diff --git a/plugins/SampleSearch.java b/plugins/SampleSearch.java
index e8b23c6..1110b57 100644
--- a/plugins/SampleSearch.java
+++ b/plugins/SampleSearch.java
@@ -115,7 +115,7 @@ public class SampleSearch extends Panel {
         jLabel12.setHorizontalAlignment(javax.swing.SwingConstants.TRAILING);
         jLabel12.setText("Z start(mm)");
 
-        spinnerZStart.setModel(new javax.swing.SpinnerNumberModel(0.0d, -3.0d, 6.0d, 1.0d));
+        spinnerZStart.setModel(new javax.swing.SpinnerNumberModel(0.0d, -6.0d, 6.0d, 1.0d));
 
         checkSimulation.setText("Diode simulated");