Create Joint

assembly = TimberAssembly()

frame = Frame.worldXY()
main_beam = Beam(frame, width=0.1, height=0.2, depth=1.0, geometry_type="mesh")
cross_beam = Beam(frame, width=0.2, height=0.4, depth=1.0, geometry_type="mesh")
assembly.add_beam(main_beam)
assembly.add_beam(cross_beam)

TButtJoint.create(assembly, main_beam, cross_beam)