This was the spec that got put together on these forums even before the first RPi arrived.
Naturally the PiHouse (http://www.ThePiShop.org
) meets all these requirements. (But I would say that <g>)
* protection top and bottom,
* protection for the SD card when in place,
* access to all sides,
* access to all on-board top connectors including GPIO (very important),
* designed to allow stacking - daughter boards underneath, LCDs on top etc.
* location points for daughter boards on top or below to create a stack,
* slots in base to allow fitting of side panels for PCB or chassis mounted connectors on daughter boards.
* slots in base for cable clips to hold battery pack in place, A 2300mAh NiMH pack should power a Pi for over 4 hours.
* slot in base to allow battery power plug to pass up to RPi board,
* VESA mounting plate for 100mm x 100mm or 75mm x 75mm VESA mounts on PC screens and TVs
* grippy feet to ensure it does not slide across the desk,
* full air-conditioning (well, air circulation) to keep things cool - at least one of the chips on the RPi runs pretty warm,
* a little bit of extra weight so the RPi does not dangle in mid-air suspended by various leads,
* slot fixing - mounting holes are not available on the RPi but the slots ensure that the RPi is not too rigidly in place but can move slightly,
* secured with screws or some other way to allow easy disassembly/reassembly
* transparent - to show off the RPi at its best!
Life's single regret: not patenting dongles when we invented and named them to protect the Wordcraft word processor on the Commodore PET!
You can buy 31 RPi3s for the £639 price of one Samsung Galaxy S7 Edge smart phone - who buys this stuff?