smooth_r = 15;
-bolt_dia = 5 + 0.75;
+bolt_dia = 5;
bolt_flat = 10 + 1;
nbolts = 2;
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;
// ========== 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;
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;
}
}
-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);
- }
+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);
}
- 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);
- translate([0, -flats_y, 0])
- rotate([90,0,0])
- cylinder(r= bolt_flat/2, h= tube_dia/2);
- }
+ }
+}
+
+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(){
+ HalfClampXPositive(flatten);
+ HalfClampXNegative();
+ }
+}
+
// ---------- vhook ----------
module VHookProfile() {
}
}
-module VHookPartA(){ ////toplevel
+module VHookA(){ ////toplevel
DummyA();
translate([0, vhook_ctr, 0]){
}
}
+// ---------- 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(){
}
}
-module HHookPartA(){ ////toplevel
+module HHookA(){ ////toplevel
DummyA();
linextr(min_z, max_z) {
HHookHookPlan();
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
// 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();
}
~ianmdlvl / reprap-play.git / blobdiff