Hello Everyone!
Today,I created my last element in trap i.e, small square glass in sketcher workbench in freecad. I created two squares in sketcher and then i used cut command from part workbench. But it was slanting and we want straight in drawings and i copied and moved it and i was successful in this. Then I created circle in back side of trap by using sketcher workbench and also created pipe and i gave its height accordingly.
Ray's Blog 