diff --git a/src/cuttemplate.h b/src/cuttemplate.h
index af370eb4..08b1a159 100644
--- a/src/cuttemplate.h
+++ b/src/cuttemplate.h
@@ -8,7 +8,6 @@
 enum class CutTemplate
 {
     Quad = 0,
-    Triangle,
     Count
 };
 
@@ -19,8 +18,6 @@ QString CutTemplateToDispName(CutTemplate cutTemplate)                      \
     switch (cutTemplate) {                                                  \
         case CutTemplate::Quad:                                             \
             return QObject::tr("Quad");                                     \
-        case CutTemplate::Triangle:                                         \
-            return QObject::tr("Triangle");                                 \
         default:                                                            \
             return "";                                                      \
     }                                                                       \
@@ -37,12 +34,6 @@ std::vector<QVector2D> CutTemplateToPoints(CutTemplate cutTemplate)         \
                 { 1.0,  1.0},                                               \
                 {-1.0,  1.0},                                               \
             };                                                              \
-        case CutTemplate::Triangle:                                         \
-            return {                                                        \
-                {0,     -1.0},                                              \
-                {1.732,  0},                                                \
-                {0,      1.0},                                              \
-            };                                                              \
         default:                                                            \
             return {                                                        \
                 {-1.0, -1.0},                                               \
diff --git a/src/partwidget.cpp b/src/partwidget.cpp
index 7a7f740f..fd973493 100644
--- a/src/partwidget.cpp
+++ b/src/partwidget.cpp
@@ -7,6 +7,7 @@
 #include <QSizePolicy>
 #include <QFileDialog>
 #include <QSizePolicy>
+#include <nodemesh/misc.h>
 #include "partwidget.h"
 #include "theme.h"
 #include "floatnumberwidget.h"
@@ -495,9 +496,10 @@ void PartWidget::showCutTemplateSettingPopup(const QPoint &pos)
     initShortCuts(popup, graphicsWidget);
     
     std::vector<QPushButton *> presetButtons;
-    for (size_t i = 0; i < (size_t)CutTemplate::Count; ++i) {
-        CutTemplate cutTemplate = (CutTemplate)i;
-        QPushButton *button = new QPushButton(CutTemplateToDispName(cutTemplate));
+    
+    {
+        CutTemplate cutTemplate = CutTemplate::Quad;
+        QPushButton *button = new QPushButton(tr("Reset"));
         connect(button, &QPushButton::clicked, [cutTemplate, &cutDocument, this]() {
             auto points = CutTemplateToPoints(cutTemplate);
             cutDocument.fromCutTemplate(points);
@@ -508,6 +510,36 @@ void PartWidget::showCutTemplateSettingPopup(const QPoint &pos)
         presetButtons.push_back(button);
     }
     
