// -*- C -*-
-main_dia = 71.2 + 0.50;
-top_thick = 4;
+coarse = false;
-main_cnr = 4.0;
+main_dia = 71.2 + 0.50 - 2.26;
+top_thick_middle = 4;
+top_thick_by_oring = 3.0;
+top_middle_dr = 11;
-rivet_posn = 6.0;
+main_cnr = 6.0;
+
+min_wall = 3;
+
+rivet_posn = 6.0 + 0.30;
rivet_thick = 1.67;
rivet_width = 4.15 + 1.0;
-rivet_tall = 5.51 + 0.49;
+rivet_tall = 5.51 + 1.49;
-over_rivet_wall = 0.5;
+over_rivet_wall = 1.0;
side_rivet_gap = 1.5;
+inside_rivet_gap = 1.5;
-bayo_interf = 0.75;
+bayo_interf = 0.30;
bayo_behind = 3.5;
bayo_interf_width = 2.0;
-bayo_interf_slope = 0.75;
+bayo_interf_slope = 0.5;
+
+oring_thick = 5.0;
+oring_bore = 62.0;
-seal_thick = 0.1;
-seal_recess = [ 2.0, 2.0 ]; // recess depth, recess height
+oring_upper_embed_angle = 80;
+oring_compress = 0.1; // proportion
+oring_compress_more = 0.2;
+
+oring_rm_beside = 8;
+oring_rm_scale = 2.0;
+oring_rm_angle = 20;
side_taper = 1.0;
-bayo_above_gap = 1.0;
+bayo_gap = 6.0;
bayo_entry = bayo_behind/3;
-bayo_slice_size = 1;
+bayo_slice_size = coarse ? 5 : 1;
brace_hole_width = 1.0;
-brace_above_below = 0.5;
+brace_above_below = 1.2;
+brace_end_shorter = 0.3;
+
+jig_thick = 1.4;
+jig_hole_dia = 3.0;
+jig_rim = 5;
+jig_mark = 5;
+
+strap_hoop_thick = 6;
+strap_hoop_inside = 10;
+strap_hoop_strlen = 10;
+strap_hoop_elevation = 45;
+
+sm_inner_circum = 218 - 1.90 - 1.00 - 0.50;
+sm_main_thick = 2.0;
+sm_main_width = 20;
+
+sm_bolt_dia = 3.5 + 0.1;
+sm_bolt_shaft = 21.9;
+sm_bolt_head_dia = 6.94 + 1.0;
+sm_bolt_head_thick = 2.14;
+sm_bolt_nut_width = 5.89 + 0.25;
+sm_bolt_nut_thick = 3.68;
+sm_bolt_tighten_allow = 2.0;
+
+sm_bolt_y_clear = 0.75;
+sm_bolt_y_over = 0.5;
+
+sm_closure_cnr = 3.0;
// calculated
+TAU = PI*2;
+
bayo_entry_x = bayo_entry;
bayo_entry_z = bayo_entry;
bayo_inramp_x = bayo_entry;
bayo_inramp_z = bayo_entry;
+oring_mid_dia = oring_bore + oring_thick;
+oring_outer_dia = oring_mid_dia + oring_thick;
+
+oring_oblate = (1 - oring_compress);
+
+oring_y_rad = oring_thick/2 * oring_oblate;
+oring_x_rad = oring_thick/2 / oring_oblate;
+
+by_oring_z = oring_y_rad * (1 + cos(oring_upper_embed_angle));
+
side_height = rivet_posn + bayo_behind + rivet_thick/2;
side_thick = rivet_tall + over_rivet_wall;
-top_z = top_thick + seal_thick;
+top_z = top_thick_by_oring + oring_y_rad + by_oring_z;
+
+middle_bot_z = top_z - top_thick_middle;
bayo_entry = bayo_behind / 3.0;
-bayo_top_z = bayo_behind + rivet_thick + bayo_above_gap;
-bayo_entry_ramp = bayo_entry + bayo_interf;
+bayo_top_z = bayo_behind + bayo_gap;
rivet_entry_width = rivet_width + side_rivet_gap;
-$fs=0.5;
-$fa=1;
+jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
+
+handling_dia = oring_bore + oring_thick*2 + min_wall*2;
+handling_angle = 45;
+
+sm_inner_rad = (sm_inner_circum + sm_bolt_tighten_allow/2) / TAU;
