The folks over at Lincoln Binns have been in touch. In 2014, they released an industrial-strength enclosure for the Pi. Since then, of course, there have been two additional Pis released – the 2 and the 3. They’ve now produced an update to the design (see above) suitable for the Pi 3. They’ve even added acrylic end-plates to the design so that the wifi/Bluetooth signal can get out. You can read more about it here.