In this project we're building a portable Raspberry Pi using the model A+, PiTFT 3.5” display, Powerboost 500C and a 2500mAh lithium polymer battery.

We designed this very simple case in CAD - It's a two part enclosure that's fasten together with screws. All the components are panel mounted and fit nicely in a small little enclosure.

This is a great starting point to build on top of, because you can modify the parts to fit your project and reuse any components - It's a very modular design and it's open source so you can make it yours.