open_gap = 10;
hinge_unit = 10;
-uhinge_z_gap = 1;
+hinge_z_gap = 1;
+
+hinge_units = 4;
+
+// vhook
+
+vhook_th = 10;
+
// calculated
pin_dia = th;
hole_dia = th + pin_gap;
+main_r = tube_dia/2 + th;
+
hinge_gap = pin_gap;
hinge_o_r = 0.5 * hole_dia + th;
pin_flatten = pin_dia/2 * (1 - cos(45));
+// calculated - vhook
+
+vhook_inside = 15;
+
+vhook_theta = atan2( smooth_r, main_r );
+
+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;
+
+
$fa = 3;
$fs = 0.1;
}
module TubePlan(){ circle(r = tube_dia/2); }
-module MainCirclePlan(){ circle(r = tube_dia/2 + th); }
+module MainCirclePlan(){ circle(r = main_r); }
module PlanWeldMainCircle(){
intersection(){
}
}
-module GeneralPlanDemo(){ ////toplevel
+module PlanDemo(){ ////toplevel
MainPlan();
translate([0,0,-4]) color("red") Portion(1);
translate([0,0,-2]) color("grey") Portion(0);
MainPlanB();
MainPlanA();
}
+
+ translate([0, -tube_dia*1.5]) {
+ VHookPlanDemo();
+ }
// translate([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();
}
+// ---------- vhook ----------
+
+module VHookProfile() {
+ translate([0, -vhook_inside/2 - vhook_th/2])
+ circle(r = vhook_th/2);
+}
+
+module VHookHookMain(){ ////toplevel
+ rotate([0,90,0])
+ rotate_extrude(convexity=10)
+ rotate([0,0,90])
+ VHookProfile();
+}
+
+module VHookPartA(){ ////toplevel
+ DummyA();
+
+ translate([0, vhook_ctr, min_z + vhook_outer_dia/2]){
+ for (m=[0,1]) {
+ mirror([0, m, 0]) {
+ linextr(-0.1, vhook_outer_dia/2)
+ VHookProfile();
+ translate([0, -vhook_inside/2 -vhook_th/2, vhook_outer_dia/2])
+ sphere(r= vhook_th/2);
+ }
+ }
+
+ intersection(){
+ VHookHookMain();
+ translate([0,0, -vhook_outer_dia])
+ cube(center=true, vhook_outer_dia*2);
+ }
+ }
+
+ //translate([0, vhook_y0, 50]) rotate([0,0,-90]) color("black") cube(10);
+ // translate([0,0,-150]) rotate([0,0,180 + theta]) color("blue") cube(100);
+}
+
+module VHookPlanDemo(){
+ VHookPlan();
+ translate([0, vhook_ctr, 5])
+ for (m=[0,1]) {
+ mirror([0,m])
+ color("blue") VHookProfile();
+ }
+}
+
+// ---------- misc ----------
+
module GeneralB(){ ////toplevel
HalfClampX(true);
}