+sm_outer_rad = sm_inner_rad + sm_main_thick;
+
+smc_pos = [ 0, sm_inner_rad, 0 ];
+
+smc_bolt_nut_dia = sm_bolt_nut_width / cos(30);
+smc_bolt_nut_eff_thick = sm_bolt_nut_thick + sm_bolt_tighten_allow;
+
+smc_bolt_y = sm_bolt_dia/2 + sm_bolt_y_clear;
+smc_max_y = smc_bolt_y + sm_bolt_y_over
+ + max(sm_bolt_head_dia/2, smc_bolt_nut_dia/2);
+smc_cnr_c_x = sm_bolt_shaft/2 - sm_closure_cnr
+ + sm_bolt_head_thick/2 + smc_bolt_nut_eff_thick/2;
+
+$fs= coarse ? 2.5 : 0.5;
+$fa= coarse ? 5 : 1;
+
+include <poster-tube-lid-parametric.scad>
// bayonet definition
bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope, 1 ];
bayo_k = bayo_l + [ bayo_interf_width, 0 ];
bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
-bayo_i = bayo_j + [ rivet_width, 0 ];
-bayo_h = [ bayo_i[0], bayo_behind + rivet_thick + bayo_above_gap ];
+bayo_i = bayo_j + [ rivet_width + inside_rivet_gap, 0 ];
+bayo_h = [ bayo_i[0], bayo_behind + bayo_gap + bayo_interf ];
bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
module MainProfile(){
main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
- translate(main_cnr_pos){
- intersection(){
- difference(){
- circle(r = main_cnr);
- circle(r = main_cnr * 0.5);
+ difference(){
+ union(){
+ translate(main_cnr_pos){
+ intersection(){
+ difference(){
+ circle(r = main_cnr);
+ circle(r = main_cnr * 0.5);
+ }
+ square([10,10]);
+ }
}
- square([10,10]);
+ polygon([[ -top_middle_dr, middle_bot_z ],
+ [ -top_middle_dr, top_z ],
+ [ main_cnr_pos[0], top_z ],
+ [ side_thick, main_cnr_pos[1] ],
+ [ side_thick, -side_height ],
+ [ side_taper, -side_height ],
+ [ 0, -rivet_posn ],
+ [ 0, by_oring_z ],
+ [ -oring_x_rad, by_oring_z ],
+ ],
+ convexity=10);
+ }
+ translate([ oring_mid_dia/2 - main_dia/2, 0 ])
+ hull(){
+ translate([ 0, oring_y_rad ])
+ scale([ 1/oring_oblate * (oring_compress_more+1) , oring_oblate ])
+ circle(oring_thick/2);
+ translate([ 0, oring_y_rad*2 - oring_thick/2 ])
+ circle(oring_thick/2);
}
}
- polygon([[ -1, seal_thick ],
- [ -1, top_z ],
- [ main_cnr_pos[0], top_z ],
- [ side_thick, main_cnr_pos[1] ],
- [ side_thick, -side_height ],
- [ side_taper, -side_height ],
- [ 0, -rivet_posn ],
- [ 0, -(seal_recess[0] + seal_recess[1]) ],
- [ seal_recess[0], -(seal_recess[0]) ],
- [ seal_recess[0], seal_thick ],
- ]);
+}
+
+module StrapHoopProfile(){
+ circle(r = strap_hoop_thick/2);
+}
+
+module StrapHoop(){ ////toplevel
+ bigrad = strap_hoop_inside/2 + strap_hoop_thick/2;
+ extralen = strap_hoop_thick * 5;
+
+ intersection(){
+ rotate([strap_hoop_elevation, 0,0]){
+ for (x= [ -1, +1 ] * bigrad) {
+ translate([x, -extralen, 0])
+ rotate([-90,0,0])
+ linear_extrude(height= extralen + strap_hoop_strlen + 0.1,
+ convexity=10)
+ StrapHoopProfile();
+ }
+ translate([0, strap_hoop_strlen, 0]){
+ intersection(){
+ rotate_extrude(convexity=10)
