- made sure that the units are read from the self.defaults and not from the GUI

- added Robber Bar option to Copper Thieving Tool

flatcamTools/ToolPDF.py

@@ -180,7 +180,7 @@ class ToolPDF(FlatCAMTool):
         self.pdf_decompressed[short_name] = ''
 
         # the UNITS in PDF files are points and here we set the factor to convert them to real units (either MM or INCH)
-        if self.app.ui.general_defaults_form.general_app_group.units_radio.get_value().upper() == 'MM':
+        if self.app.defaults['units'].upper() == 'MM':
             # 1 inch = 72 points => 1 point = 1 / 72 = 0.01388888888 inch = 0.01388888888 inch * 25.4 = 0.35277777778 mm
             self.point_to_unit_factor = 25.4 / 72
         else: