Quoted from GLModular:That is pretty darn cool. If you were to make up appropriate bend joints in varying angles, you'd never have to bend a single piece of wire! That would save some serious time and effort. You could also build in the appropriate mounting for the "ramp made" switch at the same time.
Bending the wire and ball guides was actually much easier than we anticipated when we did the first whitewood of Python's Pinball Circus. We had bought all sorts of metal bending equipment, and what ultimately worked the best was getting short 2 foot lengths of every PVC pipe size from Home Depot or Lowes and bending them by hand.
Of course, what made this easier was that we had full sized, 1 scale drawings of what we were bending that we could:
1) Bend
2) Put item on 1 printed drawing
3) Repeat
We also toyed with using something like the old Spacewarp roller coaster kits and printing some clips to hold some wire, etc. There are already some marble rollercoaster kits on thingiverse that could probably be modified for this purpose too.