From b3337797738e04f81e6c2f20c9e99d5a8f1bfcd8 Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Fri, 28 May 2021 11:19:33 -0400
Subject: [PATCH] fix odd layer offset from floating point imprecision

---
 src/mode/fdm/prepare.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mode/fdm/prepare.js b/src/mode/fdm/prepare.js
index 0e9af91f..45ea341f 100644
--- a/src/mode/fdm/prepare.js
+++ b/src/mode/fdm/prepare.js
@@ -325,7 +325,7 @@
             }
             for (let slice of widget.slices) {
                 slice.widget = widget;
-                let z = slice.z + widget.offset.z;
+                let z = (slice.z + widget.offset.z).round(2);
                 let rec = zrec[z] = zrec[z] || {z, slices:[]};
                 if (rec.slices.length === 0) {
                     cake.push(rec);