Social production requirement -/Fits Extreme Manufacturing model of extreme satisfaction of personal production. Build focuses on build experience, with supporting learning via excellent explainer videos. Tight scripts achieved via Script Team and Video Team.
Economic requirement - goal of attaining DMD via its derivatives.
OSE Label is documented
Auto bed level
OSHWA compliant, possibly Respects Your Freedom certified
$500 in parts for single head
Wireless to allow for freeing up computer

Rubber (Ninjaflex) print capable, without head exchange (critical for OSE gaskets, rubber washers and o-rings in low and high pressure hydraulics and pneumatics)
Multiple print head addable, up to 4 for practical considerations

Meets or exceeds reliability of Lulzbot (hours of maintenance free printing between any required fix)
Scalable and Modular

Addable clear enclosure
Functions as an effective RepStrap for building future machines.
XY-fixed build platform. Not negotiable for reasons of robust design
Unheated build platform for low cost, with heated platform as an added module that can be retrofitted readily without compromising bed leveling mechanism.
Self-harvesting for mass production part capacity - by having the head bump the parts produced a off the build platform
Future: works with irregular-dimension filament?
Product Ecology - works with open source filament from open source filament extruder
Functional Logic and design rationale is fully documented
conductive metal print capable for Cordless Tool Construction Set. This should be implementable today with conductive filament for basic connections.

Future Requirements

D3D Requirements