smooth_r = 15;
-bolt_dia = 5 + 0.75;
+bolt_dia = 5;
bolt_flat = 10 + 1;
+nbolts = 2;
+
open_gap = 10;
hinge_unit = 10;
hinge_units = 4;
+bolt_gap = 1.0; // total, on both sides
+
// ---------- vhook ----------
vhook_th = 14;
+// ---------- cleat ----------
+
+cleat_frames = 10;
+cleat_curve_r = 200;
+cleat_horn_l = 60;
+cleat_horn_d_min = 8;
+cleat_horn_d_max = 10;
+
// ---------- hhook ----------
hhook_inside = 40;
hhook_th = 4;
hhook_l = 40;
-// ========== calculated ==========
+// ========== defaults ==========
+pin_head_th = th/2;
pin_dia = th;
+pin_hole_dia = pin_dia/2;
+pin_tail = pin_hole_dia + pin_head_th + hinge_z_gap*3;
+
+// ========== calculated ==========
+
+TAU = PI*2;
+
hole_dia = th + pin_gap;
+bolt_hole_r = (bolt_dia + bolt_gap)/2;
+
main_r = tube_dia/2 + th;
hinge_gap = pin_gap;
hinge_x = -0.5 * tube_dia - hinge_o_r;
bolt_x = 0.5 * tube_dia + th + bolt_flat * 0.5;
-max_x = bolt_x + max(0.5 + bolt_dia + th, 0.5 * bolt_flat/2);
+max_x = bolt_x + max(bolt_hole_r + th, 0.5 * bolt_flat/2);
flats_y = open_gap/2 + th;
pin_flatten = pin_dia/2 * (1 - cos(45));
+bolt_stride = total_z / nbolts;
+
// calculated - vhook
vhook_inside = 15;
linextr(0, hinge_unit) MainPlanA(flatten);
}
}
- for (dz=[-1,+1]) {
- translate([ bolt_x, 0, dz * total_z/4 ]) {
+ 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_dia/2, h= tube_dia);
+ 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 VHookPartA(){ ////toplevel
+module VHookA(){ ////toplevel
DummyA();
translate([0, vhook_ctr, 0]){
}
}
+// ---------- cleat ----------
+
+module CleatFrame(s) {
+ translate([0,0, cleat_curve_r])
+ rotate( s * cleat_horn_l / cleat_curve_r * 360/TAU * [0,1,0] )
+ translate([0,0, -cleat_curve_r])
+ rotate([0, 90, 0])
+ sphere(r= ( cleat_horn_d_min * s +
+ cleat_horn_d_max * (1-s) ) * 0.5);
+}
+
+
+module CleatHorn(){
+ for (si=[0 : cleat_frames-2]) {
+ s0 = si / (cleat_frames-1);
+ s1 = (si+1) / (cleat_frames-1);
+ hull(){
+ CleatFrame(s0);
+ CleatFrame(s1);
+ }
+ }
+}
+
+module VCleatA(){ ////toplevel
+// DummyA();
+
+ CleatHorn();
+}
+
// ---------- hhook ----------
module HHookHookPlan(){
difference(){
circle(r = hhook_outer_dia/2);
circle(r = hhook_inside/2);
- rectfromto([-hhook_outer_dia, -hhook_outer_dia],
+ 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]) {
+ for (x=[-0.1, hhook_l]) {
translate([x,0]) square(center=true, hhook_th);
}
}
}
}
+module HHookA(){ ////toplevel
+ DummyA();
+ linextr(min_z, max_z) {
+ HHookHookPlan();
+ }
+}
+
module HHookPlanDemo(){
MainPlanA();
HHookHookPlan();
// ---------- misc ----------
+module PinSitu(){ ////toplevel
+ difference(){
+ union(){
+ translate([0,0, -pin_head_th])
+ cylinder(r= pin_dia/2, h = total_z + pin_head_th + pin_tail);
+ mirror([0,0,1])
+ cylinder(r= hinge_o_r - pin_gap, h = pin_head_th);
+ }
+ translate([0,0, total_z + pin_tail/2])
+ rotate([0,90,0])
+ translate([0,0, -pin_dia])
+ cylinder(r= pin_hole_dia/2, h=pin_dia*2);
+ translate([pin_dia/2 * cos(45), -50, -pin_head_th*2])
+ cube([50,100, total_z*2]);
+ }
+}
+
+module Pin(){ ////toplevel
+ rotate([0,90,0]) {
+ PinSitu();
+ }
+}
+
module GeneralB(){ ////toplevel
HalfClampX(true);
}
// translate([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();
}
+module DemoA(){ DummyA(); }
+
module Demo(){ ////toplevel
color("red") rotate([180,0,0]) GeneralB();
- color("blue") DummyA();
+ color("blue") DemoA();
+ color("orange") translate([hinge_x, 0, min_z - hinge_z_gap])
+ rotate([0,0,180]) PinSitu();
}
//PlanDemo();