From d2ac6ba9d098fd9d4c4fffae8e039e8117b1f051 Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Mon, 12 Apr 2021 20:45:50 -0400
Subject: [PATCH] update precision to more accurately capture slices touching a
 belt. fix starting point for that case.

---
 src/mode/fdm/prepare.js | 2 +-
 src/mode/fdm/slice.js   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mode/fdm/prepare.js b/src/mode/fdm/prepare.js
index 249ac3fc..1b09f25b 100644
--- a/src/mode/fdm/prepare.js
+++ b/src/mode/fdm/prepare.js
@@ -413,7 +413,7 @@
                 // output seek to start point between mesh slices if previous data
                 printPoint = print.slicePrintPath(
                     slice,
-                    slice.belt && slice.belt.touch ? newPoint(-wtb.w, wtb.d * 2, 0) : printPoint.sub(offset),
+                    slice.belt && slice.belt.touch ? newPoint(-5000, 0, 0) : printPoint.sub(offset),
                     offset,
                     layerout,
                     {
diff --git a/src/mode/fdm/slice.js b/src/mode/fdm/slice.js
index 688d3c40..85fa02f3 100644
--- a/src/mode/fdm/slice.js
+++ b/src/mode/fdm/slice.js
@@ -339,7 +339,7 @@
                             maxx = Math.max(maxx, poly.bounds.maxx);
                         }
                     }
-                    if (Math.abs(slice.belt.miny - smin) < 0.001) {
+                    if (Math.abs(slice.belt.miny - smin) < 0.01) {
                         slice.belt.touch = true;
                         if (!start) start = slice;
                     }