1 files changed, 1 insertions, 1 deletions

diff --git a/delta.jscad b/delta.jscad
index 5621f0f..85cf254 100644
--- a/delta.jscad
+++ b/delta.jscad
@@ -110,13 +110,13 @@ var CD = {
   rv.outer_inscription_r =
    Math.sqrt(Math.pow(rv.circumscription_r,2)-
     Math.pow(CONFIG.base.sl/2,2));
   rv.mid_inscription_r =
     rv.outer_inscription_r-CONFIG.extrusion.w/2;
   rv.inner_inscription_r =
-    rv.outer_inscription_r-CONFIG.extrusion.w/2;
+    rv.outer_inscription_r-CONFIG.extrusion.w;
   // TODO: properly calculate
   rv.column_r = rv.circumscription_r - 48.29;
   return rv;
  })(),
  duetholder: (function() {
   var rv = {};