+ translate([bigrad, 0,0])
+ StrapHoopProfile();
+ translate([0,50,0])
+ cube([100,100,100], center=true);
+ }
+ }
+ }
+ translate([0, 50, 0])
+ cube(100, center=true);
+ }
+}
+
+module HandlingProfile(){
+// translate([
}
module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
main_dia/2 + side_thick,
main_dia/2 + rivet_tall)
- polygon(bayo_polygon);
+ translate([-0.5 * (bayo_a[0] + bayo_d[0]), 0])
+ polygon(bayo_polygon, convexity=10);
}
-module ProfilesDemo(){
- translate([-20,0]) MainProfile();
- polygon(bayo_polygon);
+module ProfilesDemo(){ ////toplevel
+ translate([-10,0]) MainProfile();
+ translate([+10, -side_height]) polygon(bayo_polygon, convexity=10);
}
-module Cover(){
- difference(){
- union(){
- rotate_extrude()
- translate([main_dia/2, 0])
- MainProfile();
- translate([0,0, seal_thick])
- cylinder(h= top_thick, r = main_dia/2);
+module LimitForHandling(){ ////toplevel
+ hull() for (r=[0,180])
+ rotate([0,0,r]) {
+ for (rs=[-1,+1]) {
+ for (xd=[0,1]) {
+ rotate([0,0, rs * handling_angle/2]) {
+ translate([rs * xd * main_dia/2 * tan(handling_angle/2),
+ main_dia/2 + side_thick - main_cnr,
+ top_z - main_cnr]) {
+ mirror([0,0,1])
+ cylinder(r= main_cnr, h=50);
+ sphere(main_cnr);
+ }
+ }
+ }
+ }
+ }
+ hull() rotate_extrude(){
+ translate([ handling_dia/2 - main_cnr, top_z - main_cnr ]) {
+ circle(r = main_cnr);
+ mirror([0,1]) square([ main_cnr, 50 ]);
}
- for (r=[0,180])
+ }
+ //cylinder(r= handling_dia/2, h=20);
+}
+
+module Cover(){ ////toplevel
+ render() difference(){
+ intersection(){
+ union(){
+ rotate_extrude(convexity=10)
+ translate([main_dia/2, 0])
+ MainProfile();
+ translate([0,0, middle_bot_z])
+ cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
+ }
+ LimitForHandling();
+ }
+ for (r=[0,180]){
rotate([0,0, r])
translate([0,0, -side_height])
BayonetCutout();
+ rotate([0,0, r + asin((-oring_rm_beside) / (main_dia/2))])
+ translate([0,
+ oring_mid_dia/2 + oring_thick/4 * oring_rm_scale,
+ oring_y_rad * 1.5])
+ rotate([-oring_rm_angle, 0, 0])
+ mirror([0,0,1])
+ cylinder(r = oring_thick/4 * oring_rm_scale, h=20);
+ }
for (r=[0 : 60 : 179]) {
rotate([0,0, r]) {
- height = top_thick - brace_above_below*2;
- translate([0,0, seal_thick + brace_above_below + height/2 ])
- cube(center=true, [ main_dia, brace_hole_width, height ]);
+ height = top_thick_middle - brace_above_below*2;
+ translate([0,0, middle_bot_z + brace_above_below + height/2 ])
+ cube(center=true, [ oring_bore - brace_end_shorter,
+ brace_hole_width, height ]);
+ }
+ }
+ }
+ for (r=[0,180])
+ rotate([0,0,r])
+ translate([-implheadcup_large_dia * .5 - implheadcup_thick/2,
+ -implheadcup_large_dia * .0,
+ middle_bot_z + 0.1])
+ ImplHeadCup();
+// translate(strap_hoop_thick * [-0.5, 0, +1])
+// translate([handling_dia/2, 0, -side_height])
+// rotate([0,180,0]) rotate([0,0,90])
