FreeCAD 1.0 Part Design - Make UL Articulated Finger

FreeCAD 1.0 - UL Articulated Finger. Use Sketcher, Part Design & Part Workbench to make a UL Articulated Probe. UL articulated probe is specified by several UL / CSA Standards to test whether the electrical parts are accessible or not, to ensure people won't touch electrical live part that cause safety hazards. It is a common tool used for lighting product certification.