Yamaha AES String Tensioner

The AES series of Yamaha guitars have these proprietary string tensioners which are no longer found. It is possible to print them in a fairly hard material, PLA is not recommended.This is perfect for aes 800 AES 520-D6 , 620 , 620SH ,720 , 820 , 920 , they use these string tensioners, but I'm not sure if the sizes are compatible.