Try putting the cups in the freezer for a while before trying to fit them yourself to contract the metal slightly. then try using a homemade press with blocks of wood, a long threaded bolt & nut to press it all together.
Is there a press owned by anyone here as part of the open tool box that could help?
Try putting the cups in the freezer for a while before trying to fit them yourself to contract the metal slightly. then try using a homemade press with blocks of wood, a long threaded bolt & nut to press it all together.
Is there a press owned by anyone here as part of the open tool box that could help?