2/3-Pin JST-HX 1515 Snap-in Mount

I liked revnull's idea to add a connector inside the chamber of the V0.1 so I decided to make fitment a little better and create a 3 pin version as well. There should be a slight friction fit with this print and I would still suggest using super glue at the back of the connector.

Changed the interior hole to better match cable size and tightened fit on the extrusion.