+// StrapHoop();
+}
+
+module SavingHole(){
+ translate([0,0, -10])
+ cylinder(r= main_dia/2 - jig_rim, h=20);
+}
+
+module Jig(){ ////toplevel
+ difference(){
+ union(){
+ translate([0,0, -side_height]){
+ cylinder(r= main_dia/2 + jig_thick, h= side_height + jig_thick);
+ }
+ translate([-jig_mark_rad, 0, jig_thick - jig_mark])
+ cube([jig_mark_rad*2, jig_mark, jig_mark]);
+ }
+ translate([0,0, -side_height-1])
+ cylinder(r= main_dia/2, h= side_height + 1);
+ SavingHole();
+ translate([0,0, -rivet_posn])
+ rotate([90, 0,0])
+ translate([0,0, -100])
+ cylinder(r= jig_hole_dia/2, h = 200);
+ }
+}
+
+module CoverTest2(){ ////toplevel
+ difference(){
+ Cover();
+ SavingHole();
+ }
+}
+
+module CoverTest1(){ ////toplevel
+ difference(){
+ CoverTest2();
+ difference(){
+ for (r= [ 40, 147 ]){
+ rotate([0,0, r]){
+ translate([0,0, -10]) {
+ cube([ main_dia*3, main_dia * .53, 18], center=true);
+ }
+ }
+ }
+// translate([ 50, 0, 0 ])
+// cube([ 100,
+// strap_hoop_inside + strap_hoop_thick*2 + 1,
+// 100 ],
+// center=true);
+ }
+ }
+}
+
+module ImplHeadCupTest(){ ////toplevel
+ for (r=[0,180])
+ rotate([0,0,r])
+ translate([-17,0,0])
+ ImplHeadCup();
+}
+
+module StrapMountBolt(l_delta){ ///toplevel
+ // positioned relative to smc_pos
+ translate([(smc_bolt_nut_eff_thick - sm_bolt_head_thick)/2,
+ smc_bolt_y,
+ sm_main_width/2]){
+ translate([ -sm_bolt_shaft/2-1, 0,0 ]){
+ rotate([0,90,0]) cylinder(r= sm_bolt_dia/2, h= sm_bolt_shaft+2);
+ }
+ translate([ -sm_bolt_shaft/2, 0,0 ])
+ rotate([0,-90,0])
+ cylinder($fn=6, r=smc_bolt_nut_dia/2,
+ h=smc_bolt_nut_eff_thick + l_delta);
+ translate([ sm_bolt_shaft/2, 0,0 ])
+ rotate([0,90,0])
+ cylinder(r=sm_bolt_head_dia/2, h=sm_bolt_head_thick + l_delta);
+ }
+}
+
+module StrapMountProtrusion(half_x, max_y, cnr){
+ translate(smc_pos){
+ linear_extrude(height=sm_main_width, convexity=10){
+ hull(){
+ for (m = [0,1]) mirror([m,0,0]) {
+ translate([-(half_x - cnr), max_y - cnr])
+ circle(r=cnr);
+ translate([-half_x, -sm_inner_rad])
+ square([1,1]);
+ }
+ }
+ }
+ }
+}
+
+module StrapMount(){ ////toplevel
+ difference(){
+ union(){
+ cylinder(r=sm_outer_rad, h=sm_main_width);
+ StrapMountProtrusion(smc_cnr_c_x + sm_closure_cnr,
+ smc_max_y,
+ sm_closure_cnr);
+ rotate([0,0,180]){
+ StrapMountProtrusion(strap_hoop_inside/2 + strap_hoop_thick,
+ strap_hoop_thick,
+ sm_closure_cnr);
+ translate(smc_pos +
+ [0,0, sm_main_width] +
+ strap_hoop_thick * [ 0, 0.5, -1.0 ])
+ StrapHoop();
}
}
+ translate([0,0,-1])
+ cylinder(r=sm_inner_rad, h=sm_main_width+2);
+ translate(smc_pos)
+ StrapMountBolt(10);
+ translate(smc_pos)
+ cube([ sm_bolt_tighten_allow, 40,100 ], center=true);
}
}
//ProfilesDemo();
//BayonetCutout();
//MainProfile();
-Cover();
+//Cover();
+//Jig();
+//CoverTest();
~ianmdlvl / reprap-play.git / blobdiff