D3D Requirements

• 1 day build time - including 4 hours of instruction and 6 hours of build
• Fits Extreme Manufacturing model of extreme satisfaction of personal production. Build focuses on build experience, with supporting learning via excellent explainer videos.
• Auto bed level
• OSHWA compliant, possibly Respects Your Freedom certified
• $500 in parts for single head
• Wireless to allow for freeing up computer
• Rubber 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)
• 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.