// -*- C -*-
+include <funcs.scad>
+
coarse = false;
main_dia = 71.2 + 0.50 - 2.26;
min_wall = 3;
-rivet_posn = 6.0 + 0.1;
+rivet_posn = 6.0 + 0.30;
rivet_thick = 1.67;
rivet_width = 4.15 + 1.0;
rivet_tall = 5.51 + 1.49;
side_rivet_gap = 1.5;
inside_rivet_gap = 1.5;
-bayo_interf = 0.44;
+bayo_interf = 0.30;
bayo_behind = 3.5;
bayo_interf_width = 2.0;
bayo_interf_slope = 0.5;
oring_upper_embed_angle = 80;
oring_compress = 0.1; // proportion
+oring_compress_more = 0.2;
oring_rm_beside = 8;
oring_rm_scale = 2.0;
strap_hoop_strlen = 10;
strap_hoop_elevation = 45;
-sm_inner_circum = 239;
-sm_main_thick = 2.5;
-sm_main_width = 25;
+sm_inner_circum = 218 - 1.90 - 1.00 - 0.50;
+sm_main_thick = 2.0;
+sm_main_width = 20;
-sm_bolt_dia = 3.5;
+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 = 0.0;
+sm_bolt_tighten_allow = 2.0;
-sm_bolt_y_clear = 0.5;
+sm_bolt_y_clear = 0.75;
sm_bolt_y_over = 0.5;
sm_closure_cnr = 3.0;
+catch_stalk_h = 4.5;
+catch_stalk_len = 50;
+catch_head_th = 3;
+
+catch_pin_slop = 0.25; // each side, and above
+catch_pin_slop_x_extra = 0.0; // only on one side
+catch_stalk_above_gap = 1.5;
+catch_stalk_eff_bend_rad = catch_stalk_len * 0.75;
+
+catch_stalk_base_width = 15;
+
+catch_knob_dia = 6;
+catch_knob_above_gap = 5;
+catch_knob_height = 5;
+
+catch_stalk_below_gap = 1.0;
+catch_stalk_beside_gap = 2.0;
+
// calculated
TAU = PI*2;
bayo_entry = bayo_behind / 3.0;
bayo_top_z = bayo_behind + bayo_gap;
+bayo_nom_rad = main_dia/2 + side_thick;
+bayo_real_rad = main_dia/2 + rivet_tall;
+
rivet_entry_width = rivet_width + side_rivet_gap;
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 / TAU;
+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_cnr_c_x = sm_bolt_shaft/2 - sm_closure_cnr
+ sm_bolt_head_thick/2 + smc_bolt_nut_eff_thick/2;
+catch_cr = catch_knob_dia/2 + catch_stalk_beside_gap;
+catch_strap_width = sm_main_width;
+catch_strap_thick = sm_main_thick;
+
+echo("R ", sm_inner_rad, bayo_real_rad, bayo_nom_rad);
+
$fs= coarse ? 2.5 : 0.5;
$fa= coarse ? 5 : 1;
+include <poster-tube-lid-parametric.scad>
+
// bayonet definition
bayo_a = [ bayo_entry_x, 0 ];
echo(bayo_polygon);
+// CATCH
+
+//cppy6 = -catch_strap_width * 2/3;
+
+cppxC = 0.41 * sm_inner_rad * TAU;
+
+// catch pin
+
+cpp_adj = (bayo_n[0] - bayo_f[0]) * (1 - sm_inner_rad / bayo_nom_rad);
+// radius scaling due to nom and actual radius difference in
+// bayo entry construction
+
+cppa = bayo_f + [1,-1] * catch_pin_slop + [1,0] * cpp_adj;
+cppb = bayo_g + [1,-1] * catch_pin_slop + [1,0] * cpp_adj;
+cppd = [ bayo_n[0]
+ - catch_pin_slop - catch_pin_slop_x_extra,
+ -catch_stalk_above_gap ];
+cppc = [ cppd[0], cppb[1] ];
+cpph = cppd + [0,-1] * catch_stalk_h;
+cppe = cppd + [0,-1] * (catch_knob_above_gap + catch_knob_dia/2);
+cppf = [ cppa[0], cppe[1] ];
+cppg = [ cppa[0], cpph[1] ];
+cppB = 0.5 * (cppf + cppe);
+
+echo("RR", sm_inner_rad / bayo_nom_rad);
+
+// catch assembly depression below pin
+
+cppy6 = cppB[1] - (catch_knob_dia/2
+ + (cppc[1] - cppd[1])
+ + catch_stalk_below_gap);
+cpp7 = [ cppB[0], cppy6 + catch_cr ];
+cpp11 = cpp7 + [1,0] * catch_cr;
+cppy9 = cppy6 + catch_strap_width * 1/3;
+cpp9 = [ cpp7[0] + catch_cr * 2, cppy9 ];
+cpp8 = cpp9 + [0,-1] * catch_cr;
+cpp10 = cpp8 + [-1,0] * catch_cr;
+cppC = [ cppxC, cpp9[1] ];
+cppD = cppC + [0,-1] * catch_strap_width;
+
+// catch assembly stalk and so on
+
+cppF = [ cppg[0] - catch_stalk_eff_bend_rad, cppd[1] ];
+cpp4 = [ cppg[0] - catch_stalk_len, cpph[1] ] + [1,-1] * catch_cr;
+cpp5 = [ cpp4[0], cppC[1] + catch_cr ];
+cpp2 = cpp5 + [-1,0] * (catch_cr * 2 + catch_stalk_base_width);
+cpp2r = cpp2 + [1,0] * catch_cr;
+cpp2d = cpp2 + [0,-1] * catch_cr;
+cpp3 = [ cpp2[0] + catch_cr * 2, cppd[1] - catch_cr ];
+cppA = [ -cppxC, cpp9[1] ];
+cppE = [ cppA[0], cppD[1] ];
+
+catch_assembly_dy = -cppy9 + catch_strap_width;
+
+
module MainProfile(){
