clipthick = 2;
clipang = 135;
-$stemlen = 40;
+stemlen = 40;
topwidth = 20;
hookwidth = 4;
tuberad = tubewidth/2;
+bend = atan(tuberad/stemlen);
mainoutrad = tuberad + mainthick;
hookoutrad = hookinrad + hookwidth;
-$hookcy = -($stemlen - hookoutrad);
+hookcy = -(stemlen - hookoutrad);
-$eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 0.1];
-$elmid = [topwidth/2, -tuberad];
-$ellow = tangent_intersect_b([0,$hookcy], hookinrad, $elmid);
-$ellowextra = 180 - tangent_intersect_beta([0,$hookcy], hookinrad, $elmid);
+eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 0.1];
+elmid = [topwidth/2, -tuberad];
+ellow = tangent_intersect_b([0,hookcy], hookinrad, elmid);
+ellowextra = 180 - tangent_intersect_beta([0,hookcy], hookinrad, elmid);
-$bend = 0;
-
-module Howly(acrossly_x, frontbackly_x){
- if (acrossly_x >= 0) {
- translate([acrossly_x,0,0])
- assign($bend = atan(tuberad/$stemlen),
- $frontbackly = 0)
- child();
- }
- if (frontbackly_x >= 0) {
- translate([frontbackly_x,0,0])
- assign($bend = 0,
- $frontbackly = 1)
- child();
- }
-}
-
-module Plan(){
+module ClipPlan(qbend, qstemleny){
dy = tubeheight - tuberad*2;
FArcSegment(0, dy, tuberad, mainoutrad, -1, 181);
- FArcSegment(0, 0, tuberad, mainoutrad, -$bend, $bend+1);
+ FArcSegment(0, 0, tuberad, mainoutrad, -qbend, qbend+1);
translate([tuberad, 0]) square(center=false, size=[mainthick,dy]);
FArcSegment(0, 0, tuberad, tuberad + clipthick, 360-clipang, clipang+1);
- rotate(-$bend) translate([tuberad, 0]) mirror([0,1])
- square(center=false, size=[mainthick, $stemlen/cos($bend)]);
+ rotate(-qbend) translate([tuberad, 0]) mirror([0,1])
+ square(center=false, size=[mainthick, qstemleny/cos(qbend)]);
+}
+
+module Plan(){
+ ClipPlan(bend,stemlen);
}
module ElevationCore(){
- FArcSegment(0, $hookcy, hookinrad, hookoutrad,
- 180 - $ellowextra,
- 90 + hookcurl + $ellowextra);
+ FArcSegment(0, hookcy, hookinrad, hookoutrad,
+ 180 - ellowextra,
+ 90 + hookcurl + ellowextra);
translate([-hookoutrad*sqrt(0.5),
- $hookcy - hookoutrad*sqrt(0.5) + 0.1])
+ hookcy - hookoutrad*sqrt(0.5) + 0.1])
mirror([1,0])
- square(center=false, size=[topwidth, $stemlen + tubeheight + 20]);
- polygon([[-hookoutrad, $ellow[1]],
- reflect_in_y($eltop),
- $eltop,
- $elmid,
- $ellow]);
+ square(center=false, size=[topwidth, stemlen + tubeheight + 20]);
+ polygon([[-hookoutrad, ellow[1]],
+ reflect_in_y(eltop),
+ eltop,
+ elmid,
+ ellow]);
}
// after here is all 3D
translate([-100,-100,0]) cube(center=false,size=[200,200,200]);
}
-taperangle = -270 + tangent_intersect_beta([-$hookcy, 0],
+taperangle = -270 + tangent_intersect_beta([-hookcy, 0],
hookoutrad,
- [-$eltop[1], -$eltop[0]]);
-module Hook(){ ////toplevel
+ [-eltop[1], -eltop[0]]);
+module HookL(){ ////toplevel
