// -*- C -*-
include <funcs.scad>
-
-module FArcSegment_mask(beta) {
- for (i=[0 : 0.75 : 3]) {
- rotate(i*beta/4)
- polygon([[0, 0],
- [1, 0],
- [cos(beta/4), sin(beta/4)]]);
- }
-}
-
-module FArcSegment(xc,yc,inrad,outrad,alpha,delta) {
- translate([xc,yc]) {
- intersection() {
- difference() {
- circle(r=outrad, $fn=70);
- circle(r=inrad, $fn=70);
- }
- rotate(alpha) scale(outrad*2) {
- FArcSegment_mask(delta);
- }
- }
- }
-}
+include <utils.scad>
tubeslop = 0.5;
tubeheight = 30 + tubeslop;
[-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();
- rotate([0,-90,0]) translate([0,0,-100]) linear_extrude(height=200)
- SElevation();
+ SElevationPlaced();
}
}
// straight-on version, reversed, everything prefixed with t or T
-tjoinrad = 5;
+tjoinrad = mainoutrad * 0.7;
+tstem0leny = tuberad - tjoinrad*0.5;
tjoinoutrad = tjoinrad + mainthick;
thookcy = shookcy;
-tstem0leny = tuberad;
tjoin0c = [tuberad - tjoinrad, -tstem0leny];
tjoin1c = [0, thookcy];
tbend_raw = tangents_intersect_beta(tjoin0c, tjoinrad,
tjoin1c, -hookoutrad);
-echo(tbend_raw);
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.
mirror([1,0,0]) SHookL();
}
+module THookL(){ ////toplevel
+ mirror([1,0,0]) THookR();
+}
+
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();
}