From 6bb35b9d1191ef414507acc1723c92e352548a9a Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Sun, 15 Jan 2023 00:52:19 -0500
Subject: [PATCH] correct dup z filter for traces

---
 release.md                 | 1 +
 src/kiri-mode/cam/slice.js | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/release.md b/release.md
index 381348cb..b8244c3d 100644
--- a/release.md
+++ b/release.md
@@ -22,6 +22,7 @@ Full docs @ https://docs.grid.space/projects/kiri-moto
 * CAM fix multi-part object import / grouping
 * CAM fix tracing nested polyline offset ordering
 * CAM refactor of contouring yields 2x - 20x speedup
+* CAM update traces to async slicing, fix use with flip
 
 - refactor object/group storage model in Mesh:Tool
 - add omit pocket to rough and outline
diff --git a/src/kiri-mode/cam/slice.js b/src/kiri-mode/cam/slice.js
index f273528f..23365bec 100644
--- a/src/kiri-mode/cam/slice.js
+++ b/src/kiri-mode/cam/slice.js
@@ -371,7 +371,7 @@ CAM.traces = async function(settings, widget, single) {
                     continue;
                 }
                 // do not add duplicates
-                if (traces[i].isEquivalent(poly) && dz < 1) {
+                if (traces[i].isEquivalent(poly) && dz < 0.1) {
                     return;
                 }
             }