From 7b2e723fbaeb3ebb19f89021aa745974b65f5a6e Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Thu, 18 Sep 2025 09:59:12 -0400
Subject: [PATCH] clean and simplify inset extrude poly

---
 src/kiri/mode/fdm/post.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/kiri/mode/fdm/post.js b/src/kiri/mode/fdm/post.js
index 52631439..415e9633 100644
--- a/src/kiri/mode/fdm/post.js
+++ b/src/kiri/mode/fdm/post.js
@@ -185,7 +185,7 @@ function thin_type_3(params) {
     let showChainInterpPoints = true;
     let showChainIntersect = false;
     let showNuMedLine = false;
-    let showMedLine = true;
+    let showMedLine = false;
     let showMedPoints = false;
     let showMedNormals = false;
     let showMedRadii = false;
@@ -752,7 +752,9 @@ function thin_type_3(params) {
                     p1.claimed = true;
                 }
             });
-            if (showExtrudeInset) shells.push(nupoly);
+            if (showExtrudeInset) {
+                shells.push(...nupoly.clean().simplify());
+            }
         }
     }