Campagnolo Nuovo Record long pulley cage

thingiverse

A while back, I designed a long derailleur cage for my Campy NR rear derailleur so I can use it with a wide-range touring drivetrain. This project never came to fruition since I couldn't get access to a CNC machine to make this out of aluminum. I do suppose it could be 3D printed in plastic but I wanted to match the quality of the rest of the derailleur. I'm also not sure that plastic would be stiff enough. This derailleur cage is modeled to be the same length as a Deore XT M735 long cage and use stock pulleys. After making this on a CNC mill, it is necessary to tap the holes for the pulley screws as well as the hole for the P-pivot bolt. If and when I get access to a CNC mill, this will surely be one of the first things I make.