9 pin_gap = 1.5; // around
25 hole_dia = th + pin_gap;
29 hinge_o_r = 0.5 * hole_dia + th;
31 hinge_x = -0.5 * tube_dia - hinge_o_r;
32 bolt_x = 0.5 * tube_dia + th + bolt_flat * 0.5;
33 max_x = bolt_x + max(0.5 + bolt_dia + th, 0.5 * bolt_flat/2);
35 flats_y = open_gap/2 + th;
37 stride_z = hinge_unit*2 + hinge_z_gap*2;
38 total_z = hinge_units * stride_z - hinge_z_gap;
43 pin_flatten = pin_dia/2 * (1 - cos(45));
49 offset(r=-smooth_r) offset(delta=smooth_r) children(0);
52 module TubePlan(){ circle(r = tube_dia/2); }
53 module MainCirclePlan(){ circle(r = tube_dia/2 + th); }
55 module PlanWeldMainCircle(){
66 rotate(-135) square(100);
70 module MainPlan(flatten=false) {
74 translate([hinge_x, 0]) circle(r= hinge_o_r);
76 rectfromto([0, -flats_y],
80 rectfromto([0, -open_gap/2],
81 [max_x+1, +open_gap/2]);
82 translate([hinge_x, 0]) {
84 circle(r= hole_dia/2);
86 translate([ pin_flatten, 0 ])
87 square(center=true, [hole_dia, hole_dia + 1]);
94 translate([hinge_x, 0]) circle(r= hinge_o_r + d);
95 rectfromto([hinge_x*2, 0],
96 [max_x+10, -(tube_dia/2+th+10)]);
99 module MainPlanA(flatten){
106 module MainPlanB(flatten){
114 PlanWeldMainCircle(){
115 rectfromto([ -5, 0 ],
120 module HalfClampX(flatten=false){
122 translate([0,0, min_z]) {
123 linextr(0, total_z) mirror([0,1]) MainPlanB();
124 for (i=[0 : hinge_units-1]) {
125 translate([0,0, stride_z*i])
126 linextr(0, hinge_unit) MainPlanA(flatten);
130 translate([ bolt_x, 0, dz * total_z/4 ]) {
131 translate([0, -tube_dia/2, 0])
133 cylinder(r= bolt_dia/2, h= tube_dia);
134 translate([0, -flats_y, 0])
136 cylinder(r= bolt_flat/2, h= tube_dia/2);
142 module PlanDemo(){ ////toplevel
144 translate([0,0,-4]) color("red") Portion(1);
145 translate([0,0,-2]) color("grey") Portion(0);
147 translate([0, tube_dia*1.5]) {
152 translate([0, -tube_dia*1.5]) {
155 // translate([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();
158 module GeneralB(){ ////toplevel
162 module DummyA(){ ////toplevel
166 module VHookA(){ ////toplevel
168 linextr(min_z, max_z)
172 module Demo(){ ////toplevel
173 color("red") rotate([180,0,0]) GeneralB();
174 color("blue") DummyA();