fairphone-case: wip prop profile, fixes

[reprap-play.git] / fairphone-case.scad

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 5ade84ab54bbd576d04d2a6381669717bc76789c..a4fc59fab1efa35304efbc36f758338cef5873db 100644 (file)
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -119,10 +119,11 @@ prop_main_th = 3;
 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 = 0.35; // one side only
 prop_prop_gap = 0.5;
-prop_prong_heel_slope = 1.0;
+prop_prong_heel_slope = 0.5;
 
 // ---------- calculated ----------
 
@@ -262,8 +263,6 @@ prcp2 = [ epp4[0] + prop_buildout_less,
 
 prop_caserecess_buildout_r = -1; // prcp2[0] - epp2o[0];
 
-echo(prc_r3);
-
 prcp1 = [ epp2o[0],
          epp2i[1] - prc_r3 ];
 
@@ -272,13 +271,17 @@ prcp1 = [ epp2o[0],
 prl_r10 = prop_end_dia/2;
 prl_r10o = prl_r10 + prop_recess_slop;
 
-prlp10 = lpp10 + [1,1] * prl_r10a;
+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){
@@ -621,6 +624,7 @@ module CaseBase(){
 
 module PropProfile(gamma, cut=0){ ////toplevel
   // https://en.wikipedia.org/wiki/Solution_of_triangles#Two_sides_and_the_included_angle_given_(SAS)
+  k = hp_k;
   p = phone_height - prlp10[0] - hppB[0];
   x = k / (2 * sin(gamma/2)) - hppT[0];
   b = p + x;
@@ -633,44 +637,58 @@ module PropProfile(gamma, cut=0){ ////toplevel
   theta = 90 - alpha;
   beta = 180 - alpha - gamma;
   psi = 90 - beta + atan(prop_caserecess_taper);
-  prpv1 = [ sin(psi), cos(psi) ];
+
+  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 = prp_main_th/2;
+  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] - prcp1[1]);
-  prpp3 = prpp1 + [ -prp_r1,
-                   (prcp2[1] - prcp1[1]) - prop_prop_gap ];
+    (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 = prop_end_dia/2;
-  prpp5 = [ prpp1[0], prpp3[1] - prop_prong_h + prp_r5 ];
+  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]));
-  prp_r8 = prop_main_th/2;
   prpp8 = prpp4 + [0,-1] * prp_r8;
   prpp9 = prpp8 + [-1,0] * prp_r8;
-  prpp12 = prpp3 + [0,1] * prop_end_dia;
+
+  //#circleat(prpp3,1);
+  //#circleat(prpp12,1);
 
   if (!cut) {
     hull(){
       translate(prpp8)
        intersection(){
          circle(prp_r8);
-         rectfromto([-20,-0], [20,20]);
+         polygon([[-20,-0], [0,0], [20,20]]);
         }
       rectfromto(prpp6, prpp9);
-      circleat(prpp5, prp_r5);
+      translate(prpp5) intersection(){
+       circle(prp_r5);
+       polygon([[-10,-10], [0,0], [10,0]]);
+      }
       rectfromto(prpp12 + [0,-0.1], prpp3);
     }
-    hull(){
+    %hull(){
       circleat(prpp1, prp_r1);
       rectfromto(prpp12 + [0,-0.1], prpp3);
     }
   }
+  // main shaft
   rotate([0,0, cut ? -theta : 0]){
     hull(){
       extra = cut ? prop_recess_slop : 0;
@@ -1090,8 +1108,13 @@ module DemoProfiles(){ ////toplevel
   }
 
   translate([40,-30]) {
-    %LidEdgeProfile();
-    PropProfile(10, 0);
+    difference(){
+      %LidEdgeProfile();
+      //translate(prlp10)
+       //PropProfile(10, 1);
+    }
+    translate(prlp10)
+      PropProfile(60, 0);
   }
 }