// -*- C -*-
-opening_height = 7.84;
-opening_depth = 7.88;
+opening_height = 7.84 - 0.3 + 0.60;
+opening_depth = 6.0; // 7.88;
openingcnr_dia = 2.75;
opening_topprotr = 1.54;
gap = 0.25;
-retain_empir_angle = 20;
-retain_empir_stalkw = 1.0;
-retain_rad = 1.5;
+retain_rad = 1.65;
+retain_protr = 0.35;
+retain_hgap_adjust = 1.5;
+
+retain_stalk_len = 8.0;
+retain_stalk_h = 1.5;
+retain_bend_gap = 2.0;
+retain_empir_angle = -10;
+retain_pushmore_adj = 0.0;
+
+hgap_empir_adjust = -0.5 -2.50;
+
+topprotr_rad = 0.35;
bot_overlap = 5;
-bot_w = 3;
+top_w = 3;
+bot_w = 5;
-handle_d = 2;
handle_w = 8;
-handle_rh = 2;
+handle_rh = 3;
handle_rcut = 3;
cutout_gap = 1.5;
+total_len = 40;
+retain_len = 8;
+basics_len = 8;
+
+overret_hch = 5;
+
+peg_width_slop = 0.5;
+peg_inner_thick = 1.0;
+
+peg_wedge_less = 1.0;
+peg_wedge_more = 1.0;
+
// calculated
ins_irad = openingcnr_dia/2 + gap;
ins_orad = openingcnr_dia/2 + opening_height - gap;
ins_th = ins_orad - ins_irad;
-handle_x0 = ins_irad;
+handle_x0 = ins_irad + hgap_empir_adjust;
handle_h = bot_overlap + ins_th;
handle_y0 = -ins_orad-bot_overlap;
handle_y1 = handle_y0 + handle_h;
handle_x1 = handle_x0 + bot_w + handle_w;
+topprotr_y = -ins_irad + opening_topprotr;
+
+retain_mxy = [handle_x0 - retain_rad - retain_hgap_adjust,
+ -ins_orad + retain_rad - retain_protr];
+
+retain_cutout_h = retain_rad * 2 + retain_bend_gap;
+
+overret_gaplen = retain_cutout_h / cos(retain_empir_angle);
+
+peg_width = retain_stalk_len -
+ (handle_x0 - retain_mxy[0]) / cos(retain_empir_angle)
+ - peg_width_slop;
+
+peg_height = retain_cutout_h - (retain_rad + retain_stalk_h)
+ + retain_pushmore_adj;
+
+retain1_len = retain_len + retain_stalk_len;
+retain1_base = total_len - retain1_len;
+
+peg_len = retain_len;
+
module InsertSection(){
- translate([-ins_orad, 0]) square([ins_th, opening_topprotr]);
- translate([0, -ins_orad]) square([ins_irad+1, ins_th]);
+ hull(){
+ translate([-ins_irad, -ins_irad])
+ mirror([1, 0])
+ square([opening_depth - ins_irad, 0.1]);
+ translate([-ins_irad - topprotr_rad,
+ topprotr_y - topprotr_rad])
+ circle(r=topprotr_rad, $fn=10);
+ }
+ translate([0, -ins_orad]) square([ins_irad, ins_th]);
intersection(){
- translate([0.1,0.1]) mirror([1,1]) square([100,100]);
+ translate([0, -ins_irad])
+ mirror([1,1])
+ square([100, opening_depth]);
difference(){
circle(r= ins_orad);
circle(r= ins_irad, $fn=20);
}
}
hull(){
- for (x= [handle_x0 + bot_w + handle_rcut/2,
+ for (x= [handle_x0 + top_w + handle_rcut/2,
handle_x1 - handle_rh/2 - handle_rcut/2]) {
translate([x, handle_y1])
circle(r = handle_rcut/2, $fn=20);
translate([handle_x1 - handle_rh/2, y])
circle(r = handle_rh/2, $fn=20);
}
+ translate([ handle_x1 - handle_rh*2,
+ handle_y1 - handle_rh/2 ])
+ circle(r = handle_rh/2, $fn=20);
}
module RetainSection(){
- rotate(180-retain_empir_angle)
- translate([0,ins_orad]) circle(r=retain_rad, $fn=20);
+ translate(retain_mxy) {
+ rotate(retain_empir_angle) {
+ circle(r=retain_rad, $fn=20);
+ translate([0, -retain_pushmore_adj])
+ square([retain_stalk_len + 1, retain_stalk_h]);
+ }
+ }
}
-module RetainCutout(){
- rotate(180-retain_empir_angle)
- translate([0,ins_orad]) {
- difference(){
- circle(r=retain_rad + cutout_gap, $fn=20);
- rotate(180 + retain_empir_angle/2)
