X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=fairphone-case.scad;h=0b73f657e2654df6e58b460341ae5a69d2bda72f;hp=a9f199a365a0543bb834ac82ea004c7043bb5773;hb=881387d225eb39aab986d4a605aeca9b379c309d;hpb=f72bb4bf9bf38fdbf4664fa43fbcb091ed4b19ad

diff --git a/fairphone-case.scad b/fairphone-case.scad
index a9f199a..0b73f65 100644
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -1,6 +1,6 @@
 // -*- C -*-
 
-phone_height = 146.5 - .80;
+phone_height = 146.5;
 phone_width = 76.75;
 
 phone_cnr_rad = 6.0;
@@ -13,7 +13,7 @@ phone_backside_slope_inner = 1.5; // larger means shallower
 phone_backside_slope_outer = 1.0; // larger means shallower
 
 camera_pos_tl = [  7.0, 13.0 ]; // measured from tl corner
-camera_pos_br = [ 24.0, 39.5 ]; // tl/br as seen from back
+camera_pos_br = [ 22.85,37.85]; // tl/br as seen from back
 
 case_th_bottom = 2.5;
 case_th_lid = 2.5;
@@ -21,14 +21,15 @@ case_th_side = 2;
 case_th_lip = 1.2;
 
 case_struts_count = 6;
-case_struts_solid_below = 0.75;
-case_struts_solid_above = 1.00;
+case_struts_solid_below = 1.00;
+case_struts_solid_above = 0.75;
 case_struts_width = 0.10;
 
 keeper_th_z = 0.75;
 keeper_th_x = 0.75;
-keeper_inner_width = 1.75;
-keeper_inner_height = 1.75;
+keeper_inner_width = 2.75;
+keeper_inner_height = 2.75;
+keeper_slant_slope = 2; // larger means steeper
 
 keeper_gap_z_top = 0.25;
 keeper_gap_z_bot = 0.75;
@@ -46,6 +47,8 @@ $fs = 0.1;
 
 button_l_fudge = 4.5;
 
+strut_min_at_end = 1.5;
+
 // ---------- calculated ----------
 
 // ----- could be changed -----
@@ -74,8 +77,13 @@ kppa = [ kppb[0], kppf[1] ];
 
 lpp10 = [ epp5[0] + lid_gap_x, kppc[1] + lid_gap_z ];
 lpp11 = [ lpp10[0],            epp5[1] + lid_gap_z ];
-lpp12 = [ epp4[0] + lid_lip,   lpp11[1] ];
-lpp13 = [ lpp12[0],            lpp12[1] + lid_lip ];
+
+lp_r12 = case_th_lid - (lpp11[1] - lpp10[1]);
+
+lpp12 = [ epp4[0] + lp_r12,    lpp11[1] ];
+lpp13 = [ lpp12[0],            lpp12[1] + lp_r12 ];
+
+echo(lpp13 - lpp10);
 
 // button profile
 bppM = epp4 + [0,5];
@@ -96,8 +104,9 @@ module rectfromto(a,b) {
 }
 module circleat(c,r) { translate(c) circle(r); }
 
-module KeeperProfile(){
-  polygon([kppe, kppd, kppc, kppb, kppa, kppf]);
+module KeeperProfile(slant=0){
+  use_e = kppe + [0,-1] * slant * keeper_inner_width / keeper_slant_slope;
+  polygon([use_e, kppd, kppc, kppb, kppa, kppf]);
 }
 
 module EdgeProfile(){
@@ -124,7 +133,7 @@ module LidEdgeProfile(){
 	    lpp10 + [10, 0]
 	    ]);
   intersection(){
-    circleat(lpp12, r=lid_lip);
+    circleat(lpp12, r=lp_r12);
     rectfromto( lpp12 + [-10,   0],
 		lpp12 + [+10, +10] );
   }
@@ -238,6 +247,36 @@ module AroundEdges(fill_zstart, fill_th, fill_downwards=0){
 	       [phone_width, -phone_height] + [-1,+1] * phone_cnr_rad);
 }
 
+module SideButton(y,l){
+  $button_l= l;
+  translate([0, -y, 0])
+    mirror([1,0,0])
+    rotate([90,0,90])
+    children();
+}
+
+module Buttons(){
+  CaseBase_rhsflip([1]) SideButton(20.6, 8.8) children(); // power
+}
+
+module Struts(x_start, z_min, th){
+  // if th is negative, starts at z_min and works towards -ve z
+  // and object should then be printed other way up
+  for (i= [1 : 1 : case_struts_count]) {
+    translate([0,
+	       0,
+	       z_min])
+      mirror([0,0, th<0 ? 1 : 0])
+      translate([0,
+		 -phone_height * i / (case_struts_count+1),
+		 case_struts_solid_below])
+      linear_extrude(height= abs(th)
+		     -(case_struts_solid_below+case_struts_solid_above))
+      rectfromto([               x_start, -0.5 * case_struts_width ],
+		 [ phone_width - x_start, +0.5 * case_struts_width ]);
+  }
+}
+
 module CaseBase(){
   AroundEdges(epp3[1], case_th_bottom, 1)
     EdgeProfile();
@@ -252,7 +291,7 @@ module Case(){ ////toplevel
       intersection(){
 	rotate([90, 0, 0])
 	  linear_extrude(height = phone_height + phone_cnr_rad * 2)
-	  KeeperProfile();
+	  KeeperProfile(1);
 
 	// outline of the whole case, to stop it protruding
 	translate([0,0, -25])
@@ -283,21 +322,27 @@ module Case(){ ////toplevel
       rectfromto(camera_pos_tl, camera_pos_br);
 
     // struts (invisible, because they're buried in the case)
-    for (i= [1 : 1 : case_struts_count]) {
-      translate([0,
-		 -phone_height * i / (case_struts_count+1),
-		 epp2i[1] - case_th_bottom + case_struts_solid_below])
-	linear_extrude(height= case_th_bottom
-		       -(case_struts_solid_below+case_struts_solid_above))
-	rectfromto([               epp2i[0], -0.5 * case_struts_width ],
-		   [ phone_width - epp2i[0], +0.5 * case_struts_width ]);
+    Struts(epp2i[0], epp2i[1] - case_th_bottom, case_th_bottom);
+
+    Buttons(){
+      translate([0,0,-10])
+	linear_extrude(height= 20)
+	ButtonPlan($button_l, 0,1);
+      translate([0,0, -bppR[0]])
+	linear_extrude(height= 20)
+	ButtonPlan($button_l, 1,1);
     }
   }
 }
 
 module Lid(){ ////toplevel
-  AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
-    LidEdgeProfile();
+  difference(){
+    union(){
+      AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
+        LidEdgeProfile();
+    }
+    Struts(lpp10[0] + strut_min_at_end, lpp13[1], -case_th_lid);
+  }
 }
 
 module TestLength(){ ////toplevel
@@ -366,6 +411,7 @@ module DemoProfiles(){ ////toplevel
   LidEdgeProfile();
   %EdgeProfile();
   KeeperProfile();
+  translate([0,0,-1]) color("black") KeeperProfile(1);
 
   translate([20,0]) {
     LidEdgeProfile();