Da Vinci Y-Axis Carriage

The problem I have with some printer manufacturers is they use closed loop belts so if something were to happen to the belt you're out of luck unless you can source a belt or buy it at an inflated price from the manufacturer.

My goals were to create or modify a carriage to use the factory belt or use an open loop belt which are readily available. My second goal was the ability to replace the rods without having to thread a hole in the end of the new replacement rod. The Da Vinci printer uses