3D Printing Functional Goods from Puerto Rican Plastic Waste
re:3D is a social enterprise committed to decimating the cost & scale barriers to 3D-printing in order to create jobs & enable problem-solvers worldwide to independently address local needs.
Gigabot, re:3D's flagship technology is a large, industrial 3D-printer starting under $9K. Gigabot rivals the printing quality of other industrial printers at 1/10 the cost and boasts a build volume starting at 30X larger than desktop models.
Founded with $40K from Start-Up Chile, re:3D was a top ranking graduate and successfully closed a $250K Kickstarter campaign for Gigabot while in residency. 5 years later, re:3D has continued to sell printers in 50+ countries.
With no outside investment, all developments to enable human-scale 3D-printing solutions have been accomplished through partnerships, crowdfunding and prizes.
Recently re:3D modified Gigabot to directly 3D-print from shredded reclaimed plastic waste to truly enable affordable, sustainable, and locally driven manufacturing in Puerto Rico, the Caribbean & beyond.

Caribbean islands such as Puerto Rico encounter unique challenges as up to 80% of goods are imported, often with long & expensive supply chains. For critical and high demand goods, resource scarcity & regional considerations must be therefore anticipated in advance in order to ensure all necessary materials are available when needed. Imported goods with potential to be manufactured locally through 3D-printing are an attractive alternative to offsetting the $20B spent on PR imported goods, considering unemployment is at 16.5% and small business is growing at 4%.
While Fused Filament Fabrication offers tremendous benefit for rapid prototyping, mass customization, and low cost fabrication, the technology is contingent on access to high-quality extruded feedstock. Currently the 3D-printer industry represents a "blade & razor" model, where users must have access to feedstock manufacturers. Not surprisingly, heat maps of 3D-printer usage show deployment primarily in N.America, China, and Western Europe. After interviews with current & potential users in the Caribbean & LatAm, re:3D began to question if 3D-printer adoption would increase if access to the 3D-printing supply chain was democratized by leveraging plastic waste. This also offers energy & concomitant emissions savings. For this reason, re:3D opened an office in Puerto Rico in 2017.


After establishing operations in Puerto Rico in 2017, and enduring hurricane Harvey, which hit our Houston Factory one month before Hurricanes Irma and Maria impacted our team in Puerto Rico, we've personally witnessed the opportunity onsite manufacturing provides in disaster response/resiliency as well in new job creation, education, and in supply chain reduction.
Since 2017, we have:
- Provided free 3D design and printing services to anyone impacted by the hurricanes
- Hosted a monthly island-wide meetup for those interested in earning incomes through 3D printing (over 75 attendees to date)
- Sold Gigabot & services to 3 middle schools, one IoT lab, and several small businesses
- Mentored countless entrepreneurs and regularly support free printer & design workshops for multiple groups including universities, IEEE, the American Chemical Society, and Parallel 18 (the island's startup incubator).
- Cultivated a relationship w/the Puerto Rican Science & Research Trust to explore opportunties to design & print functional objects from discarded water bottles to create new jobs
- Accepted invitations through the island's manufaturing association to meet with 4 of the island's largest manufacturing companies, who provided plastic manufacturing waste to test in our hardware in order to divert it from landfills
This work has yielded significant support & exposed multiple opportunties for scale.

3D-printing offers tremendous benefit for rapid prototyping, mass customization, and low cost fabrication. This creates an untapped opportunity to more affordably and accessibly support industrial manufacturing for island nations.
Specifically, the ability to source locally available raw material and feed it directly as pellets or shavings/flake into a printer rather than extruded filament could be extremely advantageous in regards to reducing cost and increasing capabilities in prototyping. The benefits of this innovation are amplified when 3D-printing large-scale industrial objects (defined as > 18 inches cubed). First, the production of large-scale products represents a larger investment of time and material costs (pellets/flake are at least ~ 1/10th the cost of filament). A second reason for the importance of pellet/flake extrusion is it addresses the need to print faster (up to 17x faster). Finally, a dependence on extruded thermoform plastics limits the available library for printing and the ability to mix materials to engineer new formulations and/or the ability to introduce additives directly into the machine while printing.
With domain expertise in large-scale 3D-printing, re:3D has developed a pellet & flake/regrind extrusion 3D printer capable of printing with polyethylene terephthalate (PET- the material found in water bottles) as well as other reclaimed materials, to further optimize the pellet printer to be able to accept reclaimed flake as well as non uniform pellets. This effort includes developing the ability to consistently dry and to easily clean and switch between materials. A novel mechanism for feeding larger volumes of pellets and/or flake into the platform is also being developed with the requisite controls.
Conversations with re:3D’s existing Caribbean customers who utilize re:3D’s Fused Filament Fabrication (FFF) 3D-printers suggest that this new pellet printer could have value to the Puerto Rican customers if water bottles, a PET plastic, and discarded in abundance on the island could be leveraged as the feedstock. This research proposes to source such water bottles and test the ability to grind & extrude the flake in re:3D’s pellet printer. Working the Puerto Rico Science & Research Trust, early prototypes of local objects made from recycled PET using Gigabot have been produced w/positive feedback, which has generated significant interest in scaling a pilot program to create objects from plastic waste in PR.
- Enable the public sector, especially municipalities, to pilot and implement new and innovative systems in their waste management
- Growth

Co-founder and Catalyst