prop_taper_len = 6;
prop_main_width = 3;
prop_side_gap = 0.75; // each side
+prop_lidrecess_behind = 0.75;
prop_caserecess_behind = 0.75;
-prop_caserecess_taper = 0.25; // each side
+prop_caserecess_taper = 0.45; // one side only
+prop_prop_gap = 0.5;
+prop_prong_heel_slope = 0.5;
// ---------- calculated ----------
inside_br = [phone_width, -phone_height];
+prop_prong_h = prop_main_th;
+
//echo(camera_pos_tl + bumper,
// camera_pos_br + bumper);
prop_caserecess_buildout_r = -1; // prcp2[0] - epp2o[0];
-echo(prc_r3);
-
prcp1 = [ epp2o[0],
epp2i[1] - prc_r3 ];
+// prop recess in lid
+
+prl_r10 = prop_end_dia/2;
+prl_r10o = prl_r10 + prop_recess_slop;
+
+prlp10 = lpp10 + [1,1] * prl_r10o
+ + [1,0] * prop_lidrecess_behind
+ + [0,1] * prop_recess_under;
+
+// prop
+
+$prpp10 = [0,0];
+$prpp11 = [0, prop_taper_len];
+
+$prp_r10 = prl_r10;
+
// ---------- modules ----------
module KeeperProfile(slant=0){
EdgeProfile();
}
+function prop_x(gamma) = hp_k / (2 * sin(gamma/2)) - hppT[0];
+
+module PropProfileAssignments(gamma){
+ // https://en.wikipedia.org/wiki/Solution_of_triangles#Two_sides_and_the_included_angle_given_(SAS)
+ x = prop_x(gamma);
+ p = phone_height - prlp10[0] - hppB[0];
+ b = p + x;
+
+ q = phone_height - hppT[0]; // $prpp7[0] is 0 by definition
+ a = q + x;
+ c = sqrt(a*a + b*b - 2*a*b*cos(gamma));
+ $prp_alpha = acos( (b*b + c*c - a*a) / (2*b*c) );
+
+ $prp_theta = 90 - $prp_alpha;
+ beta = 180 - $prp_alpha - gamma;
+ psi = 90 - beta;
+
+ //echo("abc", a,b,c);
+
+ v1 = [ [ cos(psi), -sin(psi) ], // x
+ [ sin(psi), cos(psi) ] ]; // y
+
+ $prpp7 = [0, c + (lpp13[1] - $prpp10[1]) ];
+
+ $prp_r1 = prc_r1;
+ $prp_r11 = prop_main_th/2;
+
+ $prpp1 = $prpp7 + [1,0] *
+ // this is approximate, but will do
+ (prop_main_th/2 + prop_prop_gap + prcp1[0] - epp4[0]);
+ $prpp3 = $prpp1 +
+ v1[0] * -$prp_r1 +
+ v1[1] * ((prcp2[1] - prcp1[1]) - prop_prop_gap);
+ $prpp12 = $prpp3 + v1[0] *
+ (prop_end_dia + prop_caserecess_taper * ($prpp1[1] - $prpp3[1]));
+ $prp_r8 = prop_main_th;
+ $prpp4 = [ prop_main_th/2, $prpp3[1] ];
+ $prp_r5 = $prp_r8;
+ $prpp5 = [ $prpp12[0] - $prp_r5,
+ $prpp3[1] - prop_prong_h + $prp_r5 ];
+ $prpp6 = $prpp4 + [0,-1] * (prop_prong_h +
+ prop_prong_heel_slope * ($prpp5[0] - $prpp4[0]));
+ $prpp8 = $prpp4 + [0,-1] * $prp_r8;
+ $prpp9 = $prpp8 + [-1,0] * $prp_r8;
+
+ children();
+}
+
+module PropProfile(gamma, cut=0, rot=0){ ////toplevel
+ PropProfileAssignments(gamma){
+
+ //#circleat($prpp3,1);
+ //#circleat($prpp12,1);
+
+ if (!cut) {
+ hull(){
+ translate($prpp8)
+ intersection(){
+ circle($prp_r8);
+ polygon([[-20,-0], [0,0], [20,20]]);
+ }
+ rectfromto($prpp6, $prpp9);
