THE STOP PLATE

The stop plate was very tricky. The idea was to use the stop boss protruding from the rear of the Campy body to register on a notch cut in the plate, with a bent leg like the Simplex plate to register against the outside diameter of the hanger. Easier said than done as those three aspects need to be in precise relationship to each other. It took me four tries. Two of them broke when I heated the alloy to bend the little leg. I ended up using the first one after having initially rejected it because I thought the notch location allowed the derailleur to sit too far forward. So it goes. It’s a prototype and I would like to perhaps mill a plate out of a little thicker material to provide a heavier, more robust stop. Not sure this part will stand up to rigorous use as is, but it works. Subject to further modification.