<< JavaView`JLink`

InstallJavaView[];

<< KnotTheory`

SetOptions[TubePlot, TubeSubdivision -> {18, 6}]

s=Sqrt[2]/2;

Show[L1=Graphics3D[Join[First@TubePlot[{Cos[t],Sin[t],0},{t,0,2Pi},0.1],First@TubePlot[{-2/3+Cos[t],s Sin[t],s Sin[t]},{t,0,2Pi},0.1],First@TubePlot[{2/3+Cos[t],s Sin[t],-s Sin[t]},{t,0,2Pi},0.1]]]
]

Link1=JavaView[L1]

Show[L2=Graphics3D[Join[First@TubePlot[{Cos[t],Sin[t],0},{t,0,2Pi},0.1],First@TubePlot[{-4/3+Cos[t],s Sin[t],s Sin[t]},{t,0,2Pi},0.1],First@TubePlot[{4/3+Cos[t],s Sin[t],-s Sin[t]},{t,0,2Pi},0.1]]]
]

Link2=JavaView[L2]