+ translate($prpp5) intersection(){
+ circle($prp_r5);
+ polygon([[-10,-10], [0,0], [10,0]]);
+ }
+ rectfromto($prpp12 + [0,-0.1], $prpp3);
+ }
+ hull(){
+ circleat($prpp1, $prp_r1);
+ rectfromto($prpp12 + [0,-0.1], $prpp3);
+ }
+ }
+ // main shaft
+ rotate([0,0, rot*-$prp_theta]){
+ hull(){
+ extra = cut ? prop_recess_slop : 0;
+ rectfromto($prpp6, $prpp9);
+ circleat($prpp11, $prp_r11 + extra);
+ circleat($prpp10, $prp_r10 + extra);
+ }
+ }
+ }
+}
+
+module PropAggregateProfile(){
+ for (angle = prop_angles)
+ PropProfile(angle, 0,0);
+}
+
+module Prop(){ ////toplevel
+ hw = prop_main_width/2;
+ linextr(-hw, +hw)
+ PropAggregateProfile();
+}
+
module Case(){ ////toplevel
difference(){
union(){
// screw holes in the hinge arms
HingeScrews();
+
+ // prop recess
+ translate([prop_x_pos, -prlp10[0], prlp10[1]])
+ rotate([90,0,90])
+ linextr(-prop_recess_hw, +prop_recess_hw)
+ mirror([1,0])
+ hull()
+ for (pa = prop_angles)
+ PropProfile(pa, 1,1);
}
}
Lid();
}
-module TestSelectPropRecesses(posns){
- linextr(-100,100){
- translate([phone_width/2, -phone_height]){
- square([ 3, 500 ], center=true);
- for (y=posns)
- hull()
- for (dy=[ -prp5[0], -prp2[0] ])
- translate([0,y+dy])
- square([prop_main_width+5, 5], center=true);
- }
- }
-}
-
module TestSelectFrame(){
include = [1,-1] * (epp2i[0] + 4);
module TestSelectLidFrame(){
TestSelectFrame();
- TestSelectPropRecesses(prop_lid_posns);
}
module TestFrameCase(){ ////toplevel
}
}
+module DemoPropAngleSelect(c){
+ color(c) difference(){
+ union(){ children(); }
+ translate([ prop_x_pos, -400, -200 ])
+ cube([ 400,800,400 ]);
+ }
+}
+
+module DemoPropAngle(ang){
+ hL = [0, -(phone_height - hppT[0]), hppT[1] - hp_k*2];
+ hC = [0, -(phone_height - hppB[0]), hppB[1]];
+
+ translate(hL)
+ rotate([ang/2,0,0])
+ translate(-hL)
+ translate(hC)
+ rotate([ang/2,0,0])
+ translate(-hC) {
+ DemoPropAngleSelect("red") Case();
+
+ color("orange")
+ translate([prop_x_pos, -prcp1[0], prcp1[1]])
+ rotate([90,0,-90])
+ Prop();
+ }
+
+ translate([0,0, -hp_k*2])
+ DemoPropAngleSelect("blue") Lid();
+}
+
+module DemoPropAngles(){ ////toplevel
+ DemoPropAngle(15);
+}
+
module DemoFrame(){ ////toplevel
color("red") TestFrameCase();
color("blue") intersection(){ Lid(); TestSelectLidFrame(); }
color("blue") CatchCatchProfile();
color("red") difference(){ EdgeProfile(); CatchCutProfile(); }
}
+
+ translate([40,-30]) {
+ difference(){
+ LidEdgeProfile();
+ translate(prlp10)
+ PropProfile(10, 1, 0);
+ }
+ translate(prlp10)
+ PropProfile(15, 0);
+ }
+ translate([60,-30]) {
+ PropAggregateProfile();
+ }
}
//EdgeProfile();
~ianmdlvl / reprap-play.git / blobdiff