demo: introduce sliceat (nfc)

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

diff --git a/moebius-demo.scad b/moebius-demo.scad
index 373844dd5f56fc032fb7914d72ae4d2d7b8d6cff..63a76a5dc47828f6681cef40fbf062abbc47c38a 100644 (file)
--- a/moebius-demo.scad
+++ b/moebius-demo.scad
@@ -2,8 +2,10 @@
 
 include <moebius-core.scad>
 
+sliceat = 11.75 * moebiuscore_nomsize;
+
 intersection(){
   MoebiusCore();
-  translate([0,0,165])
+  translate([0,0, 400-sliceat])
     cube(center=true, 400);
 }