From FreeCAD Documentation
- Select any face of a previously created Arch Structure object.
- Then select Bent-Shape Rebar from the rebar tools.
- A task panel will pop-out on the left side of the screen as shown below.
- Select the desired orientation.
- Populate the inputs like 'Left Cover', 'Right Cover', 'Top Cover', 'Bottom Cover', 'Front Cover', 'Bent Angle', 'Bent Factor', 'Rounding' and 'Diameter' of the rebar.
- Select the mode of distribution either 'Amount' or 'Spacing'.
- Pick Selected Face is used to verify or change the face for rebar distribution.
- Click OK or Apply to generate the rebars.
- Click Cancel to exit the task panel.