Step 12 : duplicate the truss beam

Select the truss beam and duplicate it by rotating around Z :
- Array tool from Draft WB and choose "Array type" = Polar,
- then specify the "Angle" and "Number Polar" parameters

 

 

Step 13 : duplicate the main rafter

Select the main rafter and duplicate it by rotating around Z :
- Array tool from Draft WB and choose "Array type" = Polar,
- then specify the "Angle" and "Number Polar" parameters