Positrusion Filament Recycling System

Positrusion Filament Recycling System

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX14CM19P
Agency Tracking Number: 144521
Amount: $124,984.00
Phase: Phase I
Program: SBIR
Awards Year: 2014
Solicitation Year: 2014
Solicitation Topic Code: H10.01
Solicitation Number: N/A
Small Business Information
11711 North Creek Parkway South, Suite D113, Bothell, WA, 98011-8808
DUNS: 877425330
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jesse Cushing
 Aerospace Composites Engineer
 (425) 486-0100
 cushing@tethers.com
Business Contact
 Robert Hoyt
Title: Business Official
Phone: (425) 486-0100
Email: hoyt@tethers.com
Research Institution
 Stub
Abstract
TUI proposes a novel process to produce 3d printer feedstock filament out of scrap ABS on the ISS. Currently the plastic filament materials that most 3d printers use are produced with screw-based extruders that are fundamentally designed for high volume terrestrial production from uniformly pelletized resin feedstock. These require relatively large continuous batch sizes with significant operator inputs and have generally poor control over the produced filament geometry. Existing extrusion machines also tend to rely on separate facilities for fully drying the material beforehand, and do not inherently provide tight flow-rate control. The proposed effort will develop a filament extruding machine that uses a process called Positrusion that is designed from the ground up for optimally producing small batches of positively controlled round filament directly out of arbitrarily shaped scraps of ABS plastic, while meeting requirements for operation on the ISS. The machine will accept miscellaneous ABS parts, it will dry and degas the input material before melting and extruding it through a die, and the cross-sectional dimensions and feed-rate of the cooling extrudate will be tightly controlled in a continuous analog of closed-die molding.

* Information listed above is at the time of submission. *

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