diff --git a/src/libvgcode/include/Types.hpp b/src/libvgcode/include/Types.hpp
index 531bdf27ee..f4a44769bc 100644
--- a/src/libvgcode/include/Types.hpp
+++ b/src/libvgcode/include/Types.hpp
@@ -16,13 +16,18 @@ namespace libvgcode {
 static constexpr float PI = 3.141592f;
 
 //
-// Default radius, in mm, of the cylinders used to render the travel moves.
+// Predefined values for the radius, in mm, of the cylinders used to render the travel moves.
 //
 static constexpr float DEFAULT_TRAVELS_RADIUS_MM = 0.1f;
+static constexpr float MIN_TRAVELS_RADIUS_MM = 0.05f;
+static constexpr float MAX_TRAVELS_RADIUS_MM = 1.0f;
+
 //
-// Default radius, in mm, of the cylinders used to render the wipe moves.
+// Predefined values for the radius, in mm, of the cylinders used to render the wipe moves.
 //
 static constexpr float DEFAULT_WIPES_RADIUS_MM = 0.1f;
+static constexpr float MIN_WIPES_RADIUS_MM = 0.05f;
+static constexpr float MAX_WIPES_RADIUS_MM = 1.0f;
 
 //
 // Vector in 3 dimensions
diff --git a/src/libvgcode/include/Viewer.hpp b/src/libvgcode/include/Viewer.hpp
index a79bb7e8a5..c93d007942 100644
--- a/src/libvgcode/include/Viewer.hpp
+++ b/src/libvgcode/include/Viewer.hpp
@@ -309,6 +309,7 @@ public:
     float get_travels_radius() const;
     //
     // Set the radius, in mm, of the cylinders used to render the travel moves.
+    // Radius is clamped to [MIN_TRAVELS_RADIUS_MM..MAX_TRAVELS_RADIUS_MM]
     //
     void set_travels_radius(float radius);
     //
@@ -317,6 +318,7 @@ public:
     float get_wipes_radius() const;
     //
     // Set the radius, in mm, of the cylinders used to render the wipe moves.
+    // Radius is clamped to [MIN_WIPES_RADIUS_MM..MAX_WIPES_RADIUS_MM]
     //
     void set_wipes_radius(float radius);
 
diff --git a/src/libvgcode/src/ViewerImpl.cpp b/src/libvgcode/src/ViewerImpl.cpp
index df234b71b4..819bac0b3c 100644
--- a/src/libvgcode/src/ViewerImpl.cpp
+++ b/src/libvgcode/src/ViewerImpl.cpp
@@ -1002,13 +1002,13 @@ void ViewerImpl::set_color_range_palette(EViewType type, const Palette& palette)
 
 void ViewerImpl::set_travels_radius(float radius)
 {
-    m_travels_radius = std::clamp(radius, 0.05f, 0.5f);
+    m_travels_radius = std::clamp(radius, MIN_TRAVELS_RADIUS_MM, MAX_TRAVELS_RADIUS_MM);
     update_heights_widths();
 }
 
 void ViewerImpl::set_wipes_radius(float radius)
 {
-    m_wipes_radius = std::clamp(radius, 0.05f, 0.5f);
+    m_wipes_radius = std::clamp(radius, MIN_WIPES_RADIUS_MM, MAX_WIPES_RADIUS_MM);
     update_heights_widths();
 }