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 ],
- ];
+prop_angles = [ 15, 30, 45, 60 ];
bumper = [ 0.250, -0.025 ];
// ^ One side. Overall size is increased by twice this.
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_recess_under = 0.50;
+prop_recess_slop = 0.200; // each side
prop_end_dia = 0.5;
prop_main_th = 3;
prop_taper_len = 6;
+prop_main_width = 3;
+prop_side_gap = 0.75; // each side
+prop_caserecess_behind = 0.75;
+prop_caserecess_taper = 0.25; // each side
+prop_x_pos = 30;
// ---------- calculated ----------
phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
+prop_lidrecess_depth = case_th_lid - prop_recess_under;
+
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
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
+prl_r1 = prop_end_dia/2 + prop_recess_slop; // radius of end
+
prlp1 = [ lpp10[0] + prop_recess_slop + prop_end_dia/2,
lpp10[1] + prop_recess_slop + prop_end_dia/2 ];
+// prop recess in case
+
+prcp2 = [ epp1[0], case_bottom_z ]; // protrusion corner
+
+prc_r2 = prop_end_dia/2 + prop_recess_slop; // radius of end
+
+prcp1_y = epp2o[1] - prop_recess_under - prc_r2;
+prcp2_x = prcp2[0] + prop_caserecess_behind + prc_r2 +
+ (prcp1_y - case_bottom_z) * prop_caserecess_taper;
+prcp2 = [ prcp1_x, prcp1_y ]; // centre of tip circle
+
+prop_recess_hw = 0.5 * prop_main_width + prop_side_gap;
+
+prop_caserecess_buildout_r = prcp2[0] - epp2o[0];
+
// ---------- 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, case_bottom_z ])
- rotate([0,180,0])
- PropRecess();
-}
-
module CaseBase(){
AroundEdges(epp3[1], case_th_bottom, 1)
EdgeProfile();
linear_extrude(height= 20)
ButtonPlan($button_l, 1,1);
}
+
+ // buildout for prop recess
+ Flip_rhs(1)
+ linextr(-case_th_bottom, epp2i)
+ hull() {
+ for (dxs = [-1,+1])
+ circleat([ prop_x_pos + dxs * prop_caserecess_buildout_r,
+ epp2o[0] ]);
+ }
}
// apertures along top edge
CatchPortion(catch_width + catch_side_gap*2)
CatchCutProfile();
- // prop recesses
- #for (pas = prop_angle_specs)
- CasePropRecess(pas);
+ // prop recess
+ Flip_rhs(1)
+ translate([0,0,x])
+ rotate([90,0,90])
+ linextr(-prop_recess_hw, +prop_recess_hw)
+ hull(){
+ for (zs=[ -1,0,+1 ])
+ circleat(prcp2 + 20*(abs(zs) * [0,-1] +
+ zs * [1,0] * prop_caserecess_taper),
+ pr_r2);
+ }
}
}
// 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();
}
}