X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=fairphone-case.scad;h=5b82796ff6de584dc33fe03a370d4d711ae7686a;hb=62cf5e9b1dcb0a68f27adc090723095d625c9208;hp=16a9bd613572a7bb1d99847e1e98156fa36838c5;hpb=5ea2ddae765bf5d7aaf8c52527e66f27485f5c97;p=reprap-play.git

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 16a9bd6..5b82796 100644
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -408,6 +408,12 @@ chk(hex22, 10.9975);
 chk(hex23, 13.74);
 chk(hex24, 18.75);
 
+lid_close_clearance_skew =
+  (lpp10[1] - hppB[1]) /
+  (lpp10[0] - hppB[0]);
+
+echo("SK",lid_close_clearance_skew);
+
 // catch
 
 cppJ = [ epp4[0] + catch_thickness, lpp10[1] ];
@@ -521,6 +527,15 @@ module LidEdgeProfile(){
   }
 }
 
+module LidEdgeFoldClearanceProfile(){
+  polygon([ lpp10,
+	    lpp11,
+	    lpp11 + [-20,  0],
+	    lpp11 + [-20, 20],
+	    lpp11 + [+20, 20],
+	    lpp10 + [+20,  0] ]);
+}
+
 module ButtonCoverProfile(){
   intersection(){
     polygon(concat([ bppM, bppP, bppO, bppJ ],
@@ -824,7 +839,7 @@ module HingePortion(x0,x1){
     mirror([1,0,0])
     rotate([90,0,-90])
     linear_extrude(height=x1-x0)
-    children(0);
+    children();
 }
 
 module CatchPortion(width){
@@ -1055,11 +1070,28 @@ module LidAdhocMultiprintFrame(phase){
   }
 }
 
+module LidAroundEdges(){
+  AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
+    children();
+}
+
 module Lid(){ ////toplevel
+  skew_centre = [0, lpp11[0], lpp11[1]];
   difference(){
     union(){
-      AroundEdges(lpp10[1], lpp13[1] - lpp10[1], 0)
-        LidEdgeProfile();
+      intersection(){
+	LidAroundEdges()
+	  LidEdgeProfile();
+
+	translate(skew_centre)
+	  multmatrix([[ 1, 0, 0, 0 ],
+		      [ 0, 1, -lid_close_clearance_skew, 0 ],
+		      [ 0, 0, 1, 0 ],
+		      [ 0, 0, 0, 1 ]])
+	  translate(-skew_centre)
+	  LidAroundEdges()
+	  LidEdgeFoldClearanceProfile();
+      }
 
       // button covers
       Buttons(){
@@ -1076,7 +1108,10 @@ module Lid(){ ////toplevel
       }
 
       // hinge arms
-      HingePortion(hex20, hex21) HingeLidProfile();
+      HingePortion(hex20, hex21) {
+	LidEdgeProfile();
+	HingeLidProfile();
+      }
 
       // catch
       CatchPortion(catch_width)
@@ -1423,7 +1458,7 @@ module DemoHingeAngle(ang1,ang2){
 }
 
 module DemoHingeAngles(){ ////toplevel
-  angles = [ 0, 6, 12, 16, 24, 36 ];
+  angles = [ 0, 4, 8, 12 ];
   echo("angles",angles);
   for (i=[0 : len(angles)-1]) {
     translate(i * [0, 0, 30]) {