smooth_r = 15;
-bolt_dia = 5 + 0.75;
+bolt_dia = 5;
bolt_flat = 10 + 1;
+nbolts = 2;
+
open_gap = 10;
hinge_unit = 10;
hinge_z_gap = 1;
-// calculated
+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 = 40;
+cleat_horn_d_min = [10, 12];
+cleat_horn_d_max = [12, 14];
+cleat_height = 25;
+cleat_stem_l = 20;
+
+cleat_overlap = (1-cos(60));
+
+// ---------- hhook ----------
+
+hhook_inside = 40;
+hhook_th = 4;
+hhook_l = 40;
+// ---------- linear bracket ----------
+
+linear_bracket_h = 50;
+linear_bracket_l = 100;
+linear_bracket_t = 15;
+linear_bracket_hole_offset = 20;
+linear_bracket_hole_dia = 5 + 1.00;
+
+// ========== 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_o_r = 0.5 * hole_dia + th;
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;
+
+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;
+
+// calculated - cleat
+
+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;
+
+hhook_ctr = -max(main_r + hhook_inside/2,
+ tube_dia/2 + hhook_outer_dia/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 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);
+ }
+ }
+}
+
+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(){
- 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);
+ HalfClampXPositive(flatten);
+ HalfClampXNegative();
+ }
+}
+
+// ---------- vhook ----------
+
+module VHookProfile() {
+ translate([0, -vhook_inside/2 - vhook_th/2])
+ circle(r = vhook_th/2);
+}
+
+module VHookHookMain(outer=false){ ////toplevel
+ rotate([0,90,0])
+ rotate_extrude(convexity=10)
+ rotate([0,0,90])
+ hull(){
+ VHookProfile();
+ if (outer) {
+ translate([0,-vhook_outer_dia]) square(center=true, vhook_th);
}
}
- for (dz=[-1,+1]) {
- translate([ bolt_x, 0, dz * total_z/4 ]) {
- translate([0, -tube_dia/2, 0])
- rotate([-90,0,0])
- cylinder(r= bolt_dia/2, h= tube_dia);
- translate([0, -flats_y, 0])
- rotate([90,0,0])
- cylinder(r= bolt_flat/2, h= tube_dia/2);
+}
+
+module VHookA(){ ////toplevel
+ DummyA();
+
+ translate([0, vhook_ctr, 0]){
+ 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(outer=true);
+ linextr_y_xz(0, vhook_outer_dia/2) hull(){
+ VHookProfile();
+ translate([0,-0.1]) square(center=true, [vhook_th, 0.2]);
}
}
+
+ 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 GeneralPlanDemo(){ ////toplevel
- MainPlan();
- translate([0,0,-4]) color("red") Portion(1);
- translate([0,0,-2]) color("grey") Portion(0);
+module VHookPlanDemo(){
+ MainPlanA();
+ translate([0, vhook_ctr, 5])
+ for (m=[0,1]) {
+ mirror([0,m])
+ color("blue") VHookProfile();
+ }
+}
- translate([0, tube_dia*1.5]) {
- MainPlanB();
- MainPlanA();
+// ---------- cleat ----------
+
+function cleat_frame_theta(s) = s * cleat_horn_tl / cleat_curve_r * 360/TAU;
+function cleat_frame_z(s) = cleat_curve_r * (1 - cos(cleat_frame_theta(s)));
+function cleat_frame_x(s) = cleat_curve_r * sin(cleat_frame_theta(s));
+function cleat_frame_r(s) = ( cleat_horn_d_min * s +
+ cleat_horn_d_max * (1-s) ) * 0.5;
+
+module CleatFrameSphere(r) {
+ scale([1, r[1]/r[0], 1])
+ sphere(r= r[0]);
+}
+
+module CleatFrame(s) {
+ r = cleat_frame_r(s);
+ translate([cleat_frame_x(s), 0, cleat_frame_z(s)])
+ rotate([0, 90, 0])
+ CleatFrameSphere(r);
+}
+
+
+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 CleatBase(){
+ frames = cleat_frames/2;
+ se = cleat_stem_l/2 / cleat_horn_tl;
+ r = cleat_frame_r(se);
+
+ hull(){
+ for (s = [-se, se]) {
+ for (z= [-(cleat_height + tube_dia/2),
+ cleat_frame_z(s)]) {
+ translate([cleat_frame_x(s), 0, z])
+ linear_extrude(height=0.1)
+ scale([1, r[1]/r[0]])
+ circle(r=r[0]);
+ }
+ }
+ }
+}
+
+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(){
+ translate([0, hhook_ctr]){
+ difference(){
+ circle(r = hhook_outer_dia/2);
+ circle(r = hhook_inside/2);
+ 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]) {
+ translate([x,0]) square(center=true, hhook_th);
+ }
+ }
+ }
+ }
+}
+
+module HHookA(){ ////toplevel
+ DummyA();
+ linextr(min_z, max_z) {
+ HHookHookPlan();
+ }
+}
+
+module HHookPlanDemo(){
+ MainPlanA();
+ HHookHookPlan();
+}
+
+// ---------- linear bracket ----------
+
+module LinearBracketA(){ ////toplevel
+ difference(){
+ union(){
+ HalfClampXPositive();
+ mirror([1,0,0])
+ linextr_y_xz(-open_gap/2 - linear_bracket_t, -open_gap/2)
+ rectfromto([0, min_z],
+ [max_x + linear_bracket_l, min_z + linear_bracket_h]);
+ }
+ HalfClampXNegative();
+ linextr(-1000,1000)
+ TubePlan();
+ mirror([1,0,0])
+ linextr_y_xz(-100,100) {
+ for (t = [
+ [1,1] * linear_bracket_hole_offset,
+ -[1,1] * linear_bracket_hole_offset +
+ [linear_bracket_l, linear_bracket_h]
+ ]) {
+ translate([ max_x, min_z ] + t)
+ circle(r= linear_bracket_hole_dia/2);
+ }
+ }
+ }
+}
+
+// ---------- 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();
}
-// translate([max_x - hinge_x + 20, 0]) color("blue") MainPlanA();
}
module GeneralB(){ ////toplevel
HalfClampX();
}
+module PlanDemo(){ ////toplevel
+ MainPlan();
+ translate([0,0,-4]) color("red") Portion(1);
+ translate([0,0,-2]) color("grey") Portion(0);
+
+ translate([0, tube_dia*1.5]) {
+ MainPlanB();
+ MainPlanA();
+ }
+
+ translate([0, -tube_dia*1.5]) {
+ VHookPlanDemo();
+ }
+ translate([tube_dia*4, 0]) {
+ HHookPlanDemo();
+ }
+// 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();
+}
+
+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();
~ianmdlvl / reprap-play.git / blobdiff