main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
difference(){
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 HandlingProfile(){
-// translate([
-}
-
module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
// nom_rad > real_rad
rotate([0,0, atan2(offset, nom_rad) ]){
module BayonetCutout(){
RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
- main_dia/2 + side_thick,
- main_dia/2 + rivet_tall)
+ bayo_nom_rad,
+ bayo_real_rad)
translate([-0.5 * (bayo_a[0] + bayo_d[0]), 0])
polygon(bayo_polygon, convexity=10);
}
}
}
}
+ 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])
}
}
+module ImplHeadCupTest(){ ////toplevel
+ for (r=[0,180])
+ rotate([0,0,r])
+ translate([-17,0,0])
+ ImplHeadCup();
+}
+
+module SomeStrap(){
+ // children(0) is to add, (1) subtract
+ 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);
+ children(0);
+ }
+ 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);
+ children(1);
+ }
+}
+
module StrapMountBolt(l_delta){ ///toplevel
// positioned relative to smc_pos
translate([(smc_bolt_nut_eff_thick - sm_bolt_head_thick)/2,
}
module StrapMount(){ ////toplevel
+ SomeStrap(){
+ 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();
+ }
+ union(){ };
+ }
+}
+
+module CatchAssemblyCoreProfile(){
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);
+ hull(){
+ translate(cpp3) circle(r= catch_cr);
+ polygon([ cpp3,
+ cpp2r,
+ cpp5,
+ cpph,
+ cppd
+ ]);
+ }
+ polygon([cppD,
+ cppC,
+ cpp9,
+ cpp10,
+ cpp11,
+ cpp4,
+ cpp2r,
+ cpp2d,
+ cppA,
+ cppE
+ ]);
+ translate(cpp8) circle(r= catch_cr);
}
- translate([0,0,-1])
- cylinder(r=sm_inner_rad, h=sm_main_width+2);
- translate(smc_pos)
- StrapMountBolt(10);
+ hull(){
+ translate(cpp4) circle(r= catch_cr);
+ translate(cpp5) circle(r= catch_cr);
+ translate(cpp7) circle(r= catch_cr);
+ polygon([cpp4,
+ cppg,
+ cpph,
+ cpp10,
+ cpp11,
+ ]);
+ }
+ translate(cpp2) circle(r= catch_cr);
+ }
+}
+
+module CatchHeadProfile(){
+ intersection(){
+ translate(cppF){
+ difference(){
+ circle(r = dist2d(cppF, cppd));
+ //circle(r = dist2d(cppF, cppa));
+ }
+ }
+ polygon([ cppa,
+ cppg,
+ cpph,
+ cppd,
+ cppc,
+ cppb ]);
+ }
+ polygon([ cppd,
+ cppg,
+ cppf,
+ cppe,
+ cpph ]);
+}
+
+
+module CatchCore(){ /////toplevel
+ linear_extrude(height=catch_strap_thick, convexity=10)
+ CatchAssemblyCoreProfile();
+
+ linear_extrude(height=catch_head_th, convexity=10)
+ CatchHeadProfile();
+
+ translate(concat(cppB,[0])) hull(){
+ translate([0,0, catch_knob_height + catch_head_th - catch_knob_dia/2])
+ sphere(r = catch_knob_dia/2);
+ cylinder(r = catch_knob_dia/2, h = 0.1);
+ }
+}
+
+module CatchPreDistort(){ /////toplevel
+ scale(100 / sm_inner_rad)
+ rotate([90,0,0])
+ CatchCore();
+}
+
+module CatchAssembly(){ /////toplevel
+ rotate([0,0, -(cppe[0] + cppB[0] + catch_pin_slop) / sm_inner_rad * 360/TAU])
+ translate([0,0, catch_assembly_dy])
+ scale(sm_inner_rad / 100)
+ import(str("poster-tube-lid,CatchPostDistort-fa",
+ (coarse ? 20 : 3),
+ ".stl"),
+ convexity=20);
+
+ SomeStrap(){
+ union(){ }
+ union(){
+ translate([-200, -200, -200])
+ cube([400, 200, 400]);
+ }
+ }
+}
+
+module CatchDemo(){ /////toplevel
+ color("blue") translate([0,0,
+ -catch_assembly_dy
+ ])
+ CatchAssembly();
+ translate([0,0,+side_height
+ ])
+ Cover();
+}
+
+module CatchDemoS(){ /////toplevel
+ color("blue") translate([0,0,
+ -catch_assembly_dy
+ ])
+ CatchAssembly();
+ intersection(){
+ translate([0,0,+side_height
+ ])
+ Cover();
+ mirror([0,1,0]) translate([-250,33,0]) cube([500,500,500]);
+ }
+ color("black")
+ translate([0,-33,0])
+ cube([6.15, 2,2], center=true);
+}
+
+module CatchPinProfileDemo(){ /////toplevel
+ echo("G ",
+ cpp2[0] - cpp1[0],
+ bayo_n[0] - bayo_e[0]);
+ color("blue") translate([0,0,
+ +1,
+ ]) {
+ CatchAssemblyCoreProfile();
+ CatchHeadProfile();
}
+ polygon(bayo_polygon, convexity=10);
}
//ProfilesDemo();
~ianmdlvl / reprap-play.git / blobdiff