fairphone-battery-case: Bodge convexity for ExtrudePlan

Theoretically this depends on what the children are but that is too
much faff.  5 seems to do for now.

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

diff --git a/fairphone-battery-case.scad b/fairphone-battery-case.scad
index 03eb0fb9b4d9b952342330271a647b345fb5fb76..247e0e7f86e80c9f9e81df408b2952edbaa52e4a 100644 (file)
--- a/fairphone-battery-case.scad
+++ b/fairphone-battery-case.scad
@@ -118,7 +118,7 @@ module ExtrudePlan(from,to){
   rotate([0,-90,0])
   for (mj=[0,1]) {
     mirror([0,0,mj]) translate([0,0,from]){
-      linear_extrude(height= to-from){
+      linear_extrude(height= to-from, convexity=5){
        for (mi=[0,1]) {
          mirror([0,mi])
            translate([0, battery_th/2])