
     }
   }
 }
 
+module HalfClampX(flatten=false){
+  difference(){
+    HalfClampXPositive(flatten);
+    HalfClampXNegative();
+  }
+}
+
 // ---------- vhook ----------
 
 module VHookProfile() {
@@ -302,21 +319,36 @@ module CleatBase(){
   }
 }
 
-module VCleatA(){ ////toplevel
-  %DummyA();
-
-  translate([0, -(main_r + cleat_height), 0]) {
-    rotate([0, -90, 90]) {
-      CleatBase();
-      for (m=[0,1]) {
-       mirror([m,0,0]) {
-         CleatHorn();
+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(){
@@ -349,6 +381,14 @@ module HHookPlanDemo(){
   HHookHookPlan();
 }
 
+// ---------- linear bracket ----------
+
+module LinearBracketA(){ ////toplevel
+  DummyA();
+
+
+}
+
 // ---------- misc ----------
 
 module PinSitu(){ ////toplevel
@@ -410,5 +450,12 @@ 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();