Cable chain system with 25x15mm internal cross-section. Cables and chain links can be inserted through a simple clip.
Bend-angle on a single hinge: 45° upwards, 30° downwards. 40mm bend radius.
Your printer should be able to print 0.2mm clearances accurately to print in place, the parts can also be assembled afterward.
The author remixed this model.
Scaled models with adjusted clearances. Replaced screwholes.