From ee2d6753798eeff2139ecad2d1d03caf2f51bee7 Mon Sep 17 00:00:00 2001
From: Stewart Allen <sa@grid.space>
Date: Wed, 17 Sep 2025 01:33:59 -0400
Subject: [PATCH] maintain better nominal outer wall width

---
 src/kiri/mode/fdm/post.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/kiri/mode/fdm/post.js b/src/kiri/mode/fdm/post.js
index e1990c43..21fae9a5 100644
--- a/src/kiri/mode/fdm/post.js
+++ b/src/kiri/mode/fdm/post.js
@@ -383,10 +383,11 @@ function thin_type_3(params) {
         } else if (cr <= maxR * 2) {
             return [ cr / 2, cr / 2 ];
         } else if (cr <= maxR * 3) {
-            if (cr - maxR * 2 >= minR) {
-                return [ maxR, cr - maxR * 2, maxR ];
-            } else {
+            let rem = (cr - midR * 2);
+            if (rem < minR) {
                 return [ cr / 3, cr / 3, cr / 3 ];
+            } else {
+                return [ midR, rem, midR ];
             }
         } else {
             let divs = (cr / midR) | 0;