min_wall = 3;
-rivet_posn = 6.0 + 1.5;
+rivet_posn = 6.0 + 0.30;
rivet_thick = 1.67;
rivet_width = 4.15 + 1.0;
rivet_tall = 5.51 + 1.49;
over_rivet_wall = 1.0;
side_rivet_gap = 1.5;
+inside_rivet_gap = 1.5;
-bayo_interf = 1.25;
+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;
oring_upper_embed_angle = 80;
oring_compress = 0.1; // proportion
+oring_compress_more = 0.2;
oring_rm_beside = 8;
oring_rm_scale = 2.0;
side_taper = 1.0;
-bayo_gap = 1.0 + 1.67;
+bayo_gap = 6.0;
bayo_entry = bayo_behind/3;
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_entry = bayo_behind / 3.0;
bayo_top_z = bayo_behind + bayo_gap;
-bayo_entry_ramp = bayo_entry + bayo_interf;
rivet_entry_width = rivet_width + side_rivet_gap;
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_a = [ bayo_entry_x, 0 ];
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_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] ];
translate([ oring_mid_dia/2 - main_dia/2, 0 ])
hull(){
translate([ 0, oring_y_rad ])
- scale([ 1/oring_oblate, oring_oblate ])
+ 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);
}
}
+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([
}
}
}
}
+ 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(){
module CoverTest1(){ ////toplevel
difference(){
CoverTest2();
- for (r= [ 40, 147 ]){
- rotate([0,0, r]){
- translate([0,0, -10]) {
- cube([ main_dia*3, main_dia * .55, 18], center=true);
+ 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);
}
}
~ianmdlvl / reprap-play.git / blobdiff