difference(){
rotate([taperangle,0,0])
- translate([0,-$eltop[1],0])
+ translate([0,-eltop[1],0])
Primary();
translate([0,0,topwidth/2])
rotate([taperangle*2,0,0])
}
}
-module RightHook(){ ////toplevel
- mirror([1,0,0]) Hook();
+// straight-on version, everything prefixed with s or S
+
+shookcy = -(stemlen-hookoutrad);
+sstemleny = -shookcy;
+sbend_raw = tangents_intersect_beta([0,0],tuberad,
+ [0,shookcy],hookinrad);
+sbend = angle_map_range(360-sbend_raw, -180);
+
+module SPlan(){
+ ClipPlan(sbend, sstemleny);
+ FArcSegment(0,shookcy, hookinrad,hookoutrad,
+ 270 - hookcurl,
+ hookcurl + 90 - sbend);
+}
+
+module SElevation(){
+ boty = shookcy - hookoutrad - 1;
+ polygon([[-1, tubeheight],
+ [topwidth, tubeheight],
+ [topwidth, elmid[1]],
+ [hookwidth, shookcy],
+ [hookwidth, boty],
+ [-1, boty]]);
+}
+
+module SElevationPlaced(){
+ rotate([0,-90,0]) translate([0,0,-100]) linear_extrude(height=200)
+ SElevation();
+}
+
+module SHookL(){ ///toplevel
+ intersection(){
+ linear_extrude(height=topwidth) SPlan();
+ SElevationPlaced();
+ }
+}
+
+// straight-on version, reversed, everything prefixed with t or T
+
+tjoinrad = mainoutrad * 0.7;
+tstem0leny = tuberad - tjoinrad*0.5;
+tjoinoutrad = tjoinrad + mainthick;
+
+thookcy = shookcy;
+
+tjoin0c = [tuberad - tjoinrad, -tstem0leny];
+tjoin1c = [0, thookcy];
+
+tbend_raw = tangents_intersect_beta(tjoin0c, tjoinrad,
+ tjoin1c, -hookoutrad);
+tbend0 = angle_map_range(tbend_raw, 0);
+tbend1 = angle_map_range(tbend_raw + 180, -180);
+
+tbend0p = circle_point(tjoin0c, tjoinrad, tbend_raw);
+tbend1p = circle_point(tjoin1c, -hookoutrad, tbend_raw);
+
+module TPlan(){
+ ClipPlan(0, tstem0leny);
+ FArcSegment(tjoin0c[0],tjoin0c[1], tjoinrad,tjoinoutrad,
+ tbend0, 360-tbend0);
+ FArcSegment(0,shookcy, hookinrad,hookoutrad,
+ tbend1, 270+hookcurl - tbend1);
+ translate(tbend0p) {
+ rotate(tbend_raw+180) mirror([1,0]) {
+ translate([0,-0.1]) square(size=[mainthick, dist2d(tbend0p,tbend1p)+0.2]);
+ }
+ }
+}
+
+module THookR(){ ///toplevel
+ intersection(){
+ linear_extrude(height=topwidth) TPlan();
+ SElevationPlaced();
+ }
+}
+
+// other toplevels etc.
+
+module HookR(){ ////toplevel
+ mirror([1,0,0]) HookL();
+}
+
+module SHookR(){ ////toplevel
+ mirror([1,0,0]) SHookL();
}
-module Bothly() {
- Acrossly() child(0);
- translate([70,0,0]) Frontbackly() child(0);
+module THookL(){ ////toplevel
+ mirror([1,0,0]) THookR();
}
-Howly(0,70) {
- Plan();
- //ElevationCore();
- //RightHook();
+module Demo(){ ////toplevel
+ translate([-30,tubeheight,0]) HookL();
+ translate([ 0,tubeheight,0]) HookR();
+ translate([ 30, 0,0]) SHookL();
+ translate([ 60, 0,0]) SHookR();
+ translate([ 90, 0,0]) THookL();
+ translate([120, 0,0]) THookR();
}
~ianmdlvl / reprap-play.git / blobdiff