X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=fairphone-case.scad;h=81d2dfd41df9854134830e7c62e9bc339759cf43;hb=4ff1546cbf420e353cf1079a4c77d0881b770628;hp=c0aae507e7a8a0cdd8cbe28e03fb50d3e9364eac;hpb=abe9c8d4d2dd6af02ee909ec35ff06dfceb67d68;p=reprap-play.git

diff --git a/fairphone-case.scad b/fairphone-case.scad
index c0aae50..81d2dfd 100644
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -3,20 +3,28 @@
 phone_height = 146.5 - .80;
 phone_width = 76.75;
 
-phone_cnr_rad = 4.0;
+phone_cnr_rad = 6.0;
+
+button_cutout_depth = 9;
 
 phone_edge_thick = 9.0;
 phone_total_thick = 12.0;
-phone_backside_slope = 1.0; // larger means shallower
+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
 
-case_th_bottom = 2;
-case_th_lid = 2;
+case_th_bottom = 2.5;
+case_th_lid = 2.5;
 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_width = 0.10;
+
 keeper_th_z = 0.75;
 keeper_th_x = 0.75;
 keeper_inner_width = 1.75;
@@ -38,6 +46,10 @@ $fs = 0.1;
 
 // calculated
 
+// could be changed
+lid_buttoncover_gap = lid_gap_x;
+lid_buttoncover_overlap = case_th_lip + keeper_gap_z_top;
+
 phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
 
 //lid_lip_overlap_width xxx bad name = ;
@@ -45,8 +57,9 @@ phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
 
 epp0 = [0,0];
 epp1 = [0, -phone_edge_thick];
-epp2 = epp1 + phone_backside_slope_thick * [ phone_backside_slope, -1 ];
-epp3 = epp2 + [10, 0];
+epp2i = epp1 + phone_backside_slope_thick * [ phone_backside_slope_inner, -1 ];
+epp2o = epp1 + phone_backside_slope_thick * [ phone_backside_slope_outer, -1 ];
+epp3 = epp2i + [10, 0];
 epp5 = epp0 + [0,1] * (keeper_th_z + keeper_gap_z_top + case_lip);
 epp4 = epp5 + [-1,0] * case_th_side;
 
@@ -62,6 +75,17 @@ lpp11 = [ lpp10[0],            epp5[1] + lid_gap_z ];
 lpp12 = [ epp4[0] + lid_lip,   lpp11[1] ];
 lpp13 = [ lpp12[0],            lpp12[1] + lid_lip ];
 
+bppM = epp4 + [0,1] * lid_gap_z;
+bppN = [ 0.5 * (epp0[0] + epp4[0]), bppM[1] ];
+bppR = [ bppN[0] + lid_buttoncover_gap, -button_cutout_depth ];
+bppS = [ epp1[0], bppR[1] ];
+bppQ = [ bppM[0], bppR[1] - lid_buttoncover_overlap ];
+bppP = bppQ + [0,1] * lid_buttoncover_gap;
+bppO = [ bppN[0], bppP[1] ];
+bppL = lpp10 + [1,0];
+bppK = [ bppL[0], bppN[1] ];
+bppJ = [ bppN[0], bppL[1] ];
+
 module rectfromto(a,b) {
   ab = b - a;
   translate([min(a[0], b[0]), min(a[1], b[1])])
@@ -77,13 +101,13 @@ module EdgeProfile(){
   difference(){
     hull(){
       translate(epp3) square(case_th_bottom*2, center=true);
-      circleat(epp2, r=case_th_bottom);
+      circleat(epp2o, r=case_th_bottom);
       circleat(epp1, r=case_th_side);
       rectfromto(epp0, epp4);
     }
     polygon([ epp5 + [0,10],
 	      epp1,
-	      epp2,
+	      epp2i,
 	      epp3 + [10,0] ]);
   }
 }
@@ -103,6 +127,19 @@ module LidEdgeProfile(){
   }
 }
 
+module ButtonCoverProfile(){
+  intersection(){
+    polygon([ bppM, bppP, bppO, bppJ, bppL, bppK ]);
+    *hull(){
+      EdgeProfile();
+      LidEdgeProfile();
+    }
+  }
+}
+
+module ButtonPlan(){
+}
+
 module CaseBase_rhsflip(yn=[0,1]) {
   for (rhs=yn) {
     translate([phone_width/2, 0, 0])
@@ -168,12 +205,20 @@ module Case(){ ////toplevel
   difference(){
     union(){
       CaseBase();
+
+      // ledge (fixed keeper)
       intersection(){
 	rotate([90, 0, 0])
 	  linear_extrude(height = phone_height + phone_cnr_rad * 2)
 	  KeeperProfile();
-	hull()
-	  CaseBase();
+
+	// outline of the whole case, to stop it protruding
+	translate([0,0, -25])
+	  linear_extrude(height = 50)
+	  hull()
+	  // CaseBase_rhsflip() // actually, we only care about the LH
+	  CaseBase_botflip()
+	  circleat([+1,-1] * phone_cnr_rad, phone_cnr_rad + case_th_side/2);
       }
     }
 
@@ -194,6 +239,17 @@ module Case(){ ////toplevel
       linear_extrude(height = 20)
       mirror([0, 1, 0])
       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 ]);
+    }
   }
 }
 
@@ -219,6 +275,16 @@ module TestWidth(){ ////toplevel
   }
 }
 
+module TestLidWidthPrint(){ ////toplevel
+  rotate([0,180.0])
+    intersection(){
+      Lid();
+      translate([-30, -(phone_height - 25), -20])
+	mirror([0, 1, 0])
+	cube([200, 50, 40]);
+    }
+}
+
 module TestCamera(){ ////toplevel
   intersection(){
     Case();
@@ -252,6 +318,19 @@ module DemoProfiles(){ ////toplevel
   LidEdgeProfile();
   %EdgeProfile();
   KeeperProfile();
+
+  translate([20,0]) {
+    LidEdgeProfile();
+    %EdgeProfile();
+
+    demopoint_QR = [ bppS[0], bppQ[1] - 0.1];
+  
+    color("blue") ButtonCoverProfile();
+    color("red") {
+      rectfromto(bppQ, demopoint_QR);
+      rectfromto(bppR, demopoint_QR);
+    }
+  }
 }
 
 //EdgeProfile();