V2 of the carrier hardware is here. I know don’t if and when one will be able to hack the CN642A, but when someone does, the 3D printed hardware to hold and interface with the CN642A is working. It hold the carrier, it holds the cartridges, and now they release too. I won’t say that this is the final iteration, but this one is manageable.
For anyone interested, click the following link to download it: Download here