As a DIY Fiber Cable article was just posted, this seems like a good time to share this article on 3-D printing connectors for your DIY cables. The Connectors are really the heart of the cable, as the fiber is simply a manufactured item bought from a supplier.
One of weak points of most of these DIY's is getting the right connectors. The solutions range from buying connectors (at about $10 a pop or $20 per cable), re-using connectors from old cables (which may require drilling them