fairphone-case: catch adjustments from previow

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

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 9b8f8fb286f6762ffd6dd69f6dfff333beb57517..d1181e673863c45c6c67c46845e24f853da5632e 100644 (file)
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -62,6 +62,8 @@ lid_gap_x = 0.25;
 lid_gap_z = 0.25;
 lid_lip = 1.75;
 
+catch_slop = 0.25;
+
 foldover_gap = 0.50;
 foldover_lever_gap = 0.50;
 
@@ -80,6 +82,8 @@ $fs = 0.1;
 button_l_fudge = 4.4;
 buttonishleg_default_l_is_fudge = 10;
 
+hinge_base_slope = 1.5; // bigger is steeper
+
 strut_min_at_end = 1.5;
 
 hinge_x_gap = 0.125;
@@ -89,6 +93,15 @@ hinge_r_arms_gap = 0.55;
 
 rearspeaker_gap    = [ 1.0, 1.0 ]; // each side
 
+catch_len = 7.5;
+catch_width = 15;
+catch_thickness = 1.0;
+
+catch_depth = 1.25;
+catch_height = 0.35;
+catch_finger_height = 1.5;
+catch_finger_depth = 2.5;
+
 // ---------- calculated ----------
 
 phone_width =  (phone + bumper*2)[0];
@@ -145,9 +158,12 @@ bppJ = [ bppN[0], bppL[1] ];
 
 // hinge plan
 hp_rn = hingescrew_nut_dia/2;
-hp_r2 = hp_rn + lever_cover_th;
+hp_r2_min = hp_rn + lever_cover_th;
 hp_rs = hingescrew_shaft_dia/2;
-hp_r1 = hp_rs + hingemount_th;
+hp_r1_min = hp_rs + hingemount_th;
+
+hp_r1 = max(hp_r1_min, hp_r2_min);
+hp_r2 = hp_r1;
 
 hppU = lpp13;
 hppS = epp2o + [0,-1] * case_th_bottom;
@@ -158,6 +174,10 @@ hppM = [ epp4[0] - foldover_lever_gap - hp_r2,
 hppT = [ hppM[0], hppU[1] - hp_r1 ];
 hppB = hppT + [0,-1] * hp_k;
 
+hppE_y = epp2o[1] - case_th_bottom + hp_r1;
+hppE_x = hppB[0] + (hppB[1] - hppE_y) * hinge_base_slope;
+hppE = [ hppE_x, hppE_y ];
+
 // hinge elevation x coords
 
 hingescrew_portion_len =
@@ -173,6 +193,27 @@ hex24 = hex20 + hingescrew_shaft_len + hinge_x_postscrew_gap;
 echo(hex20, hex21, hex22, hex23, hex24);
 echo(hingescrew_portion_len);
 
+// catch
+
+cppJ = [ epp4[0] + catch_thickness, lpp10[1] ];
+cppA = cppJ + [lid_gap_x, -lid_gap_z];
+cppB = [ epp0[0], cppA[1] ];
+cppP = [ epp4[0], cppJ[1] ];
+
+cppS = cppJ + [0,-1] * catch_len;
+cppD = [ cppA[0], cppS[1] + catch_slop ];
+cppC = [ cppB[0], cppD[1] ];
+cppT = cppS + [1,0] * catch_depth;
+cppU = cppT + [0,-1] * catch_height;
+cppV = [ cppS[0], cppU[1] - catch_depth ];
+
+cppR = 0.5*(cppP + cppJ);
+
+cp_rQ = 0.5 * (cppJ[0] - cppP[0]);
+cppQ = [ cppR[0],
+        cppV[1] - (catch_finger_height - cp_rQ) ];
+cppF = [ cppV[0] + catch_finger_depth, cppC[1] ];
+
 // ---------- modules ----------
 
 module KeeperProfile(slant=0){
@@ -266,6 +307,31 @@ module ButtonPlan(l, deep, cut){
   }
 }
 
+module CatchCatchProfile(){
+  hull(){
+    for (c=[ cppR, cppQ ])
+      circleat(c, cp_rQ);
+  }
+  hull(){
+    circleat(lpp12, lp_r12);
+    circleat(lpp12 + [5,0], lp_r12);
+    rectfromto(cppP, cppP + [5,0.1]);
+  }
+  polygon([cppJ, cppS, cppT, cppU, cppV, cppQ, cppR]);
+}
+
+module CatchCutProfile(){
+  polygon([ cppB,
+           cppA,
+           cppD,
+           cppF,
+           cppF + [0,-10],
+           cppF + [-10,-10],
+           lpp12 + [-10,0],
+           lpp12 + [10,0]
+           ]);
+}
+
 module Flip_rhs(yn=[0,1]) {
   for ($rhsflip=yn) {
     translate([phone_width/2, 0, 0])
@@ -433,6 +499,7 @@ module HingeBaseProfile(){
   difference(){
     hull(){
       circleat(hppB, hp_r1);
+      circleat(hppE, hp_r1);
       circleat(epp2o, case_th_bottom);
       circleat(hppB + [10,0], hp_r1);
     }
@@ -828,6 +895,14 @@ module DemoProfiles(){ ////toplevel
     color("black") translate([0,0,-2]) HingeLeverOuterProfile();
     color("orange") translate([0,0,-1]) HingeLeverInnerProfile();
   }
+
+  translate([20,-30]) {
+    %EdgeProfile();
+    %LidEdgeProfile();
+    //translate([0,0,1]) CatchCutProfile();
+    color("blue") CatchCatchProfile();
+    color("red") difference(){ EdgeProfile(); CatchCutProfile(); }
+  }
 }
 
 //EdgeProfile();