phone = [ 75.0, 145.0 ];
+prop_lid_posns = [ 70 ]; // measured from bottom of phone
+
+prop_lengths = [ 80, 50 ];
+
+prop_angle_specs = [
+ // angle prop length index prop lid posn index
+ [ 15, 1, 0 ],
+ [ 30, 1, 0 ],
+ [ 45, 0, 0 ],
+ [ 60, 0, 0 ],
+ ];
+
bumper = [ 0.250, -0.025 ];
// ^ One side. Overall size is increased by twice this.
// If no bumpers, is the gap around the phone.
catch_finger_height = 1.5;
catch_finger_depth = 2.5;
+prop_main_width = 3;
+prop_wing_len = 3;
+prop_nose_slope = 1.5; // bigger means pointier
+prop_side_gap = 0.75; // each side
+prop_fin_height = 1.5;
+prop_fin_width = 0.75;
+prop_max_angle = 45; // bigger means at worse angle
+prop_recess_under = 0.30;
+prop_backfwd_gap = 1.0; // total
+
+prop_recess_slop = 0.125; // each side
+prop_end_dia = 0.5;
+prop_main_th = 3;
+prop_taper_len = 6;
+
// ---------- calculated ----------
phone_width = (phone + bumper*2)[0];
phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
+prop_nose_len = case_th_lid - prop_recess_under;
+prop_recess_slope = tan(prop_max_angle); // bigger means steeper
+prop_recess_depth = case_th_lid - prop_recess_under;
+prop_recess_width = prop_main_th / cos(prop_max_angle) + prop_backfwd_gap;
+
//lid_lip_overlap_width xxx bad name = ;
//lid_lip_inner_slope = [ 5, 5 ]; // xxx
hex23 = hex22 + hingescrew_portion_len
- hingescrew_nut_thick; // bodge, need to divvy this up more sensibly
hex24 = hex20 + hingescrew_shaft_len + hinge_x_postscrew_gap;
-echo(hex20, hex21, hex22, hex23, hex24);
-echo(hingescrew_portion_len);
+//echo(hex20, hex21, hex22, hex23, hex24);
+//echo(hingescrew_portion_len);
// catch
cppV[1] - (catch_finger_height - cp_rQ) ];
cppF = [ cppV[0] + catch_finger_depth, cppC[1] ];
+// prop recess
+
+prp1 = [0,0]; // by definition
+prp2 = prp1 + [ -prop_recess_slope, -1 ] * prop_recess_depth;
+prp4 = prp1 + [1,0] * prop_recess_width;
+prp3 = [ prp4[0], prp2[1] ];
+prp5 = prp4 + [1,0] * prop_recess_depth;
+
+// prop recess in lid
+
+prlp1 = [ lpp10[0] + prop_recess_slop + prop_end_dia/2,
+ lpp10[1] + prop_recess_slop + prop_end_dia/2 ];
+
// ---------- modules ----------
module KeeperProfile(slant=0){
children(0);
}
+module PropRecess(){
+ // origin is nonstandard
+ hwd345 = 0.5*prop_main_width + prop_side_gap;
+ hwd35 = 0.5*prop_fin_width + prop_side_gap;
+ rotate([90,0,90]){
+ linextr(-hwd345, +hwd345)
+ polygon([ prp1,
+ prp2,
+ prp3,
+ prp4,
+ prp4 + [0,10],
+ prp1 + [0,10],
+ ]);
+ linextr(-hwd35, +hwd35)
+ polygon([ prp1,
+ prp3,
+ prp5,
+ prp5 + [0,10],
+ prp1 + [0,10],
+ ]);
+ }
+}
+
+module SomePropProfile(gamma){
+// prop-internal
+ pip1 = [0,0];
+ pip2 = [ 0.5 * (prop_main_th - prop_end_dia),
+ prop_taper_len ];
+
+ translate(prlp1) {
+ circleat([0,0], prop_end_dia/2);
+ cirecleat(pip2, prop_main_th);
+
+ }
+}
+
+module CasePropRecess(pas) {
+ // destructure entry in prop_angle_specs
+ beta = pas[0];
+ b = prop_lengths [ pas[1] ];
+ p = prop_lid_posns[ pas[2]] ;
+
+ k = hp_k;
+ x = k / (2 * sin(beta/2)) - hppT[0];
+ c = p + x;
+
+ // https://en.wikipedia.org/wiki/Solution_of_triangles#Two_sides_and_non-included_angle_given_(SSA) [25.1.18]
+ // we always want the positive solution because it has a closer to c
+ a = c * cos(beta) + sqrt( b*b - pow(c * sin(beta),2) );
+ q = a - x;
+
+ echo(beta, a, b, c);
+
+ Flip_bot(1)
+ translate([ phone_width/2, -q, epp2o[1]-case_th_bottom ])
+ rotate([0,180,0])
+ PropRecess();
+}
+
module CaseBase(){
AroundEdges(epp3[1], case_th_bottom, 1)
EdgeProfile();
// catch striker
CatchPortion(catch_width + catch_side_gap*2)
CatchCutProfile();
+
+ // prop recesses
+ #for (pas = prop_angle_specs)
+ CasePropRecess(pas);
}
}
// screw holes in the hinge arms
HingeScrews();
+
+ // prop recesses
+ Flip_bot(1)
+ for (y = prop_lid_posns)
+ translate([ phone_width/2, -y, lpp13[1] ])
+ PropRecess();
}
}
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
intersection(){
Case();
module TestFrameLidPrint(){ ////toplevel
rotate([0,180,0]) intersection(){
Lid();
- TestSelectFrame();
+ TestSelectLidFrame();
}
}
module DemoFrame(){ ////toplevel
color("red") TestFrameCase();
- color("blue") intersection(){ Lid(); TestSelectFrame(); }
+ color("blue") intersection(){ Lid(); TestSelectLidFrame(); }
color("black") HingeScrews();
%HingeLever();
}
module DemoHingedFrame(){ ///toplevel
color("red") TestFrameCase();
translate([0,0, -2*hp_k])
- color("blue") intersection(){ Lid(); TestSelectFrame(); }
+ color("blue") intersection(){ Lid(); TestSelectLidFrame(); }
Flip_hinge(){
color("orange") HingeLever();
//LidEdgeProfile();
//KeeperProfile();
//DemoProfiles();
+//PropRecess();