+    /*
+    {
+        QPushButton *button = new QPushButton(tr("Subdivide"));
+        connect(button, &QPushButton::clicked, [&cutDocument, this]() {
+            std::vector<QVector2D> cutTemplate;
+            cutDocument.toCutTemplate(cutTemplate);
+            nodemesh::subdivideFace2D(&cutTemplate);
+            cutDocument.fromCutTemplate(cutTemplate);
+            emit setPartCutTemplate(m_partId, cutTemplate);
+            emit groupOperationAdded();
+        });
+        Theme::initToolButton(button);
+        presetButtons.push_back(button);
+    }
+    */
+    
+    {
+        QPushButton *button = new QPushButton(tr("Chamfer"));
+        connect(button, &QPushButton::clicked, [&cutDocument, this]() {
+            std::vector<QVector2D> cutTemplate;
+            cutDocument.toCutTemplate(cutTemplate);
+            nodemesh::chamferFace2D(&cutTemplate);
+            cutDocument.fromCutTemplate(cutTemplate);
+            emit setPartCutTemplate(m_partId, cutTemplate);
+            emit groupOperationAdded();
+        });
+        Theme::initToolButton(button);
+        presetButtons.push_back(button);
+    }
+
     QVBoxLayout *layout = new QVBoxLayout;
     QHBoxLayout *presetButtonsLayout = new QHBoxLayout;
     for (const auto &it: presetButtons)
diff --git a/thirdparty/nodemesh/nodemesh/misc.cpp b/thirdparty/nodemesh/nodemesh/misc.cpp
index d8b77f77..2d54ca29 100644
--- a/thirdparty/nodemesh/nodemesh/misc.cpp
+++ b/thirdparty/nodemesh/nodemesh/misc.cpp
@@ -491,3 +491,27 @@ void nodemesh::trim(std::vector<QVector3D> *vertices, bool normalize)
         }
     }
 }
+
+void nodemesh::subdivideFace2D(std::vector<QVector2D> *face)
+{
+    auto oldFace = *face;
+    face->clear();
+    for (size_t i = 0; i < oldFace.size(); ++i) {
+        size_t j = (i + 1) % oldFace.size();
+        QVector2D direct = (oldFace[i] + oldFace[j]).normalized();
+        float length = (oldFace[i].length() + oldFace[j].length()) * 0.4; // 0.4 = 0.5 * 0.8
+        face->push_back(oldFace[i] * 0.8);
+        face->push_back(direct * length);
+    }
+}
+
+void nodemesh::chamferFace2D(std::vector<QVector2D> *face)
+{
+    auto oldFace = *face;
+    face->clear();
+    for (size_t i = 0; i < oldFace.size(); ++i) {
+        size_t j = (i + 1) % oldFace.size();
+        face->push_back(oldFace[i] * 0.8 + oldFace[j] * 0.2);
+        face->push_back(oldFace[i] * 0.2 + oldFace[j] * 0.8);
+    }
+}
diff --git a/thirdparty/nodemesh/nodemesh/misc.h b/thirdparty/nodemesh/nodemesh/misc.h
index 53305a02..8f76f1e6 100644
--- a/thirdparty/nodemesh/nodemesh/misc.h
+++ b/thirdparty/nodemesh/nodemesh/misc.h
@@ -1,6 +1,7 @@
 #ifndef NODEMESH_MISC_H
 #define NODEMESH_MISC_H
 #include <QVector3D>
+#include <QVector2D>
 #include <vector>
 #include <set>
 #include <QString>
@@ -31,6 +32,8 @@ size_t weldSeam(const std::vector<QVector3D> &sourceVertices, const std::vector<
     std::vector<QVector3D> &destVertices, std::vector<std::vector<size_t>> &destTriangles);
 bool isManifold(const std::vector<std::vector<size_t>> &faces);
 void trim(std::vector<QVector3D> *vertices, bool normalize=false);
+void subdivideFace2D(std::vector<QVector2D> *face);
+void chamferFace2D(std::vector<QVector2D> *face);
 
 }
 
diff --git a/thirdparty/nodemesh/nodemesh/modifier.cpp b/thirdparty/nodemesh/nodemesh/modifier.cpp
index 68719393..6ce3f0ed 100644
--- a/thirdparty/nodemesh/nodemesh/modifier.cpp
+++ b/thirdparty/nodemesh/nodemesh/modifier.cpp
@@ -1,4 +1,5 @@
 #include <nodemesh/modifier.h>
+#include <nodemesh/misc.h>
 #include <QVector2D>
 #include <QDebug>
 
@@ -47,15 +48,7 @@ void Modifier::createIntermediateNode(const Node &firstNode, const Node &secondN
 void Modifier::subdivide()
 {
     for (auto &node: m_nodes) {
-        auto oldCutTemplate = node.cutTemplate;
-        node.cutTemplate.clear();
-        for (size_t i = 0; i < oldCutTemplate.size(); ++i) {
-            size_t j = (i + 1) % oldCutTemplate.size();
-            QVector2D direct = (oldCutTemplate[i] + oldCutTemplate[j]).normalized();
-            float length = (oldCutTemplate[i].length() + oldCutTemplate[j].length()) * 0.4; // 0.4 = 0.5 * 0.8
-            node.cutTemplate.push_back(oldCutTemplate[i] * 0.8);
-            node.cutTemplate.push_back(direct * length);
-        }
+        subdivideFace2D(&node.cutTemplate);
     }
 }