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 = 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_stem_h = 3;
+catch_stem_len = 50;
+catch_stem_th = 3;
+
+catch_knob_dia = 6;
+catch_knob_above_gap = 8;
+catch_pin_height = 7;
+
+catch_stem_below_gap = 1.0;
+catch_stem_beside_gap = 2.0;
+catch_pin_gap = 0.5;
+
// calculated
TAU = PI*2;
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_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
- + max(sm_bolt_head_thick, sm_bolt_nut_thick);
+ + sm_bolt_head_thick/2 + smc_bolt_nut_eff_thick/2;
+
+catch_cr = catch_knob_dia/2 + catch_stem_beside_gap;
+catch_strap_width = sm_main_width;
+catch_stem_end_h = catch_stem_h;
+
+cpp0 = [0,0];
+cpp1 = cpp0 + [0,1] * catch_pin_height;
+cpp2 = cpp1 + [1,0] * (rivet_entry_width - catch_pin_gap);
+cpp4 = cpp0 + [0,-1] * catch_stem_end_h;
+cpp3 = [ cpp2[0], cpp4[1] ];
+cpp5 = [ cpp0[0] - catch_stem_len,
+ 0 - (catch_stem_h + catch_cr) ];
+cppB = [ 0.5*(cpp1 + cpp2)[0],
+ cpp1[1] - catch_pin_height - catch_knob_above_gap -
+ 0.5 * catch_knob_dia ];
+cpp7 = cppB + [1,-1] * catch_knob_dia/2
+ + [ catch_stem_beside_gap, -catch_stem_below_gap ]
+ + [ 0, -catch_pin_height ]
+ + [-1,1] * catch_cr;
+cpp11 = cpp7 + [1,0] * catch_cr;
+cpp6 = cpp5;
+cpp10 = [ cpp11[0], 0 - catch_cr ];
+cpp8 = cpp10 + [1,0] * catch_cr;
+cpp9 = cpp8 + [0,1] * catch_cr;
+cppC = cpp8 + [1,1] * catch_cr;
+cppA = [ cpp5[0] - catch_cr*2, 0 ];
+cppD = cppC + [0,-1] * catch_strap_width;
+cppE = [ cppA[0], cppD[1] ];
$fs= coarse ? 2.5 : 0.5;
$fa= coarse ? 5 : 1;
+include <poster-tube-lid-parametric.scad>
+
// bayonet definition
bayo_a = [ bayo_entry_x, 0 ];
translate([ oring_mid_dia/2 - main_dia/2, 0 ])
hull(){
translate([ 0, oring_y_rad ])
- scale([ 1/oring_oblate, oring_oblate ])
+ scale([ 1/oring_oblate * (oring_compress_more+1) , oring_oblate ])
circle(oring_thick/2);
translate([ 0, oring_y_rad*2 - oring_thick/2 ])
circle(oring_thick/2);
}
}
-module HandlingProfile(){
-// translate([
-}
-
module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
// nom_rad > real_rad
rotate([0,0, atan2(offset, nom_rad) ]){
}
}
}
+ for (r=[0,180])
+ rotate([0,0,r])
+ translate([-implheadcup_large_dia * .5 - implheadcup_thick/2,
+ -implheadcup_large_dia * .0,
+ middle_bot_z + 0.1])
+ ImplHeadCup();
// translate(strap_hoop_thick * [-0.5, 0, +1])
// translate([handling_dia/2, 0, -side_height])
// rotate([0,180,0]) rotate([0,0,90])
}
}
+module ImplHeadCupTest(){ ////toplevel
+ for (r=[0,180])
+ rotate([0,0,r])
+ translate([-17,0,0])
+ ImplHeadCup();
+}
+
module StrapMountBolt(l_delta){ ///toplevel
// positioned relative to smc_pos
- translate([(sm_bolt_nut_thick - sm_bolt_head_thick)/2,
+ translate([(smc_bolt_nut_eff_thick - sm_bolt_head_thick)/2,
smc_bolt_y,
sm_main_width/2]){
translate([ -sm_bolt_shaft/2-1, 0,0 ]){
}
translate([ -sm_bolt_shaft/2, 0,0 ])
rotate([0,-90,0])
- cylinder($fn=6, r=smc_bolt_nut_dia/2, h=sm_bolt_nut_thick + l_delta);
+ 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);
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);
+ }
+}
+
+module CatchCoreProfile(){ ////toplevel
+ difference(){
+ polygon([ cpp4,
+ cpp3,
+ cpp2,
+ cpp1,
+ cpp0,
+ cppA,
+ cppE,
+ cppD,
+ cppC,
+ cpp9,
+ cpp10,
+ cpp11,
+ cpp6,
+ cpp5,
+ ], convexity=10);
}
}