fairphone-case: wip, have EdgeProfile

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 11074a4559ac7ba4d265522785da6247db4fb1a5..d6a50d5d4672da670f0eb3b145b54df34f104642 100644 (file)
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -1,33 +1,54 @@
 // -*- C -*-
 
-phone_edge_thick = ;
-phone_total_thick = ;
+phone_edge_thick = 9.0;
+phone_total_thick = 12.0;
 phone_backside_slope = 1.0; // larger means shallower
 
+case_th_bottom = 2;
+case_th_lid = 2;
+case_th_side = 2;
+case_th_lip = 1.2;
+
+case_lip = 2;
+
+$fa = 5;
+$fs = 0.1;
+
 // calculated
 
 phone_backside_slope_thick = phone_total_thick - phone_edge_thick;
 
-lid_lip_overlap_width xxx bad name = ;
-lid_lip_inner_slope = [ 5, 5 ]; // xxx
+//lid_lip_overlap_width xxx bad name = ;
+//lid_lip_inner_slope = [ 5, 5 ]; // xxx
 
 epp0 = [0,0];
 epp1 = [0, -phone_edge_thick];
-epp2 = epp1 + phone_backside_slope_thick * [ phone_backside_slope, 1 ];
-epp3 = epp1 + [10, 0];
-epp16 = epp0 + [lid_lip_overlap_width, 0];
-epp15 = epp16 + lid_lip_overlap_slope;
-epp14 = epp15 + [10, 0];
-epp11_12_inner = epp0 + lid_lip_overlap_slope;
+epp2 = epp1 + phone_backside_slope_thick * [ phone_backside_slope, -1 ];
+epp3 = epp2 + [10, 0];
+epp4 = epp0 - [1,0] * (case_th_side - case_th_lip);
+epp5 = epp0 + [1,0] * case_lip;
+epp6 = epp5 + [0,1] * case_th_lip;
+
+module rectfromto(a,b) { translate(a) square(b - a); }
+module circleat(c,r) { translate(c) circle(r); }
 
 module EdgeProfile(){
   difference(){
-    offset(r= )
-      polygon
-    polygon([epp0,
-            epp1,
-            epp2,
-            epp3,
-            epp14,
-            epp15,
-            epp16]);
+    hull(){
+      circleat(epp3, r=case_th_bottom);
+      circleat(epp2, r=case_th_bottom);
+      circleat(epp1, r=case_th_side);
+      circleat(epp4, r=case_th_lip);
+      rectfromto(epp0, epp6);
+    }
+    polygon([ epp6 + [10,10],
+             epp6 + [0,10],
+             epp5,
+             epp0,
+             epp1,
+             epp2,
+             epp3 + [10,0] ]);
+  }
+}
+
+EdgeProfile();