EgtCAM5 :

- in DB utensili e lavorazioni limitazione validazione alla apertura del dialogo
- piccola miglioria in controllo MaxMat per lame.

ToolsDbWindow/ToolTreeView.vb

@@ -1269,6 +1269,10 @@ Public Class ToolTreeViewItem
    Private Shared ReadOnly ValidatedProperties() As String = {"Draw", "MaxMat", "Thick", "Diam", "Len", "TotLen", "Speed", "NamePar"}
 
    Private Function GetValidationError(ByVal propertyName As String) As String
+
+      If Not EgtCAM5.ToolsDbViewModel.m_bActive Then
+         Return Nothing
+      End If
       If Array.IndexOf(ValidatedProperties, propertyName) < 0 Then
          Return Nothing
       End If
@@ -1374,7 +1378,7 @@ Public Class ToolTreeViewItem
             If Not IsNothing(m_MaxMat) Then
                Dim dMaxMat As Double = 0
                StringToLen(m_MaxMat, dMaxMat)
-               If (dDiam / 3) < dMaxMat Then
+               If (dDiam / 3) + EPS_SMALL < dMaxMat Then
                   Return EgtMsg(MSG_TOOLSERRORS + 19)
                End If
             End If