Here is my example:
After grounding the pipe down to fit it into the risers, the cable was too short forcing me to hack off 2". Then I used a drill bit with tap to drill the top of the 45degree elbows. After marking where the hand bolts lined up on the bar, I drilled and tapped those as well. Now the hand bolt threads into both the elbow and handle giving me a strong base. When it's not needed I unscrew the bolts, fold the handle onto the table top and store it under a pinball machine.