fairphone-case: wip hinge, HingerBaseProfile

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

diff --git a/fairphone-case.scad b/fairphone-case.scad
index f2352316e3dcae6783ec837d71d6e2edc4912372..da109ffd0f6fbc9ee8ecdd95be3589be93981594 100644 (file)
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -1,5 +1,7 @@
 // -*- C -*-
 
+include <utils.scad>
+
 phone = [ 75.0, 145.0 ];
 
 bumper = [ 0.250, -0.025 ];
@@ -59,8 +61,10 @@ lid_lip = 1.75;
 foldover_gap = 0.50;
 foldover_hinger_gap = 0.50;
 
+hingescrew_shaft_dia = 2.0 + 0.25; // M2 x 12mm machine screw
 hingescrew_nut_dia = 4.72 + 0.50; // washer, actually
 hinger_th = 2;
+hingemount_th = 2.5;
 
 $fa = 5;
 $fs = 0.1;
@@ -127,11 +131,13 @@ bppK = [ bppL[0], bppN[1] ];
 bppJ = [ bppN[0], bppL[1] ];
 
 // hinge plan
-hp_rn = hingescrew_nut_dia;
+hp_rn = hingescrew_nut_dia/2;
 hp_r2 = hp_rn + hinger_th;
+hp_rs = hingescrew_shaft_dia/2;
+hp_r1 = hp_rs + hingemount_th;
 
 hppU = lpp13;
-hppS = epp2o[1] + [0,-1] * case_th_bottom;
+hppS = epp2o + [0,-1] * case_th_bottom;
 hp_k = 0.5 * (hppU[1] - hppS[1] + foldover_gap);
 
 hppM = [ epp4[0] - foldover_hinger_gap - hp_r2,
@@ -139,17 +145,7 @@ hppM = [ epp4[0] - foldover_hinger_gap - hp_r2,
 hppT = hppM + 0.5 * [0,+1] * hp_k;
 hppB = hppM + 0.5 * [0,-1] * hp_k;
 
-module rectfromto(a,b) {
-  ab = b - a;
-  translate([min(a[0], b[0]), min(a[1], b[1])])
-    square([abs(ab[0]), abs(ab[1])]);
-}
-module circleat(c,r) { translate(c) circle(r); }
-module linextr(z0,z1) {
-  translate([0,0,z0])
-    linear_extrude(height=z1-z0)
-    children();
-}
+// ---------- modules ----------
 
 module KeeperProfile(slant=0){
   use_e = kppe + [0,-1] * slant * keeper_inner_width / keeper_slant_slope;
@@ -383,6 +379,28 @@ module RearCameraAperture(){
     rectfromto(camera_pos_tl, camera_pos_br);
 }
 
+module HingeLidProfile(){
+  hull(){
+    circleat(hppT, hp_r1);
+    circleat(lpp12, lp_r12);
+    polygon([lpp10,
+            lpp13 + [2,0],
+            lpp12,
+            hppT]);
+  }
+}
+
+module HingeBaseProfile(){
+  difference(){
+    hull(){
+      circleat(hppB, hp_r1);
+      circleat(epp2o, case_th_bottom);
+      circleat(hppB + [10,0], hp_r1);
+    }
+    polygon([epp5, epp1, epp2i, epp3, bppL]);
+  }
+}
+
 module CaseBase(){
   AroundEdges(epp3[1], case_th_bottom, 1)
     EdgeProfile();
@@ -489,6 +507,14 @@ module TestLength(){ ////toplevel
   }
 }
 
+module TestLengthRight(){ ////toplevel
+  intersection(){
+    Case();
+    CaseBase_rhsflip(1)
+      TestSelectLength();
+  }
+}
+
 module TestSelectWidth(){
   translate([-30, -(phone_height - 25), -20])
     mirror([0, 1, 0])
@@ -633,6 +659,13 @@ module DemoProfiles(){ ////toplevel
     color("red" )  ButtonPlanForDemo(-4, 1,1);
     color("blue")  ButtonPlanForDemo(-6, 1,0);
   }
+
+  translate([0, -30]) {
+    %LidEdgeProfile();
+    %EdgeProfile();
+    color("blue") HingeLidProfile();
+    color("red")  HingeBaseProfile();
+  }
 }
 
 //EdgeProfile();