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 + 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;
45 offset(r=-smooth_r) offset(delta=smooth_r)
47 translate([hinge_x, 0]) circle(r= hinge_o_r);
48 circle(r = tube_dia/2 + th);
49 rectfromto([0, -flats_y],
52 circle(r = tube_dia/2);
53 rectfromto([0, -open_gap/2],
54 [max_x+1, +open_gap/2]);
55 translate([hinge_x, 0]) circle(r= hole_dia/2);
60 translate([hinge_x, 0]) circle(r= hinge_o_r + d);
61 rectfromto([hinge_x*2, 0],
62 [max_x+10, -(tube_dia/2+th+10)]);
79 module HalfClamp(){ ////toplevel
80 linextr(0, total_z) mirror([0,1]) MainPlanB();
81 for (i=[0 : hinge_units-1]) {
82 translate([0,0, stride_z*i])
83 linextr(0, hinge_unit) MainPlanA();
87 module PlanDemo(){ ////toplevel
89 translate([0,0,-4]) color("red") Portion(1);
90 translate([0,0,-2]) color("grey") Portion(0);
92 translate([0, tube_dia*1.5]) {
96 // translate([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();