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a eyespace factory who brought you the
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visionary Mars habitat design Marsha is
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making the dream of living on Mars a
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reality layer-by-layer in just five
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weeks
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a eyespace factory progressed from
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isolated tests of our super-strong
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polymer to an autonomously printed large
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area slab our future habitat foundation
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subsequently validated by NASA four
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weeks later we successfully printed in
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24 hours a large cylinder designed to
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hold 1,200 gallons of water complete
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with prefabricated wall penetrations
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robotically placed and sealed on the fly
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the design and engineering for Marsha
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has been updated with lessons learned
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from our ongoing development of this
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prototype we reaffirmed the importance
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of a robust foundation thermoplastics
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are extruded as hot liquids which
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contract as they cool causing flat
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slender objects to warp into concave
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shapes in order to keep warping to a
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minimum Marcia's foundation will be
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printed in concentric rings beginning
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from the outside in contrast to full
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area plates rings which shrink
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predominantly in plane leaving
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predictable joints that can be
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backfilled without inducing shrinkage in
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the overall slab with the anchors in
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place a topping slab can be printed as a
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final seal without the risk of geometric
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distortion the tie-down clamps are now
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located in the interior of the habitat
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protecting hardware from the elements
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and eliminating bending forces in the
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slab flange another design update
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integrates the sliding bearings and the
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clamp into a single component greatly
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reducing complexity mass and
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streamlining construction due to their
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high mass complexity habitat
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penetrations like windows and hatches
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will initially be fabricated on earth
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flown to Mars and integrated into the
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primary structure which is 3d printed
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using local Martian resources in
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addition to being designed for thermal
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performance air tightness and radiation
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shielding they
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integrate perfectly with the printed
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structure Marcia's window cross-section
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is derived from the cupola of the
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International Space Station which
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features four panels of polycarbonate
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two to hold internal pressure and two to
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protect the pressure panels against
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impacts and debris we have modified it
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with operable louvers in-between the
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redundant pressure and debris panes
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magnetically controlled to allow the
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crew to regulate the light entering the
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interior for purposes of health and
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climate control during construction
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elements are placed into precise voids
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left behind by the printer integration
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consists of depositing a coat of
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airtight but flexible sealant placing
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the elements and holding until the
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sealant adheres the key stone like shape
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decreases the risk of an imperfect fit
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by acting as a placement guide
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effectively increasing construction
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tolerances and ensuring a snug
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wedge-like fit an inner flange
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mechanically holds the elements in place
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against the force of internal pressure
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which becomes fully secured as printing
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continues the skylight is mounted atop
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the finished print and secured using
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sealant and linear motorized clamps the
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habitat is then pressurized in
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preparation for human occupants Marsha
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is located inside Donia men say it sits
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in the relatively mild North
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transitional climate zone that has
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access to year-round sunlight a measure
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that promotes psychological well-being
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and makes solar power viable at 39
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degrees North it harbors accessible
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deposits of subsurface ice for
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conversion to propellant breathable air
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and potable water the site features
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concentrated volcanic rock deposits
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covered only by a thin layer of loose
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regolith making them accessible as an
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institute resource finally Cydonia sits
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at 11 kilometers below mean elevation
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which offers higher protection from
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harmful cosmic radiation due to the
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greater thickness of the atmosphere
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overhead
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this site provides all the assets
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required for a safe and sustainable
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human presence on Mars
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[Music]
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