Update 5/31/2015 -- I had some trouble with the amplifier wiring and with user Veladrin's help I changed the wiring. A new diagram (rev.3 is posted).
Also -- note in the step-by-step the configuration instructions are for RetroPie 1.9 -- for any newer releases, some of the directories have changed. I plan to post an updated how-to with new instructions, and this will also include a new design for use with the RPi 2.
This is a set of modifications to 3Derp's awesome Portaberry Pi design. Big change - the case mod here allows for direct mounting of the joystick and the face buttons without the plates -- looks a little more streamlined and allows for a logo to be placed on the front face.
I also posted a connections schematic and a very thorough step-by-step how to guide to accompany 3Derp's image gallery. This is good for any Portaberry construction
Small changes - I mixed up the speaker plates as well as the Joystick and button plates with a splatter effect. Looks pretty nice I think.
Whoops - noticed one of the face buttons was off center by a couple of mm -- fixed and uploaded as topmod 1_1
YOU CAN DO THIS -- it is challenging but well worth it. The connection drawing and the step by step should allow you to get through the assembly. This is a very cool project and I wanted to make it easier for other people to make one.
Thanks again to 3Derp. If I got anything wrong let me know and I'll fix it.