- translate([0, -retain_empir_stalkw])
- square([100, retain_empir_stalkw*2]);
+module PegSection(delta){
+ hull(){
+ translate([0, -delta/2])
+ square([0.1,
+ peg_height + delta]);
+ translate([peg_width - 0.1,
+ peg_height/2 - peg_inner_thick/2])
+ square([0.1, peg_inner_thick]);
+ }
+}
+
+module PegSectionForDemo(delta){
+ translate(retain_mxy)
+ rotate(retain_empir_angle)
+ translate([retain_stalk_len - peg_width - peg_width_slop/2,
+ retain_stalk_h - retain_pushmore_adj])
+ PegSection(delta);
+}
+
+module RetainCutout(gapping=false){
+ translate(retain_mxy) {
+ rotate(retain_empir_angle) {
+ translate([-50, -retain_rad]) {
+ square([50 + retain_stalk_len,
+ retain_cutout_h]);
+ }
}
}
}
-module WithRetainSection(){
+module GappingSection(){
difference(){
- InsertSection();
- RetainCutout();
+ union(){
+ InsertSection();
+ HandleSection();
+ }
+ RetainCutout(true);
}
- HandleSection();
- RetainSection();
}
-module Demo(){
+module WithRetainSection(){
difference(){
- InsertSection();
+ union(){
+ InsertSection();
+ HandleSection();
+ }
RetainCutout();
}
+ RetainSection();
+}
+
+module BasicSection(){
+ InsertSection();
HandleSection();
- color("red") RetainSection();
+}
+
+module PegSectionSlice(lambda) {
+ delta = peg_wedge_more * (1-lambda) + -peg_wedge_less * lambda;
+ z = peg_len * lambda;
+ translate([0,0, z])
+ linear_extrude(height=0.1)
+ PegSection(delta);
+}
+
+module Peg(){
+ iters = 20;
+ for (i = [0 : iters-1]) {
+ lambda = i/iters;
+ hull(){
+ PegSectionSlice(lambda);
+ PegSectionSlice(lambda + 1/iters);
+ }
+ }
+}
+
+module PegPrintL(){
+ rotate([0,-90,0]) Peg();
+}
+
+module PegPrintR(){
+ mirror([1,0,0]) PegPrintL();
+}
+
+module Handle(){
+ bs1 = retain_len + overret_gaplen + 4;
+
+ translate([0,0,0])
+ linear_extrude(height= retain_len)
+ WithRetainSection();
+
+ translate([0,0, bs1])
+ linear_extrude(height= basics_len)
+ BasicSection();
+
+ translate([0,0, bs1+0.1]) mirror([0,0,1]) {
+ intersection_for (sl=[0,1]) {
+ multmatrix([[1,0,0,0],
+ [0,1,sl,0],
+ [0,0,1,0],
+ [0,0,0,1]])
+ linear_extrude(height= overret_gaplen + 10, convexity=100)
+ BasicSection();
+ }
+ }
+
+ linear_extrude(height=total_len, convexity=100) GappingSection();
+
+ translate([0,0, retain1_base]) {
+ intersection(){
+ linear_extrude(height=retain1_len, convexity=100)
+ WithRetainSection();
+ translate([retain_mxy[0], retain_mxy[1], 0])
+ rotate([0,0, retain_empir_angle])
+ translate([retain_stalk_len, -30, 0])
+ multmatrix([[1,0,-1,0],
+ [0,1,0,0],
+ [0,0,1,0],
+ [0,0,0,1]])
+ cube([50, 60, 50]);
+ }
+ }
+}
+
+module Demo(){
+ color("red") translate([0,0,-3]) BasicSection();
+ color("blue") translate([0,0,3]) WithRetainSection();
+ color("orange") translate([0,0,7]) PegSectionForDemo(0);
}
module Test(){
- linear_extrude(height=2) WithRetainSection();
+ linear_extrude(height=2) {
+ WithRetainSection();
+ translate([0, -handle_y0 + topprotr_y + 10])
+ BasicSection();
+ }
+}
+
+module PegTestKit(){
+ PegPrintL();
+ translate([2,0,0]) PegPrintR();
+ translate([0,-2,0])
+ linear_extrude(height=retain_len, convexity=100) WithRetainSection();
}
//Demo();
+//HandleSection();
+//InsertSection();
//WithRetainSection();
-Test();
+//BasicSection();
+//GappingSection();
+//Test();
+//Peg();
+//PegPrintR();
+PegTestKit();
+//Demo();
+//Handle();