diff --git a/components/calcValues.vue b/components/calcValues.vue
index 47e6ba4..6d25bec 100644
--- a/components/calcValues.vue
+++ b/components/calcValues.vue
@@ -49,13 +49,13 @@ const changeParametres = () => {
     form_state.total_length_mm = form_state.total_length * 1000
     if (auto_section_width.value) {
         // form_state.length
-        if (form_state.total_length_mm % form_state.length) {
-            let w = parametric.length.max
-            while ((form_state.total_length_mm % form_state.length > 0) && w > parametric.length.min) {
-                w -= parametric.length.step
-            }
-            form_state.length = w
+        // if (form_state.total_length_mm % form_state.length) {
+        let w = parametric.length.max
+        while (((form_state.total_length_mm % w) > 0) && w > (parametric.length.min + parametric.length.step * 10)) {
+            w -= parametric.length.step
         }
+        form_state.length = w
+        // }
 
     }
     if (form_state.total_length_mm < form_state.length) {